Lennox FCA 120, FCA 140, FCA 160, FCA 190, FCK 60 Installation, Operation And Maintenance Manual

INSTALLATION
OPERATING &
MAINTENANCE MANUAL

ROOFTOP
FLEXY™

English
August 2003

IOM / ROOF-TOP FLEXY™ Series - Page 1

CONTENTS

The present manual applies to the following ROOFTOP versions :

FCA 60 - FCA 70 - FCA 85 - FCA 100 - FCA 120 - FCA 140 - FCA 160 - FCA 190
FCK 60 - FCK 70 - FCK 85 - FCK 100 - FCK 120 - FCK 140 - FCK 160 - FCK 190
FHA 60 - FHA 70 - FHA 85 - FHA 100 - FHA 120 - FHA 140 - FHA 160 - FHA 190
FHK 60 - FHK 70 - FHK 85 - FHK 100 - FHK 120 - FHK 140 - FHK 160 - FHK 190
FDA 60 - FDA 70 - FDA 85 - FDA 100 - FDA 120 - FDA 140 - FDA 160 - FDA 190
FDK 60 - FDK 70 - FDK 85 - FDK 100 - FDK 120 - FDK 140 - FDK 160 - FDK 190
FGA 60 - FGA 70 - FGA 85 - FGA 100 - FGA 120 - FGA 140 - FGA 160 - FGA 190
FGK 60 - FGK 70 - FGK 85 - FGK 100 - FGK 120 - FGK 140 - FGK 160 - FGK 190

FXA 25 - FXA 30 - FXA 35 - FXA 40 - FXA 55 - FXA 70 - FXA 85 - FXA 100 - FXA 1 10 - FXA 140 - FXA 170
FXK 25 - FXK 30 - FXK 35 - FXK 40 - FXK 55 - FXK 70 - FXK 85 - FXK 100 - FXK 110 - FXK 140 - FXK 170

The technical information and specifications contained in this manual are for reference only. The manufacturer reserves the right to modify these without
warning and without obligation to modify equipment already sold.

Ref. FLEXY_IOM/0803-E

NOTES FOR UNIT FITTED WITH GAS BURNER :

THE UNIT MUST BE INSTALLED IN ACCORDANCE WITH LOCAL
SAFETY CODES AND REGULATIONS AND CAN ONLY BE USED IN
WELL VENTILLATED AREA.

PLEASE READ CAREFULLY THE MANUFACTURER'S INSTRUCTIONS
BEFORE STARTING THIS UNIT.

THIS MANUAL IS ONLY VALID FOR UNITS DISPLAYING THE
FOLLOWING CODES:

GB IR GR DA NO FI IS

In case these symbols are not displayed on the unit, please refer to the
technical documentation which will eventually detail any modifications
required to the installation of the unit in a particular country.

INSTALLATION
OPERATION
MAINTENANCE MANUAL

Page 2 - IOM / ROOF-TOP FLEXY™ Series

CONTENTS

IMPORT ANT NOTICE......................................................................................... 3

INSTALLATION

TRANSPORT - HANDLING .............................................................................................. 4

INSTALLATION ............................................................................................................... 12

INST ALLATION ON A ROOF MOUNTING FRAME...........................................................13

INSTALLA TION ON POSTS ............................................................................................ 15

COMMISSIONING........................................................................................................... 16

OPERATION

VENTILATION ................................................................................................................. 21

AIR FLOW BALANCING.................................................................................................. 23

FILTERS .........................................................................................................................39

FANST ART OPERA TION................................................................................................. 40

FX AIR FLOW BALANCING............................................................................................. 41

HOT WA TER COILS ....................................................................................................... 44

GAS BURNERS.............................................................................................................. 45

CONTROL FUNCTIONS

USING THE KP 17 COMFORT DISPLA Y........................................................................ 57

USING THE KP02 MAINTENANCE DISPLAY................................................................. 58

USING THE KP07 REMOTE GRAPHICAL DISPLA Y...................................................... 72

BMS CONTACTS KIT...................................................................................................... 81

CLIMATIC™ P ARAMETERS............................................................................................82

CONTROL INTERF ACE CLIMALINK/CLIMALOOK......................................................... 88

WIRING DIAGRAMS

ELECTRICAL WIRING DIAGRAMS LIST OF ITEMS....................................................... 96

ELECTRICAL WIRING DIAGRAMS .............................................................................. 100

TROUBLESHOOTING

SAFETY AND ERROR CODES..................................................................................... 117

MAINTENANCE DIAGNOSTIC .....................................................................................123

MAINTENANCE PLAN ..................................................................................................126

WARRANTY ..................................................................................................................129

CERTIFICATES

ISO 9001 CERTIFICA TION........................................................................................... 130

PED CERTIFICA TION OF CONFORMITY..................................................................... 131

GLAS WOOL FIRE CLASS ........................................................................................... 132

33 KW GAS BURNER CE CERTIFICA TION OF CONFORMITY................................... 133

60 KW GAS BURNER CE CERTIFICA TION OF CONFORMITY................................... 134

120 KW GAS BURNER CE CERTIFICA TION OF CONFORMITY................................. 135

180 kW GAS BURNER CE CERTIFICA TION OF CONFORMITY ................................. 136

INSULATION FIRE CLASS ........................................................................................... 137

CONTENTS

IOM / ROOF-TOP FLEXY™ Series - Page 3

IMPORTANT NOTICE

IMPORTANT NOTICE

All work on the unit must be carried out by a qualified and authorised employee.

Non-compliance with the following instructions may result in injury or serious accidents.

Work on the unit:

• The unit shall be isolated from the electrical supply by disconnection and locking using the
main isolating switch.

• Workers shall wear the appropriate personal protective equipment (helmet, gloves,
glasses, etc.).

Work on the electrical system:

• Work on electric components shall be performed with the power off (see below) by
employees having valid electrical qualification and authorisation.

Work on the refrigerating circuit(s):

• Monitoring of the pressures, draining and filling of the system under pressure shall be
carried out using connections provided for this purpose and suitable equipment.

• To prevent the risk of explosion due to spraying of coolant and oil, the relevant circuit shall
be drained and at zero pressure before any disassembly or unbrazing of the refrigerating
parts takes place.

• There is a residual risk of pressure build-up by degassing the oil or by heating the
exchangers after the circuit has been drained. Zero pressure shall be maintained by
venting the drain connection to the atmosphere on the low pressure side.

• The brazing shall be carried out by a qualified brazier. The brazing shall comply with stan­dard NF EN1044 (minimum 30% silver).

Replacing components:

• In order to maintain CE marking compliance, replacement of components shall be carried
out using spare parts, or using parts approved by Lennox.

• Only the coolant shown on the manufacturer's nameplate shall be used, to the exclusion of
all other products (mix of coolants, hydrocarbons, etc.).

CAUTION:

In the event of fire, refrigerating circuits can cause an explosion and spray coolant gas and oil.

Page 4 - IOM / ROOF-TOP FLEXY™ Series

TRANSPORT - HANDLING

Figure 1

DELIVERY CHECKS

On receipt of a new equipment please check the following
points. It is the customer's responsibility to ensure that the
products are in good working order:

- The exterior has not been damaged in any way.

- The lifting and handling equipment are suitable for the
equipment and comply with the specifications of the handling
instructions enclosed here-in.

- Accessories ordered for on site installation have been
delivered and are in good working order.

- The equipment supplied corresponds to the order and
matches the delivery note.

If the product is damaged, exact details must be confirmed
in writing by registered post to the shipping company within
48 hours of delivery (working days). A copy of the letter must
be addressed to Lennox and the supplier or distributor for
information purposes. Failure to comply will invalidate any
claim against the shipping company.

RATING PLATE

The rating plate provides a complete reference for the model
and ensures that the unit corresponds to the model ordered.
It states the electrical power consumption of the unit on start­up, its rated power and its supply voltage. The supply voltage
must not deviate beyond +10/-15 %. The start-up power is
the maximum value likely to be achieved for the specified
operational voltage. The customer must have a suitable
electrical supply. It is therefore important to check whether
the supply voltage stated on the unit's rating plate is
compatible with that of the mains electrical supply. The rating
plate also states the year of manufacture as well as the type
of refrigerant used and the required charge for each
compressor circuit.

STORAGE

When units are delivered on site they are not always required
immediately and are sometimes put into storage. In the event
of medium to long-term storage, we recommend the following
procedures :

- Ensure that there is no water in the hydraulic systems.

- Keep the heat exchanger covers in position (AQUILUX cover).

- Keep protective plastic film in position.

- Ensure the electrical panels are closed.

- Keep all items and options supplied in a dry and clean
place for future assembly before using the equipment.

MAINTENANCE KEY

On delivery we recommend that you keep the key which is
attached to an eyebolt in a safe and accessible place. This
allows you to open the panels for maintenance and
installation work.
The locks are ¼ turn +
then tighter (figure 2).

CONDENSATE DRAINS

The condensate drains are not assembled when delivered
and are stored
in the electrical panel with their clamping collars.
To assemble them, insert them
on the condensate tray outlets
and use a screwdriver to
tighten the collars (figure 3).

Figure 3

Figure 2

IOM / ROOF-TOP FLEXY™ Series - Page 5

TRANSPORT - HANDLING

DIMENSIONS AND WEIGHTS

Condensation

Airflow configuration

WEIGHT (kg) SLING

std std high

Standard Centrifugal 12345678 gas gas 1 2 3

FC/FH 060 - Cooling only and heat pump

X - X------X2825 2255 1470 630 1060 - - 2210 - ­X - - - - X - - X - 2825 2255 1470 630 1090 - - 2210 - ­X - - X X - X X - - 2825 2285 1470 630 1090 - - 2210 - -

- X X------X2875 2255 2070 630 1230 - - 2590 1855 -

- X - - - X - - X - 2875 2255 2070 630 1260 - - 2590 1855 -

- X - X X - X X - - 2875 2285 2070 630 1260 - - 2590 1855 -

FG 060 - GAS

X - X------X2825 2255 1470 630 - 1210 1280 2210 - -

- X X------X2875 2255 2070 630 - 1380 1450 2590 1855 -

FC/FH 070 - Cooling only and heat pump

X - X------X2825 2255 1470 630 1075 - - 2210 - ­X - - - - X - - X - 2825 2255 1470 630 1100 - - 2210 - ­X - - X X - X X - - 2825 2285 1470 630 1100 - - 2210 - -

- X X------X2875 2255 2070 630 1245 - - 2590 1855 -

- X - - - X - - X - 2875 2255 2070 630 1270 - - 2590 1855 -

- X - X X - X X - - 2875 2285 2070 630 1270 - - 2590 1855 -

FC/FH 070 - GAS

X - X------X2825 2255 1470 630 - 1230 1300 2210 - -

- X X------X2875 2255 2070 630 - 1400 1470 2590 1855 -

FC/FH 085 - Cooling only and heat pump

X - X------X3785 2255 1495 630 1220 - - 2830 2330 ­X - - - - X - - X - 3785 2255 1495 630 1270 - - 2830 2330 ­X - - X X - X X - - 3785 2285 1495 630 1275 - - 2830 2330 -

- X X------X3835 2255 2080 630 1435 - - 3230 2430 1870

- X - - - X - - X - 3835 2255 2080 630 1485 - - 3230 2430 1870

- X - X X - X X - - 3835 2285 2080 630 1490 - - 3230 2430 1870

FC/FH 085 - GAS

X - X------X3785 2255 1495 630 - 1320 1390 2830 2330 -

- X X------X3835 2255 2080 630 - 1535 1605 3230 2430 1870

FC/FH 100 - Cooling only and heat pump

X - X------X3785 2255 1495 630 1280 - - 2830 2330 ­X - - - - X - - X - 3785 2255 1495 630 1320 - - 2830 2330 ­X - - X X - X X - - 3785 2285 1495 630 1320 - - 2830 2330 -

- X X------X3835 2255 2080 630 1495 - - 3230 2430 1870

- X - - - X - - X - 3835 2255 2080 630 1545 - - 3230 2430 1870

- X - X X - X X - - 3835 2285 2080 630 1545 - - 3230 2430 1870

FC/FH 100 - GAS

X - X------X3785 2255 1495 630 - 1380 1450 2830 2330 -

- X X------X3835 2255 2080 630 - 1595 1665 3230 2430 1870

HEIGHT (mm)

HOOD (mm)

WIDTH (mm)

LENGTH (mm)

Page 6 - IOM / ROOF-TOP FLEXY™ Series

TRANSPORT - HANDLING

DIMENSIONS AND WEIGHTS

WEIGHT (kg) SLING

std std high

Standard Centrifugal 12345678 gas gas 1 2 3

FC/FH 120 - Cooling only and heat pump

X - X------X3585 2255 1470 630 1530 - - 2700 - 2080
X - - - - X - - X - 3585 2255 1470 630 1580 - - 2700 - 2080
X - - X X - X X - - 3585 2285 1470 630 1600 - - 2700 - 2080

- X X------X3635 2255 1930 630 1805 - - 3000 2410 1880

- X - - - X - - X - 3635 2255 1930 630 1855 - - 3000 2410 1880

- X - X X - X X - - 3635 2285 1930 630 1875 - - 3000 2410 1880

FG 120 - GAS

X - X------X4035 2255 1470 630 - 1840 1890 3000 - 2310

- X X------X4085 2255 1930 630 - 2115 2165 3300 2700 2080

FC/FH 140 - Cooling only and heat pump

X - X------X3585 2255 1470 630 1630 - - 2700 - 2080
X - - - - X - - X - 3585 2255 1470 630 1680 - - 2700 - 2080
X - - X X - X X - - 3585 2285 1470 630 1700 - - 2700 - 2080

- X X------X3635 2255 1930 630 1905 - - 3000 2410 1880

- X - - - X - - X - 3635 2255 1930 630 1955 - - 3000 2410 1880

- X - X X - X X - - 3635 2285 1930 630 1975 - - 3000 2410 1880

FG 140 - GAS

X - X------X4035 2255 1470 630 - 1920 1970 3000 - 2310

- X X------X4085 2255 1930 630 - 2000 2050 3300 2700 2080

FC/FH 160 - Cooling only and heat pump

X - X------X3595 2255 2070 900 2050 - - 2700 - 2090
X - - - - X - - X - 3595 2255 2070 900 2120 - - 2700 - 2090
X - - X X - X X - - 3595 2285 2070 900 2140 - - 2700 - 2090

- X X------X3645 2255 2070 900 2275 - - 2700 - 2090

- X - - - X - - X - 3645 2255 2070 900 2345 - - 2700 - 2090

- X - X X - X X - - 3645 2285 2070 900 2365 - - 2700 - 2090

FG 160 - GAS

X - X------X4045 2255 2070 900 - 2410 2460 3000 - 2320

- X X------X4095 2255 2070 900 - 2635 2685 3000 - 2320

FC/FH 190 - Cooling only and heat pump

X - X------X3595 2255 2070 900 2175 - - 2700 - 2090
X - - - - X - - X - 3595 2255 2070 900 2245 - - 2700 - 2090
X - - X X - X X - - 3595 2285 2070 900 2265 - - 2700 - 2090

- X X------X3645 2255 2070 900 2400 - - 2700 - 2090

- X - - - X - - X - 3645 2255 2070 900 2470 - - 2700 - 2090

- X - X X - X X - - 3645 2285 2070 900 2490 - - 2700 - 2090

FG 190 - GAS

X - X------X4045 2255 2070 900 - 2540 2600 3000 - 2320

- X X------X4095 2255 2070 900 - 2765 2825 3000 - 2320

HEIGHT (mm)

CASQUETTE (mm)

Condensation

Airflow configuration

WIDTH (mm)

LENGTH (mm)

IOM / ROOF-TOP FLEXY™ Series - Page 7

TRANSPORT - HANDLING

HANDLING

The equipment can be moved using the lifting holes on the
top of the unit.
The "sling" length is the value that we recommend for safe
handling of the equipment.

Some units can only be supported by four slings at right­angles. Others require different lengths (see figures 4).
It is essential that all lifting holes are used and that the slings
are all of the same size to avoid damaging the equipment.

Sling length = 2210 mm
for angle = 45°C

FC.../FH.../FD.../FG... 060 & 070

LENGTH HEIGHT WIDTH AUVENT WEIGHT (kg)

lateral ventil standard

MODELS mm mm mm mm mm kg
FX 025 4070 1635 1055 490 600 950
FX 030 4070 1635 1055 490 600 980
FX 035 4750 2255 1290 490 600 1400
FX 040 4750 2255 1290 490 600 1450
FX 055 4750 2255 1290 490 600 1600
FX 070 5050 2255 1725 890 600 1800
FX 085 5050 2255 1725 890 600 1900
FX 100 5050 2255 1725 890 600 2000
FX 110 5650 2255 2000 860 - 2620
FX 140 5650 2255 2000 860 - 2620
FX 170 5650 2255 2000 860 - 2650

DIMENSIONS AND WEIGHTS

Figure 4 for all handling
drawings - pages 7 to11

Page 8 - IOM / ROOF-TOP FLEXY™ Series

TRANSPORT - HANDLING

FC.../FH.../FD.../FG... 060 & 070 with centrifugal fans

Sling length = 2590 mm
for angle = 45°C

Sling length = 2330 mm
for angle = 64,5°C

FC.../FH.../FD.../FG... 085 & 100

Sling length = 2430 mm
for angle = 45°C

FC.../FH.../FD.../FG... 085 & 100 with centrifugal fans

Sling length = 3230 mm

for angle = 45°C

Sling length = 2830 mm

for angle = 45°C

Sling length = 1870

mm

for angle = 45°C

Figure 3 for all handling drawings - pages 7 to11

IOM / ROOF-TOP FLEXY™ Series - Page 9

TRANSPORT - HANDLING

Sling length = 2080 mm
for angle = 45°C

FC.../FH.../FD... 120 & 140

Sling length = 2700 mm
for angle = 45°C

Sling length = 2410 mm
for angle = 45°C

FC.../FH.../FD... 120 & 140 with centrifugal fans

Sling length = 2080 mm
for angle = 45°C

FG... 120 & 140 with gas burner

Sling length = 2700 mm

for angle = 45°C

Sling length = 3000 mm

for angle = 45°C

Sling length = 1880 mm
for angle = 45°C

Figure 3 for all handling drawings - pages 7 to11

Page 10 - IOM / ROOF-TOP FLEXY™ Series

TRANSPORT - HANDLING

Sling length = 2700 mm
for angle = 45°C

FG... 120 & 140 with gas burner and centrifugal fans

Sling length = 3300 mm

for angle = 45°C

Sling length = 2080 mm
for angle = 45°C

Sling length = 2090 mm
for angle = 45°C

FC.../FH.../FD... 160 & 190

FC.../FH.../FD... 160 & 190 with centrifugal fans

Sling length = 2700 mm

for angle = 45°C

Sling length = 2320 mm
for angle = 45°C

FG... 160 & 190

FG... 160 & 190 with centrifugal fans

Sling length = 3000 mm

for angle = 45°C

Figure 3 for all handling drawings - pages 7 to11

IOM / ROOF-TOP FLEXY™ Series - Page 11

1

1

2

TRANSPORT - HANDLING

FX 25 & 30

Sling length 1 = 3000 mm
Sling length 2 = 2350 mm

1

1

2

FX 35 - 40 - 55

Sling length 1 = 3700 mm
Sling length 2 = 2850 mm

1

1

2

Sling length 1 = 3900 mm
Sling length 2 = 3000 mm

FX 70 - 85 - 100

1

1

2

Sling length 1 = 4300 mm
Sling length 2 = 3250 mm

FX 110 - 140 - 170

Page 12 - IOM / ROOF-TOP FLEXY™ Series

PRELIMINARY CHECK

Before installing the equipment, the following items MUST be
checked :

- Is there sufficient space for the equipment?

- Is the surface on which the equipment is to be installed
sufficiently solid to withstand its weight ? A detailed
study of the frame must be made beforehand.

- Do the supply and return ductwork openings excessively
weaken the structure?

- Are there any obstructing items which could hinder the
operation of the equipment?

- Does the electrical power available correspond to the
equipment's electrical specifications?

- Is drainage provided for the condensate?

- Is there sufficient access for maintenance?

- Installation of the equipment could require different
lifting methods which may vary with each installation
(helicopter or crane). Have these been evaluated ?

- Ensure that the unit is installed in accordance with the
installation instructions and applicable codes.

- Check to ensure that the refrigerant lines do not rub
against the cabinet or against other refrigerant lines.

In general, make sure no obstacles (walls, trees or roof ledges)
are obstructing the duct connections or hindering assembly
and maintenance access.

INSTALLATION

Figure 5

INST ALLA TION REQUIREMENTS

The surface on which the equipment is to be installed must
be clean and free of any obstacles which could hinder the
flow of air to the condensers:

- Avoid uneven surfaces

- Avoid installing two units side by side or close to each
other as this may restrict the airflow to the condensers.

Before installing a packaged rooftop unit it is important to
understand :

- The direction of prevailing winds.

- The direction and position of air flows.

- The external dimensions of the unit and the dimensions
of the supply and return air connections.

- The arrangement of the doors and the space required to
open them to access the various components.

Figure 5 shows the required clearances and dimensions.

CONNECTIONS

- Ensure that all the pipework crossing walls or roofs are
secured and insulated.

- To avoid condensation problems, be sure all pipes are
insulated according to temperatures of fluids and type of
rooms.

NOTE : The AQUILUX protection sheets fitted to the finned
surfaces must be removed prior to start up.

MODELS ABCD
FC/FH/FG/FD

60

!!

!!

! 140 1400 2000 1400 2300

160 & 190 2000 2000 2000 2300
FX

25 & 30 * 1100 * 1700
35

!!

!!

! 55 * 1300 * 2300

70

!!

!!

! 100 * 1700 * 2300

110

!!

!!

! 170 * 2000 * 2300

* : according to connection

IOM / ROOF-TOP FLEXY™ Series - Page 13

2

INSTALLATION ON A ROOFMOUNTING FR AME

As levels are adjustable, observe the following
recommendations for correct installation of the equipment.

Above all, ensure that all the adjustable returns are
facing outward (1 - figure 6).
They are usually turned inside-out for transport.

Place the roof mounting frame on the trimmer beam by
first lining up the inlet and then the outlet. (2 - figure 7).

After levelling the frame, fix the surface flaps onto the
trimmer.

1

Figure 6

Figure 7

Figure 8

Page 14 - IOM / ROOF-TOP FLEXY™ Series

INSTALLATION ON A ROOFMOUNTING FR AME

When the frame is correctly positioned, it is
essential to secure the assembly with welding
seam (20 to 30 mm for every 200 mm) along
the outside, or by using an alternative method
(1 - figure 9).

Assembly joint (1 - figure 10)
Insulate the frame before installation. We recommend the minimum

application of 25 mm thick insulation.
Check that the covering is continuous and watertight (2 - figure 10).

CAUTION : To be effective, it must finsh behind the lip (3 - figure 10)

Before installing the equipment, make sure that the assembly seal is not damaged.
Once in position, the bottom of the equipment must be horizontal and against the roofcurb as shown on figure 11.

The installer must comply to local authority standards and specifications.

1

2

3

Figure 10

Figure 11

1

Figure 9

IOM / ROOF-TOP FLEXY™ Series - Page 15

INST ALLATION ON POSTS

The unit can be fitted on corner posts using the frame provided. The minimum height of the posts should be 400mm.

Figure 12

Page 16 - IOM / ROOF-TOP FLEXY™ Series

THIS WORK MUST ONLY BE CARRIED OUT
BY TRAINED REFRIGERA TION ENGINEERS

Before connecting the power :

- Ensure that the power supply between the building and
the unit meets local authority standards and that the
cable specification satisfies the start-up and operating
conditions.

- Ensure that the electrical connections in the control
panel and on the motors are secure.

- Ensure that all drive motors are secure.

- Ensure that the adjustable pulley blocks are secure and
that the belt is tensioned with the transmission correctly
aligned.

- Using the electrical wiring diagram, check the conformity
of the electrical safety devices (circuit breaker settings,
presence and rating of fuses).

At this point attach the manometers to the refrigerant circuit

Powering up the system with the unit isolating
switch

- Close the blower circuit breaker and the 24V control.

- Power up the unit by closing the isolator switch. At this
point the blower should start unless the CLIMATIC™
does not energise the contactor. In this particular case
the blower can be forced by bridging the COM and NO
wires on the connector J1 on the CLIMATIC controller.
Once the fan is running check the rotation direction.
Refer to the rotation arrow on the fan.

- The fan and other components direction of rotation is
checked during an end of line test. They should
therefore all turn in the same direction.

- If they run in the opposite direction, disconnect the
power supply to the machine at the building's mains
switch, reverse two phases of the incoming supply to the
machine and try again.

Using CLIMATIC™

- Check the voltages recorded against the rated values, in
particular on the system supply fans.

- If the readings on the fans are outside the limits, this
indicates excessive air flow which will affect the
thermodynamic performance. Refer to the "Air flow
balancing" section.

COMMISSIONING

1. Check the configuration

- You will need a KP02 maintenance controller or
CLIMALOOK with KP 14 interface.

1 Liquid crystal display
2 Raise/lower keys
3 "FILTER" Led (flashing red)
4 "ADDRESS" key
5 "MODE" key
6 "VALUE" key
7 "UNIT RUNNING" led
8 "MODE" led
9 "GENERAL ALARM" led.

- The jumpers are
factory set and the
configuration switches
are adjusted
depending on the
option selection and
the type of unit.

- Close the 24V control circuit breakers

- The CLIMATIC™ is starting. Wait for 30 seconds.

1.1 Check and adjust the factory configuration

- Reset the DAD smoke detector (if fitted)

Figure 14

Figure 13

Figure 16

Figure 15

IOM / ROOF-TOP FLEXY™ Series - Page 17

Check the setpoints on CLIMA TIC™ (LF 20).

COMMISSIONING

C0

Password technician Level 63

C98

Type of Unit Refer to configuration table LF20

C99

Type of Unit [off] Flexy [on] Linea On or OFF

C103

Humidity and enthalpy ma na g emen t Option

[off] LINEA
[on] only Flexy with Advanced Pack

C77

(Linea) Authorisation of defrost. Threshold of temperature
of refrigerant fluid ( in°C)

1.0°C for R407c

-3.0°C for R22

C79

Defrost cycle end value indicating the nr of Start-ups of the
condenser fan to signify the end of defrost

Linea set to1
Flexy set to 3

C101

Activation of all seasons control option [ON] / [OFF] if fitted

C73

All seasons control option on FLEXY -
Otherwise – unloading 50% of the compressors in cooling
mode

Set to 20.0°C for Linea
Set to 12°C for Flexy

C74

If option all seasons contr ol – shut d own condenser fans -
Otherwise - 100% unloading of compressors in cooling
mode -

Set to 12.0°C for Linea
Set to 5.0°C for Flexy

C49

Threshold of activation of the power exhaust fan according
to the position of the economiser damper (in %)

Set to 50%

C46

Number of minutes of anticipation per degrees. This allows
an anticipated start-up in the morni ng mode depending on
the outside temperature.

Set to 0

C83

Maximum usable power for electric heat (in %)

C90

Choice of operating mode for KP17 [ON] = KP17 in ON / OFF mode

C91

Identification number for the J-Bus connections

C93

Identification number for the c onne c tio ns lin k b etween
boards

C94

Number of boards linked on the bus

C95

Selection of the operating mode for KP017

C96

Selection of exchange mode for room temperature and
humidity-

C97

Selection of exchange mode for outdoor temperature and
humidity

C100

Activation of the dual-speed option for fan supply (Flexy)

C101

Activation of the all seasons control option

C102

Activation of the optimised defrost option

C05

Fault reset Set to ON

C06

Remote control, On / Off Unit Set to ON ( the unit should start)

Page 18 - IOM / ROOF-TOP FLEXY™ Series

Configuration table LF20

COMMISSIONING

F.A050 11
F.A060 12
F.A070 13
F.A085 14
F.A100 15
F.A120 16
F.A140 17
F.A160 18
F.A190 19

FXA025 20
FXA030 21
FXA035 22
FXA040 23
FXA055 24
FXA070 25
FXA085 26
FXA100 27
FXA110 28
FXA140 29
FXA170 30

F.K050 111
F.K060 112
F.K070 113
F.K085 114
F.K100 115
F.K120 116
F.K140 117
F.K160 118
F.K190 119

FXK025 120
FXK030 121
FXK035 122
FXK040 123
FXK055 124
FXK070 125
FXK085 126
FXK100 127
FXK110 128
FXK140 129
FXK170 130

Switches on KP01

1 = on .......................Option : pressure pick-up on air 500 pa (on FLEXY™ off = sensor 1000 pa)

2 = on | 3 = off ...................Option : hot water coil

2 = off | 3 = on ...................Option : electrical heater

2 = on | 3 = on ...................Option : gas burner

4 = on .......................Option : cycle reversing valve, compressors (heat pump)

5 = on .......................Option : heating of great power / or / pump (except freezing of the hot water coil)

6 = on .......................Option : fresh air, economiser

7 = on .......................Option : fresh air, all fresh air

8 = on .......................Option : KP02 / KP17

POWERING THE UNIT

- Power up the unit by closing the isolator switch (if fitted).

- Close all circuit breakers and power up the unit, remove
the bridge on connector J14 if fitted.

- If now only one of the components rotates in the wrong
direction, disconnect the power supply at the machine's
isolator switch (if fitted) and reverse two of the
component's phases on the terminal within the electrical
panel.

- Check the current drawn against the rated values, in
particular on the supply fan.

- If the readings on the fan are outside the specified limits,
this usually indicates excessive air flow which will affect
the life expectancy and the thermodynamic performan­ces of the unit. This will also increase the risks of water
ingress into the unit. Refer to the "air flow balancing"
section to correct the problem.

At this point attach the manometers to the refrigerant circuit.

RUN TEST

Start unit in cooling mode

Thermodynamic readings using manometers and prevailing
environmental conditions.
No rated values are given here. These depend on the
environmental conditions both outside and inside the building
during operation. However, an experienced refrigeration
engineer will be able to detect any abnormal machine
operation.

Safety test

- "Dirty filter" detection test : vary the set-point value in
respect to the air pressure value. Observe the response
of the CLIMA TIC™.

- Same procedure for detecting "Missing filter" or "Air flow
detection".

- Check the smoke detection function (if fitted).

- Check the Firestat by pressing the test button(if fitted).

- Disconnect the circuit breakers of the outdoor fans and
check the high pressure cut-out points on different
refrigerant circuits.

Reverse cycle test

This test is designed to check the good operation of the 4­way reversing valves on heat pump reversible systems. Start
the reverse cycle by adjusting the cold or hot temperature
threshold data according to the indoor and outdoor conditions
at the time of test.

IOM / ROOF-TOP FLEXY™ Series - Page 19

COMMISSIONING report

(4) SUPPLY BLOWER SECTION / VE NT ILATION TRAITEMENT

Type / Type:
Power displayed on plate / Puissance affichée sur la plaque:
Voltage displayed on plate / Tension affichée sur la plaque:
Current displayed on plate / Intensité affichée sur la plaque:

KW
V
A

N°1

……………………
……………………
……………………

N°2

……………………
……………………
……………………

Fan Type / Type de Ventilateur: Forward / Action

Backward / Réaction

Forward / Action
Backward / Réaction

Displayed Belt Length / Longueur Courroie affichée:

mm …………………… ……………………
Tension Checked/ Tension Vérifiée: Yes/Oui No/ Non Yes/Oui No/ Non
Alignment Checked / Alignement Vérifié: Yes/Oui No/ Non Yes/Oui No/ Non
Motor Pulley Dia/ Poulie Moteur Dia: DM mm …………………… ……………………

Fan Pulley Dia/ Poulie Ventilateur Dia: DP mm …………………… ……………………
Fan Speed / Vitesse rotation Ventilateur = Motor rpm x DM / DP

Averaged Measured Amps / Intensité Mesurée moyenne:

rpm

A

……………………
……………………

……………………
……………………

Shaft Mechanical Power (Refer to airflow balancing)
Puissance Mécanique à l’Arbre (Voir section réglage débit)

W …………………… ……………………
Operating point checked / Vérif. Point de fonctionnement: Yes/Oui No/ Non Yes/Oui No/ Non

Estimated Airflow / Estimation Débit d’Air

m3/h

…………………… ……………………

(5) AIRFLOW PRESS. SENSOR CHECK / VERIF. DES SECURITES PRESSOSTATS D’AIR

Measured pressure drop / Pertes de charge au pressostat

…………………………… mbar

Set Points Adjusted / Changement des consignes:
Yes/Oui No/ Non
If Yes enter new values/ Si oui noter les nouvelles consignes:

3410: ………… 3411: ………… 3412: …………

(6) EXTERNAL SENSOR CHECKS / VERIFICATION DES CAPTEURS EXTERNES

Check and record temp. in menu 2110 / Vérifier et mesurer les
températures. Dans menu 2110: Yes/Oui

No/ Non

Check electrical connections / Vérification des
connections électriques: Yes/Oui

No/ Non

100% Fresh Air / 100% Air neuf 100% return Air / 100% Air repris

Supply Temperature / Température Soufflage ………………………..°C ………………………..°C
Return Temperature / Température reprise ………………………..°C ………………………..°C
Outdoor Temperature / Température extérieure ………………………..°C ………………………..°C

(7) MIXING AIR DAMPERS CHECKS / VERIFICATIONS VOLETS DE MELANGE

Dampers open & close freely/

Volets s’ouvrent et se ferment OK

% Minimum FA:

%minimum Air Neuf:

Power exhaust checked/

Ventilateur extraction

Enthalpy s ensor(s) checked/

Control enthalpie installé

Yes/Oui No/ Non ……………..% Yes/Oui No/ Non Yes/Oui No/ Non

Site details / Informations site

Site / Site
Unit Ref/ N° Affaire
Installer/ Installateur

………………………………………

……………………………………....

………………………………………

Controller/ Contrôleur
Model/Modele
Serial No/ No Série
Refrigerant / Réfrigérant

………………………………….
……………….…………………
…………………………………
…………………………………

(1) ROO F IN S TALLATION / INSTALLATION SUR LE TOIT

Sufficient Access OK / Accès Suffisants
Yes/Oui

No/ Non

Condensate drain fitted / Drainage condensats
Installé Yes/Oui No/ Non

Roofcurb / Costière
OK Not OK/PasOK

(2) CONNECTIONS CHECK / VERIFICATIONS DE RACCORDEM ENTS

Phase check/ Vérification des Phases
Yes / Oui

No / Non

Voltage between Phases
Tension entre Phases

1 / 2
……………….

2 / 3
……………….

1 / 3
……………….

(3) CLIMATIC CONFIGURATION CHECK / VERIFIER LA CONFIGURATION CLIMATIC

CLIMATIC 50 Configured according to the Options and Specifications / CLIMATIC 50 configuré en fonction des options et des
spécifications: Yes/Oui

No/ Non

Page 20 - IOM / ROOF-TOP FLEXY™ Series

COMMISSIONING report

(8) REFRIGERATION S ECT ION / SECTION REFRIGERATION

Outdoor Fan Motor Current / Intensité Moteurs Batterie externe: Check Rotation

Motor 1 / Moteur 1 L1 ……..A L2 ……..A L3 ……A Yes/Oui No/ Non
Motor 2 / Moteur 2 L1 ……..A L2 ……..A L3 ……A Yes/Oui No/ Non

Compressor

Voltage/ Tension

Compresseur.

Motor 3 / Moteur 3 L1 ……..A L2 ……..A L3 ……A Yes/Oui No/ Non Comp1: …….. V
Motor 4 / Moteur 4 L1 ……..A L2 ……..A L3 ……A Yes/Oui No/ Non Comp2: …….. V
Motor 5 / Moteur 5 L1 ……..A L2 ……..A L3 ……A Yes/Oui No/ Non Comp3: …….. V
Motor 6 / Moteur 6 L1 ……..A L2 ……..A L3 ……A Yes/Oui No/ Non Comp4: …….. V

Compressor Amps COOLING / Intensité

Compresseur MODE FROID

Pressures & Temperatures / Pressions & températures

Temperatures / Temperatures Pressures / Pressions

Phase 1 Phase 2 Phase 3

Suction/ Asp Disch / refoul

LP/ BP HP / HP
Comp 1 …..… A …..… A …..… A ……… °C ……… °C ……… Bar ……… Bar
Comp 2 …..… A …..… A …..… A ……… °C ……… °C ……… Bar ……… Bar
Comp 3 …..… A …..… A …..… A ……… °C ……… °C ……… Bar ……… Bar

Comp 4 …..… A …..… A …..… A ……… °C ……… °C ……… Bar ……… Bar

Check Reversing valves./
Vérifier vannes d’inversion:

Valve1/Vanne1: Yes/Oui

No/ Non

Valve2/Vanne2: Yes/Oui

No/ Non

Valve3/Vanne3: Yes/Oui

No/ Non

Valve4/Vanne4: Yes/Oui

No/ Non

Compressor Amps HEATING / Intensité

Compresseur en Pompe à Chaleur

Pressures & Temperat ur es / P re ssion s & températures

Temperatures / Temperatures Pressures / Pressions

Phase 1 Phase 2 Phase 3

Suction/ Asp Disch / refoul

LP/ BP HP / HP
Comp 1 …..… A …..… A …..… A ……… °C ……… °C ……… Bar ……… Bar
Comp 2 …..… A …..… A …..… A ……… °C ……… °C ……… Bar ……… Bar
Comp 3 …..… A …..… A …..… A ……… °C ……… °C ……… Bar ……… Bar

Comp 4 …..… A …..… A …..… A ……… °C ……… °C ……… Bar ……… Bar

HP cut out / Coupure HP ……Bar LP cut out / Coupu re séc urité BP ………..…... Bar

Refrigerant charge / Charge réfrigérant C1 : ………..kg C2 : ………..kg C3 : ………..kg C4 : ………..kg

(9) ELECTRIC HEATER SECTION / SECTION RECHAUFFEUR ELECTRI Q UE

Type / Type: …………………………………………………. Serial No/ No Série.:………………………..

AMPS 1st stage (Baltic) / Intensité 1er étage (Baltic) AMPS 2nd stage (Baltic) / Intensité 2e étage (Baltic)

1 ………………. 2 ………………. 3 ………………. 1 ………………. 2 ………………. 3 ……………….

(10) HOT WATER COIL SECTION / SECTION BATTERIE EAU CHAUDE

Check Three Way Valve Movement / Vérification Mouvement Vanne trois voies: Yes/Oui No/ Non

(11) GAS HEATING SECTION / RAMPE GAZ

Gas Burner N°1 / Brûleur gaz N°1 Gas Burner N°2 / Brûleur gaz N°2

Size / Taille:

……………………….

Valve type / Type vanne:

…………………….

Size / Taille:

……………………….

Valve type / Type vanne:

…………………….

Pipe size/ tuyauterie:

Gas type / Type gas : G…….

Pipe size/ tuyauterie

Gas type / Type gas : G…….

Line press./ press. ligne :

………………………

Drop test / test pression

Yes/Oui No/ Non

line press./ press. ligne :

………………………

Drop test / test pression

Yes/Oui No/ Non

Check manifold pressure/ Pression injection:

High fire/Grande allure…….…Low fire/Petite allure………..

Check manifold pressure/ Pression injection:

High fire/Grande allure…….…... Low fire/Petite allure………..

Pressure cut out airflow press switch / Pression coupure

pressostat débit d’air : ……………………mbar /Pa

Pressure cut out airflow press switch / Pression coupure

pressostat débit d’air : ……………………mbar /Pa

Motor amps

I moteur:
……….A

Flue temp /

temp fumées

……… °C

CO2 %:

………%

CO ppm:
………%

Motor Amps

I Moteur:
……….A

Flue temp /

temp fumées

………. °C

CO2 %:

………%

CO ppm:
………%

(12) REMOTE CONTROL BMS CHECK / VERIFICATIONS BMS CONTROL A DISTANCE

Type / Type:

……………………….

Sensor type / Type Capteur:

…………………………..

KP07 KP/17 checked/ vérifiées:

Yes/Oui

No/ Non

Interconnect wiring checked:

Yes/Oui No/ Non

Comments.....................................................................................................................................................................................

.......................................................................................................................................................................................................

.......................................................................................................................................................................................................

IOM / ROOF-TOP FLEXY™ Series - Page 21

VENTILATION

BELT TENSION

On delivery, the drive belts are new and correctly tensioned. After the first 50 operating
hours check and adjust the tension. 80% of the total elongation of belts is generally
produced during the first 15 hours of operation.

Before adjusting the tension, make sure that the pulleys are correctly aligned.
To tension the belt, set the height of motor support plate by moving the plate

adjustment screws.

This recommended deflection is 16 mm per metre from centre to centre.

Check that according to the diagram below (figure 18), the following ratio remains
the same.

A (m)

= 20

P (mm)

The belts should always be replaced when :

- the disk is set to maximum,

- the belt rubber is worn or the wire is visible.

Replacement belts must have the same rated size as the ones they are replacing.
If a transmission system has several belts, they must all be from the same
manufacturing batch (compare serial numbers).

NOTE :

An under-tensioned belt will slip, heat and wear prematurely. On the other hand, if
a belt is over-tensioned, the pressure on the bearings will cause them to over-heat
and wear prematurely. Incorrect alignment will also cause the belts to wear
prematurely.

A

P

Figure 18

Figure 17

Page 22 - IOM / ROOF-TOP FLEXY™ Series

VENTILaTION : PULLEYS

MOUNTING AND ADJUSTING PULLEYS

Fan pulley removal

Remove the 2 screws and put one of them in the extraction
threaded screw.

Screw in fully. The hub and the pulley will separate from each
other.

Remove the hub and the pulley by hand without damaging
the machine.

Fan pulley installation

Clean and de-grease the shaft, hub and conical bore of the
pulley. Lubricate the screws and install the hub and pulley.
Position the screws without turning them.

Place the assembly on the shaft and screw in the screws
alternatively and evenly. Using a mallet or a hammer with a
wooden wedge, tap on the face of the hub to keep the
assembly in place. Torque the screws to 30 Nm.

Take the pulley in both hands and shake it vigorously to make
sure everything is in place.
Fill the holes with grease for protection.

NOTE : During installation, the key should never protrude out
of its groove.
After 50 operating hours, check that the screws are still in
place.

Motor pulley installation and removal

The pulley is held in position by the key and a screw located
in the groove. After unlocking, removing this screw by pulling
against the shaft spindle (if necessary, use a mallet and tap
uniformly on the hub to remove it).
To assemble, proceed in the reverse order after having
cleaned and de-greased the motor shaft and the pulley bore.

Pulleys alignment

After adjusting one or both of the pulleys, check the
transmission alignment using a ruler placed on the inner face
of the two pulleys.

NOTE : The warranty may be affected if any major modification
is made to the transmission without obtaining our agreement
beforehand.

Figure 19

Figure 20

Figure 21

IOM / ROOF-TOP FLEXY™ Series - Page 23

The actual resistance of ductwork systems is not always identical to the calculated theoretical values. To rectify this, it may be
necessary to modify the pulley and belt setting. To this effect, the motors are fitted with variable pulleys.

Measure the absorbed amps

If the absorbed amps are greater than the rated values, the ventilation system has a lower pressure drop than anticipated.
Reduce the flow by reducing the rpm. If the system resistance is significantly lower than design, there is a risk that the motor
will overheat resulting in an emergency cut out.

If the absorbed amps are lower than the rated values, your system has a higher pressure drop than anticipated. Increase the
flow by increasing the rpm. At the same time you will increase the absorbed power which may result in having to increase the
motor size.

To carry out the adjustment and to avoid a time-consuming re-start, stop the machine and if necessary lock the main switch.
First unscrew the 4 Allen screw(s) on the pulley (see figure 23).

0,5 1 1,5 2 2,5 3 3,5 4 4,5 5,0 5,5

8450 /

120

95 116 5 113,9 111,8 109,7 107,6 105,5 103,4 101,3 99,2 97,1 95,0 ­D8450 20,2 28,0 5 21,0 21,8 22,5 23,3 24,1 24,9 25,7 26,4 27,2 28,0 ­8550 /

136

110 131 5 128,9 126,8 124,7 122,6 120,5 118,4 116,3 114,2 112,1 110,0
D8550 20,6 31,2 5 21,6 22,7 23,8 24,8 25,9 26,9 28,0 29,1 30,1 31,2 ­8670

171

145 166 5 163,9 161,8 159,7 157,6 155,5 153,4 151,3 149,2 147,1 145,0 ­D8670 20,5 31,1 5 21,5 22,7 23,8 24,8 25,7 26,9 27,9 29,0 30,0 31,1 -

The easiest way to determine the fan rotation speed is to
use a tachometer. If not available the fan rpm can be
estimated using the following two methods.

1st Method with the pulley secured in place :

L

Measure the distance between the two outside faces of the
pulley.

Using table 1 the motor pulley actual diameter can be
estimated

ALLEN WRENCH 4

AIRFLOW BALANCING

Pulley
type

Pulley

external

Ø

Min Ø

/

Min dist.

Max Ø

/

Max dist.

nr of

turns
from fully
closed to

fully

open

Actual Ø (DM) or distance between faces for a given

number of turns from fully closed with SPA belt in (mm)

Figure 22

Figure 23

Page 24 - IOM / ROOF-TOP FLEXY™ Series

AIRFLOW BALANCING

2nd method when adjusting the pulley :

- Close the pulley fully and count the number of turns
from fully closed position. Using table 1 determine the
motor pulley actual diameter.

- Record the fix fan pulley diameter.(DF)

- Determine the fan speed using the following formula:

rpm

FAN

= rpm

MOTOR

x DM / D

F

Where :

rpm

MOTOR

: ....... from the motor plate or table 2

DM : ...................... from t able 1

DF: ........................ from machine

Once the pulleys are adjusted and the belt checked and
tensioned, start the fan motor and record the Amps and
Voltage between the phases :
Using the measured data and table 2

- Theoretical mechanical power at the fan shaft :

P

meca fan

=P

meca Motor

x η

Transmission

P

meca fan

=P

elec

x η

meca motor

x η

Transmission

P

meca fan

= V x I x √3 x cosϕ x η

meca motor

x η

Transmission

This formula can be approximated in this way

P

meca fan

= V x I x 1.73 x 0.85 x 0.76 x 0.9

With the fan "rpm" and the mechanical power at the fan shaft
an operating point and the supplied airflow can be estimated
using the fan curves.

CHECKING AIRFLOW AND ESP

Using the fan curves on page 25, 26, 27, the airflow, the total
pressure available (P

TOT

) and the corresponding dynamic
pressure (Pd) can now be estimated, for a specific operating
point;

The next step consist in estimating the pressure losses across
the unit.
This can be achieved using the "dirty filter pressure sensor"
and the accessories pressure drop table:
Also the pressure drop due to the duct inlet into the roof-top
unit can be taken as 20 to 30 Pa.

∆P

INT

= ∆P

filter

+ coil + P

Inlet

+ ∆P

Options

using the results from above, the external static pressure (ESP)
can then be estimated:

ESP = P

TOT

- Pd - ∆P

INT

T able 2

Motor Size Nom, Speed Cos meca motor
0,75 kW 1400 rpm 0,77 0,70
1,1 kW 1425 rpm 0,82 0,77
1,5 kW 1430 rpm 0,81 0,75
2,2 kW 1430 rpm 0,81 0,76
3,0 kW 1425 rpm 0,78 0,77
4 kW 1425 rpm 0,79 0,80
5,5 kW 1430 rpm 0,82 0,82

Economiser EU7 Hot water coil Electric heater Roofcurb Horizontal Gaz
100% open Filter S H S H Base frame Roofcurb H

SIZE Air flow (m3/h) (Pa) (Pa) (Pa) (Pa) (Pa) (Pa) (Pa) (Pa) (Pa)

Min. 10 000 4 67 12 14 5 8 10 41 22

60 Nom. 12 000 6 93 16 19 8 8 11 59 26

Max. 15 000 9 135 24 28 8 10 13 92 31

Min. 12 000 6 56 6 12 5 5 13 59 29

70 Nom. 14 000 8 73 8 16 5 5 16 80 34

Max. 18 000 12 113 13 25 8 8 22 132 47

Min. 14 000 8 73 8 16 5 8 18 44 7

85 Nom. 16 000 10 113 13 25 8 8 26 57 10

Max. 22 000 16 159 18 36 8 10 32 109 12

Min. 16 000 10 93 10 20 8 10 26 57 10

100 Nom. 20 000 14 135 15 30 10 13 32 90 12

Max. 22 000 16 159 18 36 13 15 38 109 15

Min. 18 000 12 113 13 25 10 13 32 33 29

120 Nom. 22 000 16 159 18 36 13 15 38 49 35

Max. 24 000 18 184 21 41 15 18 44 58 40

Min. 20 000 14 135 15 30 10 15 35 40 31

140 Nom. 24 000 18 184 21 41 15 18 46 58 40

Max. 25 000 19 197 22 44 15 20 50 63 43

Min. 22 000 16 87 9 18 8 8 24 49 45

160 Nom. 28 000 22 132 13 27 8 10 30 79 56

Max. 32 000 26 165 17 34 13 13 34 103 64

Min. 24 000 18 101 10 20 10 10 34 58 64

190 Nom. 33 000 27 174 18 36 13 13 41 109 77

Max. 36 000 30 201 21 41 13 15 48 130 89

Table 5.52

IOM / ROOF-TOP FLEXY™ Series - Page 25

AIRFLOW BALANCING

EXAMPLE

The unit used for this example is a FHK 060N with standard supply and return airflow configuration. It is also fitted with an
economiser and an electric heater type H.
It is fitted with a AT 18-18 fan which curve is shown on page xxx and a 2.2 kW motor.

- Motor rpm : 1430 rpm

- cos ϕ = 0.81

- Voltage = 400 V

- Current = 4,68A

P

mech fan

= V x I x

√√

√√

√ 3 x cos

ϕ ϕ

ϕ ϕ

ϕ x

ηη

ηη

η

mech motor

x

ηη

ηη

η

Transmission

= 400 x 4.68 x

√√

√√

√ 3 x 0.81 x 0.76 x 0.9 = 1,79 kW

The unit is also fitted with a transmission kit 1

- Fixed Fan pulley : 250 mm

- Motor adjustable pulley type "8450" opened 1 turn from fully closed or measured distance between pulley end plates is
21,8 mm: from table xxx it can be determined that the motor pulley has a diameter of 111,8 mm

rpm

FAN

= rpm

MOTOR

x DM / DF = 1430 x 118,2 / 250 = 640 rpm

Using the fan curve below the operating point can be located.
It can be determined that the fan is providing approximately

12 000 m3/h with a total pressure P

TOT

= 420 Pa

640

420

12

10

1.79

Hd (mmH2O)

AT 18-18

The pressure losses in the unit are the
sum of all pressure drops across the
different parts of a unit :

- Coil and filter (measured) = 105 Pa

- Options = 6 Pa for economiser and
8 Pa for electric heater H

∆P = 105 + 6 + 8 =

119 Pa

The dynamic pressure at 1200m3/h is
given at the bottom of the fan curve

Pd = 100 Pa

The external static pressure available is
therefore

ESP = P

TOT

- Pd - ∆PI

NT

= 420 - 100 - 119 = 201 Pa

Figure 24

Page 26 - IOM / ROOF-TOP FLEXY™ Series

AIRFLOW BALANCING

KIT FAN TYPE CURVE
NR PICTURE

SINGLE TWIN ON PAGE

FC/FH/FD... 060 - Standard

K1 AT 18-18 S - 34
K2 AT 18-18 S - 34
K3 AT 18-18 S - 34
K4 AT 18-18 S - 34
K5 AT 18-18 S - 34
K6 AT 18-18 S - 34
K7 AT 18-18 S - 34
K8 AT 18-18 S - 34
K9 AT 18-18 S - 34
K10 AT 18-18 S - 34
K11 AT 18-18 S - 34
K12 AT 18-18 S - 34
K13 AT 18-18 S - 34

FC/FH/FD... 070 - Standard

K1 AT 18-18 S - 34
K2 AT 18-18 S - 34
K3 AT 18-18 S - 34
K4 AT 18-18 S - 34
K5 AT 18-18 S - 34
K6 AT 18-18 S - 34
K7 AT 18-18 S - 34
K8 AT 18-18 S - 34
K9 AT 18-18 S - 34
K10 AT 18-18 S - 34

FC/FH/FD... 085 - Standard

K1 AT 15-15 G2L - 32
K2 AT 15-15 G2L - 32
K3 AT 15-15 G2L - 32
K4 AT 15-15 G2L - 32
K5 AT 15-15 G2L - 32
K6 AT 15-15 G2L - 32
K7 AT 15-15 G2L - 32
K8 AT 15-15 G2L - 32
K9 - AT 15-15 S 32
K10 AT 15-15 G2L - 32
K11 - AT 15-15 S 32
K12 AT 15-15 G2L - 32
K13 - AT 15-15 S 32

FC/FH/FD... 100 - Standard

K1 AT 15-15 G2L - 32
K2 AT 15-15 G2L - 32
K3 AT 15-15 G2L - 32
K4 AT 15-15 G2L - 32
K5 AT 15-15 G2L - 32
K6 - AT 15-15 S 32
K7 AT 15-15 G2L - 32
K8 - AT 15-15 S 32
K9 AT 15-15 G2L - 32

KIT FAN TYPE CURVE
NR PICTURE

SINGLE TWIN ON PAGE

FC/FH/FD... 120 - Standard

K1 - AT 18-18 S 34
K2 - AT 18-18 S 34
K3 - AT 18-18 S 34
K4 - AT 18-18 S 34
K5 - AT 18-18 S 34
K6 - AT 18-18 S 34
K7 - AT 18-18 S 34
K8 - AT 18-18 S 34
K9 - AT 18-18 S 34

FC/FH/FD... 140 - Standard

K1 - AT 18-18 S 34
K2 - AT 18-18 S 34
K3 - AT 18-18 S 34
K4 - AT 18-18 S 34
K5 - AT 18-18 S 34
K6 - AT 18-18 S 34
K7 - AT 18-18 S 34
K8 - AT 18-18 S 34
K9 - AT 18-18 S 34

FC/FH/FD... 160 - Standard

K1 - AT 18-18 S 34
K2 - AT 18-18 S 34
K3 - AT 18-18 S 34
K4 - AT 18-18 S 34
K5 - AT 18-18 S 34
K6 - AT 18-18 S 34
K7 - AT 18-18 S 34
K8 - AT 18-18 S 34
K9 - AT 18-18 S 34
K10 - AT 18-18 S 34

FC/FH/FD... 190 - Standard

K1 - AT 18-18 S 34
K2 - AT 18-18 S 34
K3 - AT 18-18 S 34
K4 - AT 18-18 S 34
K5 - AT 18-18 S 34
K6 - AT 18-18 S 34
K7 - AT 18-18 S 34
K8 - AT 18-18 S 34
K9 - AT 18-18 S 34
K10 - AT 18-18 S 34

IOM / ROOF-TOP FLEXY™ Series - Page 27

AIRFLOW BALANCING

KIT FAN TYPE CURVE
NR PICTURE

SINGLE TWIN ON PAGE

FC/FH/FD... 085 - Side discharge

K14 - AT 15-15 S 32
K15 - AT 15-15 S 32
K16 - AT 15-15 S 32
K17 - AT 15-15 S 32
K18 - AT 15-15 S 32
K19 - AT 15-15 S 32
K20 - AT 15-15 S 32
K21 - AT 15-15 S 32

FC/FH/FD... 100 - Side discharge

K10 - AT 15-15 S 32
K11 - AT 15-15 S 32
K12 - AT 15-15 S 32
K13 - AT 15-15 S 32
K14 - AT 15-15 S 32
K15 - AT 15-15 S 32
K16 - AT 15-15 S 32
K17 - AT 15-15 S 32
K18 - AT 15-15 S 32
K19 - AT 15-15 S 32

FC/FH/FD... 120 - Side discharge

K10 - AT 18-13 S 33
K11 - AT 18-13 S 33
K12 - AT 18-13 S 33
K13 - AT 18-13 S 33
K14 - AT 18-13 S 33
K15 - AT 18-13 S 33
K16 - AT 18-13 S 33
K17 - AT 18-13 S 33
K18 - AT 18-13 S 33

FC/FH/FD... 140 - Side discharge

K10 - AT 18-13 S 33
K11 - AT 18-13 S 33
K12 - AT 18-13 S 33
K13 - AT 18-13 S 33
K14 - AT 18-13 S 33
K15 - AT 18-13 S 33
K16 - AT 18-13 S 33
K17 - AT 18-13 S 33

Page 28 - IOM / ROOF-TOP FLEXY™ Series

AIRFLOW BALANCING

KIT FAN TYPE CURVE
NR PICTURE

SINGLE TWIN ON PAGE

FG... 060 - Gas

K1 - AT 15-15 S 32
K2 - AT 15-15 S 32
K3 - AT 15-15 S 32
K4 - AT 15-15 S 32
K5 - AT 15-15 S 32
K6 - AT 15-15 S 32
K7 - AT 15-15 S 32
K8 - AT 15-15 S 32
K9 - AT 15-15 S 32
K10 - AT 15-15 S 32

FG... 070 - Gas

K1 - AT 15-15 S 32
K2 - AT 15-15 S 32
K3 - AT 15-15 S 32
K4 - AT 15-15 S 32
K5 - AT 15-15 S 32
K6 - AT 15-15 S 32
K7 - AT 15-15 S 32
K8 - AT 15-15 S 32
K9 - AT 15-15 S 32
K10 - AT 15-15 S 32
K11 - AT 15-15 S 32

FG... 085 - Gas

K1 - AT 15-15 S 32
K2 - AT 15-15 S 32
K3 - AT 15-15 S 32
K4 - AT 15-15 S 32
K5 - ADN 325L 36
K6 - AT 15-15 S 32
K7 - ADN 325L 36
K8 - AT 15-15 S 32
K9 - AT 15-15 S 32
K10 - ADN 325L 36
K11 - ADN 325L 36

FG... 100 - Gas

K1 - AT 15-15 S 32
K2 - AT 15-15 S 32
K3 - AT 15-15 S 32
K4 - AT 15-15 S 32
K5 - ADN 325L 36
K6 - AT 15-15 S 32
K7 - AT 15-15 S 32
K8 - ADN 325L 36
K9 - AT 15-15 S 32
K10 - ADN 325L 36

KIT FAN TYPE CURVE
NR PICTURE

SINGLE TWIN ON PAGE

FG... 120 - Gas

K1 - ADN 370L 37
K2 - ADN 370L 37
K3 - ADN 370L 37
K4 - ADN 370L 37
K5 - ADN 370L 37
K6 - ADN 370L 37
K7 - ADN 370L 37
K8 - ADN 370L 37

FG... 137 - Gas

K1 - ADN 370 L 37
K2 - ADN 370 L 37
K3 - ADN 370 L 37
K4 - ADN 370 L 37
K5 - ADN 370 L 37

FG... 160 - Gas

K1 - ADN 450 L 38
K2 - ADN 450 L 38
K3 - ADN 450 L 38
K4 - ADN 450 L 38
K5 - ADN 450 L 38
K6 - ADN 450 L 38
K7 - ADN 450 L 38
K8 - ADN 450 L 38
K9 - ADN 450 L 38
K10 - ADN 450 L 38

FG... 190 - Gas

K1 - ADN 450 L 38
K2 - ADN 450 L 38
K3 - ADN 450 L 38
K4 - ADN 450 L 38
K5 - ADN 450 L 38
K6 - ADN 450 L 38
K7 - ADN 450 L 38
K8 - ADN 450 L 38
K9 - ADN 450 L 38
K10 - RDN 450 K 35

IOM / ROOF-TOP FLEXY™ Series - Page 29

AIR FLOW BALANCING

KIT FAN TYPE CURVE
NR PICTURE

SINGLE TWIN ON PAGE

FX... 025 Indoor

K1 AT 12-12 S - 31
K2 AT 12-12 S - 31
K3 AT 12-12 S - 31
K4 AT 12-12 S - 31
K5 AT 12-12 S - 31
K6 AT 12-12 S - 31
K7 AT 12-12 S - 31
K8 AT 12-12 S - 31
K9 AT 12-12 S - 31
K10 AT 12-12 S - 31

FX.. 030 Indoor

K1 AT 12-12 S - 31
K2 AT 12-12 S - 31
K3 AT 12-12 S - 31
K4 AT 12-12 S - 31
K5 AT 12-12 S - 31
K6 AT 12-12 S - 31
K7 AT 12-12 S - 31
K8 AT 12-12 S - 31
K9 AT 12-12 S - 31
K10 AT 12-12 S - 31

FX... 035 Indoor

K1 AT 15-15 S - 32
K2 AT 15-15 S - 32
K3 AT 15-15 S - 32
K4 AT 15-15 S - 32
K5 AT 15-15 S - 32
K6 AT 15-15 S - 32
K7 AT 15-15 S - 32
K8 AT 15-15 S - 32

FX... 040 Indoor

K1 AT 15-15 S - 32
K2 AT 15-15 S - 32
K3 AT 15-15 S - 32
K4 AT 15-15 S - 32
K5 AT 15-15 S - 32
K6 AT 15-15 S - 32
K7 AT 15-15 S - 32
K8 AT 15-15 S - 32
K9 AT 15-15 S - 32
K10 AT 15-15 S - 32

FX... 055 Indoor

K1 AT 15-15 S - 32
K2 AT 15-15 S - 32
K3 AT 15-15 S - 32
K4 AT 15-15 S - 32
K5 AT 15-15 S - 32
K6 AT 15-15 S - 32
K7 AT 15-15 S - 32
K8 AT 15-15 S - 32
K9 AT 15-15 S - 32
K10 AT 15-15 S - 32

KIT FAN TYPE CURVE
NR PICTURE

SINGLE TWIN ON PAGE

FX... 070 Indoor

K1 AT 18-18 S - 34
K2 AT 18-18 S - 34
K3 AT 18-18 S - 34
K4 AT 18-18 S - 34
K5 AT 18-18 S - 34
K6 AT 18-18 S - 34
K7 AT 18-18 S - 34
K8 AT 18-18 S - 34
K9 AT 18-18 S - 34
K10 AT 18-18 S - 34
K11 AT 18-18 S - 34

FX... 085 Indoor

K1 AT 18-18 S - 34
K2 AT 18-18 S - 34
K3 AT 18-18 S - 34
K4 AT 18-18 S - 34
K5 AT 18-18 S - 34
K6 AT 18-18 S - 34
K7 AT 18-18 S - 34
K8 AT 18-18 S - 34
K9 AT 18-18 S - 34

FX... 0100 Indoor

K1 AT 18-18 S - 34
K2 AT 18-18 S - 34
K3 AT 18-18 S - 34
K4 AT 18-18 S - 34
K5 AT 18-18 S - 34
K6 AT 18-18 S - 34
K7 AT 18-18 S - 34

FX... 110 Indoor

K1 - AT 18-18 S 34
K2 - AT 18-18 S 34
K3 - AT 18-18 S 34
K4 - AT 18-18 S 34
K5 - AT 18-18 S 34
K6 - AT 18-18 S 34
K7 - AT 18-18 S 34

FX... 140 Indoor

K1 - AT 18-18 S 34
K2 - AT 18-18 S 34
K3 - AT 18-18 S 34
K4 - AT 18-18 S 34
K5 - AT 18-18 S 34
K6 - AT 18-18 S 34
K7 - AT 18-18 S 34
K8 - AT 18-18 S 32

FX... 170 Indoor

K1 - AT 18-18 S 32
K2 - AT 18-18 S 32
K3 - AT 18-18 S 32
K4 - AT 18-18 S 32
K5 - AT 18-18 S 32
K6 - AT 18-18 S 32
K7 - AT 18-18 S 32

Page 30 - IOM / ROOF-TOP FLEXY™ Series

AIR FLOW BALANCING

KIT FAN TYPE CURVE
NR PICTURE

SINGLE TWIN ON PAGE

FX... 085 Outdoor

K1 AT 18-18 S - 37
K2 AT 18-18 S - 37
K3 AT 18-18 S - 37
K4 AT 18-18 S - 37
K5 AT 18-18 S - 37

FX... 100 Outdoor

K1 - AT 15-15 S 35
K2 - AT 15-15 S 35
K3 - AT 15-15 S 35
K4 - AT 15-15 S 35
K5 - AT 15-15 S 35

FX... 110 Outdoor

K1 AT 18-18 S - 37
K2 AT 18-18 S - 37
K3 AT 18-18 S - 37
K4 AT 18-18 S - 37
K5 AT 18-18 S - 37
K6 AT 18-18 S - 37

FX... 140 Outdoor

K1 AT 18-18 S - 37
K2 AT 18-18 S - 37
K3 AT 18-18 S - 37
K4 AT 18-18 S - 37
K5 AT 18-18 S - 37

FX... 170 Outdoor

K1 AT 18-18 S - 37
K2 AT 18-18 S - 37
K3 AT 18-18 S - 37
K4 AT 18-18 S - 37
K5 AT 18-18 S - 37

KIT FAN TYPE CURVE
NR PICTURE

SINGLE TWIN ON PAGE

FX... 025 Outdoor

K1 AT 12-12 S - 31
K2 AT 12-12 S - 31
K3 AT 12-12 S - 31
K4 AT 12-12 S - 31
K5 AT 12-12 S - 31
K6 AT 12-12 S - 31

FX... 030 Outdoor

K1 AT 12-12 S - 31
K2 AT 12-12 S - 31
K3 AT 12-12 S - 31
K4 AT 12-12 S - 31
K5 AT 12-12 S - 31

FX... 035 Outdoor

K1 AT 15-15 S - 32
K2 AT 15-15 S - 32
K3 AT 15-15 S - 32
K4 AT 15-15 S - 32
K5 AT 15-15 S - 32
K6 AT 15-15 S - 32
K7 AT 15-15 S - 32

FX... 040 Outdoor

K1 AT 15-15 S - 32
K2 AT 15-15 S - 32
K3 AT 15-15 S - 32
K4 AT 15-15 S - 32
K5 AT 15-15 S - 32
K6 AT 15-15 S - 32
K7 AT 15-15 S - 32

FX... 055 Outdoor

K1 AT 15-15 S - 32
K2 AT 15-15 S - 32
K3 AT 15-15 S - 32
K4 AT 15-15 S - 32
K5 AT 15-15 S - 32

FX... 070 Outdoor

K1 AT 18-18 S - 34
K2 AT 18-18 S - 34
K3 AT 18-18 S - 34
K4 AT 18-18 S - 34
K5 AT 18-18 S - 34
K6 AT 18-18 S - 34

IOM / ROOF-TOP FLEXY™ Series - Page 31

AIR FLOW BALANCING

A T 12-12 FAN

Page 32 - IOM / ROOF-TOP FLEXY™ Series

AIR FLOW BALANCING

A T 15-15 FAN

IOM / ROOF-TOP FLEXY™ Series - Page 33

AIR FLOW BALANCING

A T 18-13

Page 34 - IOM / ROOF-TOP FLEXY™ Series

AIR FLOW BALANCING

A T 18-18 FAN

IOM / ROOF-TOP FLEXY™ Series - Page 35

AIR FLOW BALANCING

RDN 450 FAN

Page 36 - IOM / ROOF-TOP FLEXY™ Series

AIR FLOW BALANCING

ADN 355 F AN

IOM / ROOF-TOP FLEXY™ Series - Page 37

AIR FLOW BALANCING

ADN 400 F AN

Page 38 - IOM / ROOF-TOP FLEXY™ Series

AIR FLOW BALANCING

ADN 450 F AN

IOM / ROOF-TOP FLEXY™ Series - Page 39

filters

The CLIMATIC™ controls the filters. Two types of problems
may occur :

1 - 004 error code (lit LED “filter”) or the following icon (for a

graphics screen - KP07) :

Item 8 on KP 17 indicates that the filters must be changed.
The unit has not stopped but the airflow is likely to be reduced
due to increased pressure drop acros the filters.

2 - 005 error code or the following icon
(for a graphics screen - KP07) :

Item 9 on KP17 indicates that the filters are out of position :
either they have been damaged or not been replaced during
maintenance. In the latter case, the unit has not stopped but
the increased flowrate may result in the motor overheating. It
is important to check the filter immediately.

FIL TER REPLACEMENT :

After opening the filter access panel, unscrew the butterfly
nuts maintaining the filter support and remove it (figure 33).

Remove the cells that are slide-mounted (figure 34).
Use the rod in the lower filter section to remove the cells at
the botton of the sliders.

Install new filters inside the sliders.

Figure 32

Figure 33

Figure 34

KP 17 DISPLAY

Page 40 - IOM / ROOF-TOP FLEXY™ Series

VENTILaTION : FANSTART OPERATION

Current protection of the Thyristor

The FANSTART will display a fault (red LED) if the current
exceeds the thyristor current limits

125A during 0.4 s

87.4A during 2 s
75A during 6 s.

62.5A during 20 s.

Start up sequence too long

A fault (red LED) will appear if after 1min20s the FANSTART
Control is not bypassed and the motor running from the mains.

Phase rotation check

If the phase rotation is incorrect the FANSTART Control will
display a fault ( Red LED). Two of the phases must then be
inverted and the start up cycle resumed.

AIR SOCK CONTROL

The use of air socks for space conditioning allows high air
volumes to be distributed at low velocity and is becoming a
common feature in many applications. To accommodate this
trend, Air-sock control is offered which allows the air socks to
be progressively filled with air on start up. FLEXY™ has been
enhanced with an electronic device to soft start the fan. It
takes up to 1 minute to go from 0% of air to full air flow.
This time can be divided in several stages :

- The aim of this first voltage input is to overcome the
resistance of the transmission (Pulleys and belts) : 0.5s
and up to 1000 rpm

- The second stage is to inflate the air sock : 5 to 30 s.
and 600 to 900 rpm

Finally the air sock is gradually pressurised during the last 5
to 30 second. The motor reaches nominal speed and the
controller is bypassed.

The motor speed control is achieve through a variation of the
supply voltage of each phase at constant frequency.

The thermal overload limit on the motor imposes a current
limitation during the acceleration stage. Hence if the selected
slope is to steep, a predefined current limit can be reached
(potentiometer adjustment) and the controller will automatically
reduce the voltage set-point accordingly. Then once the current
is back under the high current limit it carries on with the start
up cycle.

Safety

Excessive "slow down" limit

The FANSTART will display a fault (red LED) and stop the
motor, if the motor slows down excessively (voltage could
reach 0V) because of the current limitation during the
acceleration stage.

Missing phase safety

The FANSTART will display a fault (red LED) if the current in
the third phase is too low or reaches 0 Amps (Three phase
supply or motor problem)

FAN START

OFF

MOTOR OFF

Green LED = 0

Red LED = 0

MOTOR OFF

Green LED = 1

Red LED = 1

Power + Control ON

Green LED = 1

Red LED = 0

Control ON
Power OFF

PHASE

ROTATION

CHECK

T°C Fault

Thyristor

OK

INFLATION

Green LED = 1

Red LED = 0

ACCELERATION

Green LED = 1

Red LED = 0

(If current control ON)

CONTROL OFF

motor connected

to mains

NOT OK

I > I max

Speed = 0

T > 1 min20s

I < Imin

I > I max

Speed = 0

T > 1 min20s

I < Imin

Current

1

st

voltage Input to Overcome

transmission performance

Over-current limit

Air sock

Inflation
5 to 30s

Acceleration 15 to 30s

FANSTART off

Figure 35

Figure 37

IOM / ROOF-TOP FLEXY™ Series - Page 41

FX AIR FLOW BALANCING

1. Operation of the grids

- Balancing grids are installed on fresh air side in order to compensate for the higher pressure drop on the ducted return
air side.

- The aim is to avoid the pressure variations in the area to air conditioned (risk of doors opening in cinemas for example)
but also to avoid a current surge on the motor when running 100% fresh air.

- The objective is to maintain constant airflow/pressure operating conditions with the supply air, regardless of the
percentage of fresh air.

- Once adjusted the air treatment fans should not see the difference between the ducted return air and the fresh air.

2. Airside adjustment procedure for the FX with 4 dampers

- Adjust the machine with the 0% fresh air configuration, the grids are open to the maximum.

- Measure the Amps and Speed of the "treatment" fan motor. Determine the airflow and pressure using the Fan Curves.

- If the absorbed Amps are higher than the value on the motor plate, the supply and return ducts pressure drop is lower
than the requested value at the time of order. Reduce the rpm, change the Pulleys if necessary.

- Once the airflow and pressure have been checked and confirmed, measure the static pressure at the 5 following points :

1a : "Treatment " fan inlet (ex : -230 Pa)
2a : "Treatment" expansion box (ex : -210 Pa)
3a : Return air box (ex : -190 Pa)
4a : Extraction expansion box (ex : -70 Pa)
5a : Extraction fan inlet (ex : -120 Pa)

- Adjust the extraction grid to reach a pressure in 4 equal to the pressure in 2 (ex : reach -210 Pa when closing).

- Check the Amps absorbed by the extraction fan motor; It must be lower than the value on the plate otherwise reduce the
fan speed.

- Reverse the fresh air percentage: 100 % fresh air at the treatment.

- Measure the Static pressure at the same 5 points

1b : "Treatment " Fan Inlet (ex : -80 Pa)
2b : "Treatment" expansion box (ex : -50 Pa)
3b : Return air box (ex : -200 Pa)
4b : Extraction expansion box (ex : -220 Pa)
5b : Extraction fan inlet (ex : -250 Pa)

- Adjust the grid on the "treatment" side only to reach a pressure at point 2b identical to the pressure at 2a (reach -210 Pa
when closing)

- Check that the pressure measured in the extraction expansion box 5b has not changed too much compared with the
previous measurement 5a. Adjust the bypass grid to compensate any possible difference.

1

2 4

3

5

Figure 25

Page 42 - IOM / ROOF-TOP FLEXY™ Series

"Treatment" side damper

Extraction side damper

+ fresh air bypass (25% damper).

FX AIR FLOW BALANCING

Figure 27

Figure 28

Example of pressure tapping point available on
each box :

Figure 26

IOM / ROOF-TOP FLEXY™ Series - Page 43

FX AIR FLOW BALANCING

PRINCIPLE SKETCHES

10 000 m3/h

10 000 m3/h

10 000 m3/h

12 500 m3/h

2 500 m3/h

Fresh air hood

SUPPLY

air duct

RETURN

air duct

Treatment

fan

Extraction fan

EXTRACTION

air duct

Grid on damper

10 000 m3/h

10 000 m3/h

2 500 m3/h

12 500 m3/h

2 500 m3/h

10 000 m3/h

10 000 m3/h

2 500 m3/h

12 500 m3/h

0% FRESH AIR TREATMENT

100% FRESH AIR TREATMENT

CONSTANT 25% BYPASS TO EXTRACTION

Fresh air hood

Fresh air hood

RETURN

air duct

RETURN

air duct

SUPPLY

air duct

EXTRACTION

air duct

SUPPLY

air duct

EXTRACTION

air duct

Treatment

fan

Treatment

fan

Extraction

fan

Extraction

fan

Grid on damper

By pass grid

Figure 29

Figure 30

Figure 31

By pass grid

By pass grid

Page 44 - IOM / ROOF-TOP FLEXY™ Series

HOT WATER COILS

HYDRAULIC CONNECTIONS

The heating coil is connected to the isolating valves. Two
keys must be used to tighten the connections, one of the
keys maintains the valve body. Failure to use two keys may
damage the pipes and invalidates the warranty.

Proceed as follows :

- Open the stop valves and set the 3-way valve to the
intermediate position (manual position and turn the
thumbwheel to a mid position).

- Fill the hydraulic system and bleed the battery using
the air vent (figure 37).

- Check the connections for possible leaks.

- Reset the 3-way
valve to
automatic.

PROTECTION AGAINST FREEZING

1) Use glycol water

GLYCOL IS THE ONLY

EFFECTIVE PROTECTION AGAINST FREEZING

The antifreeze must protect the unit and avoid icing under
winter conditions.
Warning : monoethylene glycol-based antifreeze may
produce corrosive agents when mixed with air.

2) Drain the installation
You must ensure that the manual or automatic air vents have

been installed on all high points in the system. In order to
drain the system check that all the drain cocks have been
installed on all low points of the system.
To drain, open all the valves and remember to place the
unit in air.

A HEATING COIL FROZEN DUE TO LOW
AMBIENT CONDITIONS IS NOT COVERED BY
THE WARRANTY.

ELECTROLYTIC CORROSION

Attention is drawn to the corrosion problems resulting from
electrolytic reaction created from unbalanced earth
connections.

ANY COIL DAMAGED BY ELECTRONIC

REACTION IS NOT COVERED BY THE

WARRANTY.

Figure 37

Figure 38

IOM / ROOF-TOP FLEXY™ Series - Page 45

GAS BURNER

1. PRELIMINARY CHECKS AND VERIFI-

CA TIONS BEFORE START-UP

NOTE :
ANY WORK ON THE GAS SYSTEM MUST BE
CARRIED OUT BY QUALIFIED PERSONNEL.
THIS UNIT MUST BE INSTALLED IN
ACCORDANCE WITH LOCAL SAFETY CODES
AND REGULATIONS AND CAN ONLY BE USED IN
WELL VENTILLATED AREA.
PLEASE READ CAREFULLY THE
MANUFACTURER'S INSTRUCTIONS BEFORE
STARTING A UNIT.
BEFORE COMMISSIONING A UNIT WITH GAZ
BURNER, IT IS MANDATORY TO ENSURE THAT
THE GAZ DISTRIBUTION SYSTEM (type of gas,
available pressure…) IS COMPATIBLE WITH THE
ADJUSTMENT AND SETTINGS OF THE UNIT.

1.1 Check access and clearances around the

unit :

- Make sure one can move freely around the unit

- A one-meter clearance must be left in front of the burnt
gas exhaust chimney(s)

- Combustion air inlet and burnt gas exhaust(s) must not
be obstructed in any way.

1.2 Supply network pipe sizing

- The gas supply to a
rooftop gas unit must
be according to Sound
Engineering Practice.

- The pipe-work
connected to each
rooftop must not be
smaller than the
diameter of the
connection on the
rooftop unit.

1.3 Shut-off valve in front of each rooftop

- Make sure that a shut off isolation valve has been
installed before EACH rooftop.

- Check that the internal shut off valves in the rooftop unit
is open.

1.4 Pipe-work purging and gas static pressure
checks

- Purge the pipe-work
near the connection on
the HONEYWELL valve
for a few seconds

Standard GN 20 mbar :

Check the pressure at the
inlet of the HONEYWELL
valve.

GN 300 mbar option with pressure regulator :

Check the pressure at the regulator inlet.

Propane 37 mbar option :

Check the pressure at the inlet of the HONEYWELL valve.

Propane 148 mbar option with pressure regulation
(yellow spring) :

Check the pressure at the regulator inlet. A 10% tolerance
around the nominal pressure is acceptable.

1.5 Probes and electrodes position check

Visually check that the ionisation probe is centred in the middle
of the flame.

Check that the end of the ignition electrode is aligned with the
side of the inshot burner.

Figure 40

Figure 41

INCORRECT

CORRECT

Figure 42

Figure 43

Page 46 - IOM / ROOF-TOP FLEXY™ Series

Time in seconds
Operations
Control operation sequence

Extraction fan

Smoke extraction fan "ON"

30 to 45 seconds pre-Ventilation

Fire-up spark electrode 4s

Opening of the gas valve
"High Heat"

Flame propagation towards
the ionisation probe

If Ionisation within 5sec :
Normal running

Otherwise fault on gas
ignition control block

After 5 minutes, fault reported
on the climatic controller

GAS BURNER

2. GAS BURNER RESET

- Press the "reset" button" on the gas control block to reset the unit after a fault

3. START UP AND SET UP OF THE GAS UNIT

3.1 General operation check of the system

- Check that the centrifugal fan blower in the unit is running.

3.2 Set up

- Set the setpoint 59 and 60 to "ON". This will priorities the gas burner.

- Increase the set temperature "1" (room set point temperature) to a temperature higher than the room temperature.

3.3 Burner start up check

RESET

button

Figure 44

12345678911 233333333334444444 3344

01 901234567890123456 990 0

890 1

If incorrect sequence refer to the fault analysis table to identify the problem.

IOM / ROOF-TOP FLEXY™ Series - Page 47

GAS BURNER

Connector x14

Figure 45

Figure 46

- Standard start-up chronology

- If incorrect sequence, refer to the fault table to identify the problem.

3.4 Pressure regulator adjustment (in case of 300 mbar)

- The burner must be run in high heat mode for this check.

- Fit the tube of the "accurate" manometer on the IN pressure port of
the HONEYWELL Block after having loosened the screw by two
turns

- Check and adjust if necessary the IN pressure to 20,0 mbar (G20) or
37,0 mbar for propane (G31).

3.5 High heat injection pressure checks

- Fit the tube of the "accurate"
Manometer to the OUT port on the
HONEYWELL valve after having
loosened the screw.

- Check and adjust if necessary the
OUT pressure to 8,4 mbar (G20) or
31,4 mbar for propane (G31).

3.6 Low heat injection pressure checks

- Carefully disconnect the wire numbered 116 for the bottom gas
burner and the wire numbered 126 for the tops gas burner.

- Check and adjust if necessary the OUT pressure to 3,5 mbar (G20)
or 14 mbar for propane (G31).

3.7 Reconnect the wires 116-126

Figure 47

Figure 48

Figure 49

Figure 50 Figure 51

Page 48 - IOM / ROOF-TOP FLEXY™ Series

GAS BURNERGAS BURNER

GAS BURNERGAS BURNER

GAS BURNER

Type of Gas Category Supply pressure Low heat injection High heat injection

adjustment pressure pressure
Honeywell Valve adjustment adjustment

Natural GAZ G20 20.0 mbar 3.5 mbar 8.4 mbar
Natural GAZ G25 (Groningue) 25.0 mbar 5.0 mbar 12.3 mbar
Propane G31 (GPL) 37.0 mbar 14.0 mbar 31.4 mbar

4. Burner safety checks

4.1 Smoke extractor pressure switch test

- With the gas burner running, disconnect the flexible tube fitted to the pressure
taping on the smoke box (figure 53).

- The Flame must disappear and the fan must carry on running.

- However, NO fault will be displayed (HONEYWELL control block or
CLIMATIC™).

- After reconnecting of the tube, the burner will restart after 30 seconds of pre­ventilation.

4.2 Gas pressure switch test

- With the gas burner running, close the internal shut off valve in the rooftop.

- The burner stops completely.

- However, No fault light will be displayed on the Honeywell Control box.

- After 6 Minutes, the CLIMATIC 2 will display fault 14 or 15.

- Reset the CLIMATIC™ 2.

4.3 Ionisation probe test

- With the gas burner running, disconnect the RAJAH terminal plug.

- The flame disappears

- The fan is still running and attempting to restart the burner (restart cycle 45
seconds).

- At the end of the restart cycle the burner stops completely.

- The fault light on the HONEYWELL Block is ON.

- Manually reset the HONEYWELL controller to eliminate the fault. (Refer to

§2).

Figure 52

Figure 53

Figure 54

Then re-tighten all pressure adjustment screws.

3.8 Rating table for type of gas and corresponding adjusmtent pressure

IOM / ROOF-TOP FLEXY™ Series - Page 49

GAS BURNER

5. DISASSEMBLING THE GAS BURNER FOR MAINTE-

NANCE PURPOSE

5.1 Preliminary safety recommendations

- Isolate the unit using the main isolator

- Close off the isolating gas valve located before the unit

5.2 Disconnect the pipework. Do not discard the seals

5.3 Disassembling the gas "rail"

- Disconnect the electrical connector on the electric board EF45 or 46.

- Remove the two screws which hold the gas bar in place

- Carefully remove the gas "rail"
avoiding any damaged to the
electrodes.

5.4 Disassembling the chimneys

- Electrically disconnect the fan and remove the screws holding it in place.

- Take care not to loose any cage nuts in the smoke bos.

- Attention : check the correct position of the pressure tube used by the
extraction pressure switch.

Figure 56 Figure 57

Figure 58

Figure 59

Figure 55

Page 50 - IOM / ROOF-TOP FLEXY™ Series

HEATING : gas burner

GAS BURNER FIRE-UP SEQUENCE

Gaz low pressure switch?

Operation from control

Thermostat GAS = Closed

Supply thermostat timit ?

(Auto reset)

Gaz ignition control block signal

Extraction Fan ON

Air pressure switch ON

Backfire thermostat ON ?

Pre-ventilation 30 to 45 seconds

Fire-up Electrode 4s

Gas valve open

Ionisation 1 second after

the end of sparking ?

Gas valve remains open

Normal operation

Air press switch ON

or Backfire thermostat ?

Signal from ionisation

probe still ON?

Gas control

Valve closes

BURNER

STOPS

Gas control

Valve closes

BURNER STOPS

Fault on Gas

control block

6 minutes delay

FAULT ON CLIMATIC

YES

NO

NO

YES

YES

NO

YES

NO

NO

YES

NO

YES

IOM / ROOF-TOP FLEXY™ Series - Page 51

6.1 Fault codes 14 and 15

- Reset the CLIMATIC™ 2

- Check voltage 230V after circuit breaker QF3

- Check gas isolation shut-off valves are open

- Check gas pressure at the inlet of the gas valve. It must be > 20 mbar when the burners shut down

- Adjust the setpoints 59 and 60 to ON to priorities the burner. Increase the value of th setpoint "1" (room setpoint
temperature) to a temperature higher than room (variable 1).

- Follow the diagnostic table (see following pages).

GAS BURNERS

Check output voltage

after the control box

Check solenoid coils

on the Honeywell valve

Figure 60

Figure 61

Page 52 - IOM / ROOF-TOP FLEXY™ Series

GAS BURNERS

DIAGNOSTIC T ABLE GAS BURNER

STAGES

NORMAL

OPERATION

FAULT ACTIONS SOLUTIONS

Heating
requested

Contactors
KM21-22
engaged

Contactors do
not engage

• Check safety thermostats B29­30 in the air duct before the gas
heat exchanger

• Replace component

Contactors
KM21-22 are
engaged

Extraction fans
are running

Nothing
happens

• Check the free movement of the
fan wheel

• Check the supply temperature
limitation thermostats B45-46

• Check GAS low pressure
switches B17-18

• Check electrical connection on
the Honeywell control block
and on EF45-46 connection
boards

• Check the fan supply voltage

• Replace thermostat

• Open GAS Supply

• Replace EF 45-46 if

necessary

Extraction fan
ON

After 30
seconds: the
fire-up
electrode must
create sparks

Continuous
ventilation
without sparks
by electrode

• Check position of the fire-up
electrode (refer to preliminary
checks and verifications §1)

• Check the pressure drop at the
pressure switch : It must be
higher than 200 Pa

• Check the good operation of the
pressure switch using an
Ohmmeter and by sucking
through the tube to create a
depression.

• Check the operation the Backfire
thermostat B32-B33

• Re-position the
pressure taping
tube.(§5.d)

• Change the pressure
switch

• Reset or replace the
Thermostat

Continuous
ventilation with
sparks created
by electrode

After 2 seconds
the gas burner
fires-up

After 4 second
the GAS Burner
still not running
and Safety
shutdown by
the Honeywell
Block.

• Check injection pressure during
start-up (value for high heat)

• Check the supply voltage to the
control box (continuous voltage).
Refer to figure 61.

• Remove the control box from the
gas block. Check using an
ohmmeter the solenoid coi l of
the GAS block (4 kOhm). Refer
to figure 62

• Remove the air from the
pipe-work

• Adjust the injection
pressure to high heat
value

• Change the control box
if the GAS valve is OK.

• Change the gas valve
control

IOM / ROOF-TOP FLEXY™ Series - Page 53

GAS BURNERS

7. REQUIRE EQUIPMENT LIST

6.1 Adjustment ans
start-up

- An accurate manometer
from 0 to 3500 Pa (0 to
350 mbar) : 0.1% full
scale.
Example Ref :
DRUCK DPI 705
19, rue Maurice Pellerin
92600 Asnières.
Tel [phone].
Fax: [phone]

- A multimeter with ohmmeter and micro-amps scale
(ionisation)

- Adjustable spanner

· Tube spanner Set : 8, 9, 10, and 13.

- 1 Flat screwdriver diameter 3,4, Fillips n°1

6.2 Maintenance

- Vacuum cleaner

- Paint brush / nylon brush diameter 50

8. CHANGING GAS TYPE

8.1 Modification of the gas burner to run propane
instead of natural gas

- Disconnect electrically the GAS burner

- Disconnect GAS supply

- Remove the gas rail with the injectors

- Replace GAS Injectors (natural GAS = 2,3 mm by
Propane = 1,37 mm)

- Replace the pilot high/how (natural GAS reference
V4336A 2204 1) by the propane version (yellow
reference V4336A 2212 1).

- BE CAREFULL : DO NOT REPLACE THE PILOT SEAL,
keep the seal from the natural gas installation.

8.2 Modification of the pressure regulator (if
option 148 mbar)

- Replace the pressure regulator of neutral colour with a
YELLOW spring

- Start again all pressure adjustments (§4)

9. REGULAR MAINTENANCE

9.1 Preliminary safety recommendations

- Isolate the unit electrically

- Isolate the gas burner using the appropriate shut-off
valves

9.2 Cleaning the components

- Disconnect the gas burner electrically

- Disassemble the gas pipe-work.

- Disassemble the gas burner and remove dust using a
paintbrush and a vacuum cleaner.

9.3 Sweeping

- Disassemble the gas burner (refer to previous
paragraph)

- Disassemble the exhaust extraction fan.

- Disassemble the exhaust box

- Sweep the inside of the box using a paintbrush and a
vacuum cleaner.

- Remove the dust inside the heat exchanger tube using a
nylon brush diameter 50 and vacuum the dust away.

Figure 62

Page 54 - IOM / ROOF-TOP FLEXY™ Series

GAS BURNERS

60 KW BURNER FOR FGX 60 AND 70 MODELS

1

2

Figure 63

IOM / ROOF-TOP FLEXY™ Series - Page 55

GAS BURNER

120 KW BURNER FOR FGX 60, 70 AND 100 MODELS

1

2

3

Figure 64

Page 56 - IOM / ROOF-TOP FLEXY™ Series

180 KW BURNER FOR FGX 120 AND 140 MODELS

GAS BURNER

1

2
3

Figure 65

IOM / ROOF-TOP FLEXY™ Series - Page 57

KP17 COMFORT CONTROL DISPLAY
WIRING

Failure to install the Comfort control display with the
recommended cable may cause the display to malfunction.
The KP17 remote must be connected to the CLIMATIC™
using a 4 x 0.5 mm2 braid-screened cable.
This connection is provided through a remote interface card
which is located within the Control panel section.
Refer to the wiring section of this manual.

The CLIMATIC™ 'Comfort' control Display allows an untrained
person to easily operate a Lennox Roof-Top.
This display connects to a single Rooftop and, through the
use of the control keys, LED's and display the user can see
how the connected Rooftop is operating, wether there are any
faults, modify the comfort setpoint and override the Rooftop
operation.
If installed correctly the CLIMATIC™ "Comfort" control display
can be installed up to 1000 m away from the Rooftop unit.

DISPLAY (1 - figure 66)

In 'Automatic' operation the comfort setpoint is displayed in
the event of a fault detected on the unit an error code is
automatically displayed.

The + / - keys (2) are used to change the heating/cooling/
operating setpoints.

The LED (3) indicates the current operating mode :

- In 'Automatic' mode, i.e. in the programmed time
schedules, the LED flashes,

- In forced occupied mode, the LED is permanently on

- In forced unoccupied mode, the LED is off.

Forced Occupied Key (4)
Pressing this key will override the Automatic control and force
the unit to run in its "Occupied" mode.
Whilst in this mode the LED (3) will remain permanently on.
To return to "Automatic" mode press button (6) when the LED
(3) will flash again.

Forced Unoccupied Key (5)
If, to save energy, the installations are not used within a period
programmed for automatic use, it is possible, by pressing this
key, to force the unit into its to "unoccupied" mode. The LED
(3), which was previously flashing or lit, will now go out.

Automatic Operation Key (6)
If the system was previously set to forced occupied mode (LED
(3) lit) or forced unoccupied mode (LED (3) off), this key allows
you to return to the automatic programmed mode. The LED
will flash.

NOTE : 'Forced' modes will automatically be re-set at 00:00h

LED (7) Indicates whether the unit is operating or not.
LED (8) Indicates that the filters are dirty.

LED (9) Indicates a general fault has been detected by the
CLIMATIC™. Refer to the "Fault codes" section of this manual.

USING THE KP 17 COMFORT CONTROL DISPLAY

Figure 66

Page 58 - IOM / ROOF-TOP FLEXY™ Series

USING THE KP02 MAINTENANCE CONTROL DISPLAY

CALLOUT :

1 LIQUID CRYSTAL DISPLAY
2 RAISE/LOWER KEYS
3 "FILTER" LED (flashing red)
4 "ADDRESS" KEY
5 "MODE" KEY
6 "VALUE" KEY
7 "UNIT RUNNING" LED
8 "MODE" LED
9 "GENERAL ALARM" LED.

1 - DISPLAY FORMATS

Hour

Default display. If the display unit has been inactive for 5 minutes, this screen will automatically be displayed.

<--> 12 hours and 59 minutes

Date

<--> 8 April 1999

Variable or setpoint address

Figure 67

This display unit allows you to read and modify all the values
of the variables or setpoints of the rooftop to which it is
connected.

NOTE : If your ROOFTOP already has a KP17 Comfort display
connected (see previous section) simply disconnect it and
connect this panel to the same location, once completed re­connect the KP17. It is not necessary to switch off the power
to the CLIMATIC™ whilst the KP02/KP17 is being changed.

The dialogue with the controller is initiated by the CLIMATIC™.
If, after 3 attempts, no communication is established, a
message will be displayed signalling the problem. The unit
will then try to re-connect at regular intervals.

IOM / ROOF-TOP FLEXY™ Series - Page 59

Variable or setpoint value

Digital Values

1 <--> ON 0 <--> OFF

Temperatures
Temperatures are displayed in °C, to an accuracy of 0.1 °C

<--> -21.6 °C <--> + 105.8 °C

Pressures
Pressure is given in bars, to an accuracy of 0.1 bar.

<--> 18.3 bars

Other analog values

V aleurs displayed V alues non

displayed

Specific Displays

Software Version

When the unit is powered up, the KP02 software version number is displayed.

<--> version 1.0 (for example)

Display Test

The display can only be tested for correct operation when the unit is powered up and by pressing on the 3 keys "A", "M"
and "-" simultaneously. If the display is working correctly, the following will be displayed :

All digits are properly displayed.

Communication Error

If there is no communication between the KP02 display unit and the CPU card, the following message is displayed :

<--> "Communication problem"

USING THE KP02 MAINTENANCE CONTROL DISPLAY

Page 60 - IOM / ROOF-TOP FLEXY™ Series

USING THE KP02 MAINTENANCE CONTROL DISPLAY

2 - OPERATING MODES

The maintenance display allows for 4 modes of operation.
Key [M] allows you to move successively and in a loop from
one mode to the next.
The current mode is indicated by the status of LEDs [V] and

[C] :

Status of LEDs associated
with current mode : [V] [C]

A. The variable mode allows you to

read the values of variables lit not lit

B. The setpoint mode allows you to

change the settings not lit lit

C. The read date mode allows you to

view the time and the date not lit not lit

D. The date setting mode allows you to

change the time and the date lit lit

A : VARIABLES MODE

Pressing key [A] displays the address of the variable being
read.
To go to a higher address, press [A] while simultaneously
pressing on [+].
The address will increase slowly by pressing [+] intermittently
or more quickly by keeping your finger on the key.
To go to a lower address, proceed as above but with the [-]
key.

When the required address appears, press [V] to display the
variable value. If you do not press any key, the display will
automatically return after a minute. The variables are updated
every second.

B : SETPOINTS MODE

The setpoint address can be chosen in the same way as for
the variable address (see above).
When the address of the required setpoint appears, pressing
[V] will likewise display the current value.
To increase the setpoint press [V] while holding down the [+]
key at the same time.
The address will increase slowly by pressing [+] intermittently
or more quickly by keeping your finger on the key.
To go to a lower setpoint, proceed as above but with the [-]
key as well as the [V] key.

The new value is applied when [V] is released.

PASSWORD

Access to all the setpoints is password-protected. Enter the
password before making changes.
To do so, following the above procedure : go to address setting
n° 0 and enter the number corresponding to your password.

If the password code is correct, the following message will
appear when key [V] is released :

If the keypad has been inactive for 5 minutes, the password is
reactivated. You must therefore enter it again to continue
making changes to the setpoint values.

C : DATE READING MODE

One of the following modes

- Hour

- or date

can be chosen by pressing [A] and briefly pressing on [+] or
[-].
Pressing [V] will display the value of the data selected,
otherwise it will automatically be displayed after a minute.

D : DATE SETTING MODE

This mode allows the 6 date modes to be set :

• Hours and minutes <-->

• Day of the month <-->

• Day of the week <-->

• Month <-->

• Year <-->

In the same way as for the setpoints, the value can be
increased by simultaneously pressing on keys [V] and [+] and
they can be decreased by simultaneously pressing on [V]
and [-].

IOM / ROOF-TOP FLEXY™ Series - Page 61

USING THE KP02 MAINTENANCE CONTROL DISPLAY

Item Minimum value Maximum value

Hours and minutes 00-00H 23-59 H

Day of the month 1 31

Day of the week 1 7

Month 1 12

Year 0 99

For different types of data, the setting ranges are as follows :

Changes are only incorporated when key [A] is pressed.

NOTE : The compatibility of the value for the day of the month
is not checked when it is entered. You might therefore enter
February 31st but when you try to validate, it will be ignored
and the preceding value stored.

3 - POWER SUPPLY (LED 7 - figure 40)

When lit, the LED indicates that the machine is powered up.

4 - MODE (LED 8 - figure 40)

This LED indicates the current operating mode.
In normal mode, i.e. within the programmed schedules, the
LED flashes.
In forced day mode, the LED is permanently on and in forced
night mode, the LED is off.

5 - FILTER DIRTY (LED 3 - figure 40)

This LED indicates that the CLIMATIC™ has detected that
the filter is blocked.

6 - GENERAL FAULT (LED 9 - figure 40)

This LED indicates a general fault has been detected.
Refer to the "Fault codes" section of this manual.

Page 62 - IOM / ROOF-TOP FLEXY™ Series

USING THE KP02 MAINTENANCE CONTROL DISPLAY

LIST OF SETPOINTS (LF 20 - APRIL 2002)

1st Level

Mini. Factory Maxi.

C 000

[Kp02] Password, technician level 0 # 255

C 001

[Kp17] [Mode] Required room temperature (in °c).
This value corresponds to the middle of the dead zone - (active for
Day mode only)

C 051 21.0°C C 050

C 002

[Kp17] Forced occupied mode (Day) –
This action deactivates automatically when the clock first pass
midnight - Yellow led lit

Off Off On

C 003

[Kp17] Cancels the override of day or night modes- Yellow led
flashing

Off Off On

C 004

[Kp17] Forced unoccupied mode (Night) –
This action automatically deactivates when the cloc k pass midnight
for the second time –
Yellow led off

Off Off On

C 005

[Reset] Fault reset

Off Off On

C 006

[On / Off] Remote control, On / Off unit

Off Off On

C 007

[Kp02] Selection of the memory number for the defaults to be
visualized

1 # 5

C 008

[Kp02] [Mode] Mode selection for the visualization and the adjustment
of the setti ngs
0 = Day, 1 = Week-End,
2 = Night, 3 = not used,
4 = Morning, 5 = Midday,
6 = Evening 7 = BMS

0 # 7

C 009

[Mode] Day of the week, Start of mode - (active for the Week-End
mode)

1 # 7

C 010

[Mode] Hour, Start of mode - (active for the modes Week-End, Night,
Morning, Midday, Evening)

0 h # h 22 h

C 011

[Mode] Minute, Start of mode - (active for the modes Week-end,
Night, Morning, Midday, Evening)

0 m # m 59 m

C 012

[Mode] Day of the week, End of mode - (active for the Week-End
mode)

1 # 7

C 013

[Mode] Hour, End of mode - (active for the modes Week-End,
Morning, Midday, Evening)

0 h # h 23 h

C 014

[Mode] Minute, End of mode - (active for the modes Week-End,
Morning, Midday, Evening)

0 m # m 59 m

C 015

[Mode] Required maximum room temperature (in °c) - Cooling set
point

8.0 c # c 35.0 c

C 016

[Mode] Required minimum room temperature (in °c) - Heating set
point

8.0 c # c 35.0 c

C 017

[Mode] Selection of humidity control mode
[Off] The relative humidity set points are taken into account (in %)
[On] The absolute humidity set points are taken into account - (in
g/kg)

Off Off On

C 018

[Mode] Required maximum room relative humidity (in %) –
Dehumidification set point

0 % # % 100 %

C 019

[Mode] Required maximum room absolute humidity (in g/kg) –
Dehumidification set point

0.0 g/kg # g/kg 30.0 g/kg

C 020

[Mode] Required minimum room relative humidity (in %) –
Humidification set point

0 % # % 100 %

IOM / ROOF-TOP FLEXY™ Series - Page 63

USING THE KP02 MAINTENANCE CONTROL DISPLAY

LIST OF SETPOINTS (LF 20 - APRIL 2002) - cont'd

1st Level

Mini. Factory Maxi.

C 021

[Mode] Required minimum room absolute humidity (in g/kg) –
Humidification set point

0.0 g/kg # g/kg 30.0 g/kg

C 022

[Mode] Required minimum percentage for fresh air

0 % # % 100 %

C 023

[Mode] Stopping and running of the fan blower supply
[Off] The blower is stopped
[On] The blower is running.

Off # On

C 024

[Mode] Stopping and running of the fan blower supply in the
regulation dead zone
[Off] The blower is stopped
[On] The blower is running

Off # On

C 025

[Mode] Management of the low speed on the fan supply in the cooling
regulation zone
[Off] The fan is on high speed
[On] The fan is on low speed

Off # On

C 026

[Mode] Management of the low speed on the fan supply in the
regulation dead zone
[Off] The fan is on high speed
[On] The fan is on low speed

Off # On

C 027

[Mode] Management of the low speed on the fan supply in the
heating regulation zone
[Off] The fan is on high speed
[On] The fan is on low speed

Off # On

C 028

[Mode] Force the noise reduction mode
[On] 50% of the compressors are unloaded

Off # On

C 029

[Mode] Force the operation mode

Off # On

C 030

[Command] Force the low speed on fan blower supply

Off Off On

C 031

[Command] Force the fresh air damper in the closed position - (0%
fresh air)

Off Off On

C 032

[Command] Force the fresh air damper to its defined minimum set
point position.

Off Off On

C 033

[Command] Force fresh air damper in the fully open position - (100%
fresh air)

Off Off On

C 034

[Command] Force an unloading of the compressors

Off Off On

C 035

[Command] Force an unloading of the electric heat

Off Off On

C 036

[Command] Forced unloadi ng of :
(FLEXY™) - 50% of the compressors - 100% of electrical heat

Off Off On

C 037

[Command] Force an unloading of all refrigeration parts

Off Off On

C 038

[Command] Force an unloading of all heating parts

Off Off On

C 039

[Safety limits] Room temperature low limit (in °c) - Threshold of
activation of the safety cut-out

5.0 c 10.0 c 20.0 c

C 040

[Safety limits] Room temperature high limit (in °c) - Threshold of
activation of the safety cut-out

20.0 c 40.0 c 40.0 c

Page 64 - IOM / ROOF-TOP FLEXY™ Series

USING THE KP02 MAINTENANCE CONTROL DISPLAY

LIST OF SETPOINTS (LF 20 - APRIL 2002) - cont'd

1st Level

Mini. Factory Maxi.

C 041

[Safety limits] Room relative humidity low limit (in %) - Threshold of
activation of the safety cut-out

0 % 0 % 50 %

C 042

[Limit safety] Room absolute humidity low limit (in g/kg) - Threshold of
activation of the safety cut-out

0.0 g/kg 0.0 g/kg 30.0 g/kg

C 043

[Safety limits] Room relative humidity high limit (in %) - Threshold of
activation of the safety cut-out

50 % 100 % 100 %

C 044

[Limit safety] Room absolute humidity high limit (in g/kg) - Threshold
of activation of the safety cut-out

0.0 g/kg 30.0 g/kg 30.0 g/kg

C 045

[Anticipation function] Bottom of slope (in °c) - Limit of activation of
the function - This allows an anticipated start-up in the morning mode
depending on the outside temperature.

0.0 c 10.0 c 20.0 c

C 046

[Anticipation function] Slope - Number of minutes of anticipation per
degrees. This allows an anticipated start-up in the morning mode
depending on the outside temperature.

0 0 100

C 047

[Co²] Fresh air dampers opening threshold (in ppm)

0 ppm 1000 ppm 2000 ppm

C 048

[Co²] Fresh air dampers maximum opening limit (in ppm)

0 ppm 1500 ppm 2000 ppm

C 049

[Extraction] Threshold of activation of the power exhaust fan
according to the position of the economiser damper (in %)

0 % 10% 100 %

2nd Level

Mini. Factory Maxi.

C 050

[kp17] [Mode] Maximum limit for room temperature, Day mode (in °c)

- (active for the mode Day)

21.0 c 27.0 c 35.0 c

C 051

[kp17] [Mode] Minimum limit for room temperature, Day mode (in °c) ­(active for the mode Day)

8.0 c 17.0 c 21.0 c

C 052

[Room control] Minimum operation time for a stage (in seconds)

25 s 180 s 1800 s

C 053

[Room control] Temperature difference between the beginning and
the end of a stage of control in cooling. (in °c)

0.0 c 1.0 c 10.0 c

C 054

[Room regulation] Temperature difference between two stages of
control in cooling. (in °c)

0.1 c 1.0 c 10.0 c

C 055

[Room control] Temperature difference between the beginning and
the end of a stage of control in heating. (in °c)

0.0 c 0.5 c 10.0 c

C 056

[Room control] Temperat ure d i fference between two stages of control
in heating. (in °c)

0.1 c 0.5 c 10.0 c

C 057

[Room control] Choice of the priority for the control in heating.
[On] Hot water coil or electrical heater or gas then compressors
[Off]. Compressors then hot water coil or electrical heater or gas

Off Off On

C 058

[Supply control] Activation of the control. – The control of the supply
applies when the room temperature is in the dead zone. - This
function allows to maintain comfort with the supply air

Off Off On

C 059

[Supply control] Sampling time (in seconds)

1 s 10 s 120 s

C 060

[Supply control] Choice of the priority for the control in heating
[On] Hot water coil or electrical heater or gas then compressors
[Off] Compressors then hot water coil or electrical heater or gas

Off Off On

IOM / ROOF-TOP FLEXY™ Series - Page 65

USING THE KP02 MAINTENANCE CONTROL DISPLAY

LIST OF SETPOINTS (LF 20 - APRIL 2002) - cont'd

2nd Level

Mini. Factory Maxi.

C 061

[Humidity control] Relative humidity difference between the beginning
and the end of a stage of control in dehumidification (in %)

1 % 3 % 50 %

C 062

[Humidity control] Relative humidity difference between two stages of
control in dehumidification (in %)

1 % 3 % 50 %

C 063

[Humidity control ] Sa mpling time of the control in humidification (in
seconds)

1 s 10 s 120 s

C 064

[Humidity control] Proportional band for the control in humidification
(in %)

1 % 5 % 50 %

C 065

[Safety limit] Supply temperature low limit (in °c) - Threshold of
activation of the 1

st

level of safety.

C 066

+ 2.0 c

8.0c / 10.0 c 19.0 c

C 066

[Safety limit] Supply temperature low limit (in °c) - Threshold of
activation of the 2

nd

level of safety.

C 067

+ 2.0 c

6.0c / 8.0 c 17.0 c

C 067

[Safety limit] Supply temperature low limit (in °c) - Threshold of
activation of the 3

rd

level of safety. - Alarm threshold

5.0 c / 1.0 c 2.0c / 6.0 c 15.0 c

C 068

[Safety limit] Supply temperature high limit (in °c) - Threshold of
activation of the 1

st

level of safety

20.0 c 40.0 c 70.0 c

C 069

[Safety limit] Supply temperature high limit (in °c) - Threshold of
activation of the 2

nd

level of safety. - Alarm threshold

C 068 60.0 c 70.0 c

C 070

[Control limit] Fresh air damper - Maximum outdoor temperature limit
(in °c). - If the outdoor temperature is higher than this limit the control
in free-cooling is not authorized. - The fresh air damper is then
positioned on the minimum setting.

0.0 c 26.0 c 60.0 c

C 071

[Control limit] Fresh air damper – Minimum outdoor temperature limit
(in °c). - If the outdoor temperature is lower than this limit the control
in free-cooling is not authorized. - The fresh air damper is then
positioned on the minimum setting.

0.0 c 5.0 c 30.0 c

C 072

[Fresh air damper] Maximum allowable opening for the fresh air
damper (in %)

0 % 100 % 100 %

C 073

[Control limit]
* 1° (FLEXY) If option all seasons control - Reduction of speed of the
condenser fans - Threshold of outdoor temperature (in °c). - If the
outside temperature is lower than this threshold the condenser fans
run low speed
* 2° Otherwise – Unloading 50% of the compressors in cooling mode

- Threshold of outdoor temperature (in °c). - If the outdoor
temperature is lower than this threshold 50% of the compressors are
unloaded by the control .

-10.0 c /

10.0 c

12.0 c / 20 .0
c

30.0 c

C 074

[Control limit]
* 1° If option all seasons control – Shut down condenser fans ­Threshold of outdoor temperature (in ° c). - If the outdoor tempera ture
is lower than this threshold the condenser fans are stopped
* 2° Otherwise - Unloading 100% of compressors in cooling mode ­Threshold of outdoor temperature (in ° c). - If the outdoor tempera ture
is lower than this threshold the compressors are stopped by the
control

-10.0 c /

10.0 c

5.0 c / 12.0 c 30.0 c

C 075

[Control limit] Unloading 100% of compressors in heating mode ­Threshold of outdoor temperature (in ° c). - If the outdoor tempera ture
is lower than this threshold the compressors are not used by the
regulation

-50.0 c -20. 0 c 20.0 c

Page 66 - IOM / ROOF-TOP FLEXY™ Series

USING THE KP02 MAINTENANCE CONTROL DISPLAY

LIST OF SETPOINTS (LF 20 - APRIL 2002) - cont'd

2nd Level

Mini. Factory Maxi.

C 076

[Defrost function] Authorization of defrost - Threshold of outdoor
temperatu re (in °c)

8.0 c

10.0 c /

20.0 c

20.0 c

C 077

[Defrost function] Authorization of defrost - Threshold of temperature
of refrigerant fluid (in °c)

-10.0 c

2.0 c /

-2.0 c

6.0 c

C 078

[Defrost function] Coil icing time (in minute) - The defrost cycle starts
if the operating time of a compressor in heat pump mode reached this
value

30 m 30 m / 45 m 90 m

C 079

[Defrost function] Defrost cycle end - Value indicating the number of
start-up of the condenser fan by the pressure switch to signify the end
of the defrost cycle

1 1 / 3 5

C 080

[Safety limit] Water heat exchanger output temperature low limit (in
°c) - Threshold of activat ion o f the s afety

4.0 c 5.0 c 20.0 c

C 081

[Safety limit] Water heat exchanger output temperature high limit (in
°c) - Threshold of activat ion o f the s afety

20.0 c 45.0 c 46.0 c

C 082

[Control limit] Unloading 100% of electrical heat - Threshold of
outdoor temperature (in °c). If the outdoor temperature is higher than
this threshold electrical heat are switched off by the control

-20.0 c 10.0 c 30.0 c

C 083

[Electric heat] Maximum usable power for electric heat (in %)

0 % 100 % 100 %

C 084

[Electric heat] (FLEXY FX) All season control - Threshold of mixed air
temperature (in °c) - If the mixed air temperature is lower than this
threshold electric heat is activated

0.0 c 5.0 c 10.0 c

C 085

[Safety limit] Air flow detection - Threshold of pressure difference for
the loss of pressure detection (in pa) - If the pressure difference
across the filters is lower than this threshold the safety is activated.

0 pa 20 pa 1000 pa

C 086

[Safety limit] Clogged filter detection– Threshold of pressure
difference for the detection of clogging (in pa) - If the pressure
difference across the filters is higher than this threshold the safety is
activated

0 pa 250 pa 1000 pa

C 087

[Safety limit] Missing filter detection - Threshold of pressure
difference for the detection of missing filters (in pa) - If the pressure
difference across the filter is lower than this threshold the safety is
activated

0 pa 50 pa 1000 pa

C 088

[kp12-2] Time delay for the closing of contact n°3 (in seconds)

4 s 60 s 65535 s

C 089

[kp12-2] Time delay for the opening of the contact n°2 (in seconds)

2 s 300 s 65535 s

C 090

[kp17] Choice of operating mode –
[Off] Left button = Forcing day mode / Medium button = Cancel
forcing / Right button = Forcing night mode –
[On] Left button = Start the unit / Right button = Stop the unit

Off # On

C 091

[Configuration] Identification number for the j-bus connections

1 # 255

C 092

[BMS] Activation of the control by a computer or an automat - Mode
BMS is activated if this value is different from zero, this value is
decreased every second

0 0 65535

C 093

[Configuration] [Link] Identification number for the connections link
between boards

0 # 7

C 094

[Configuration] [Li nk] Number of boards linked on the bus

0 # 8

IOM / ROOF-TOP FLEXY™ Series - Page 67

USING THE KP02 MAINTENANCE CONTROL DISPLAY

LIST OF SETPOINTS (LF 20 - APRIL 2002) - cont'd

2nd Level

Mini. Factory Maxi.

C 095

[Configuration] [Link] Selection of the operating mode –
[0] Inacti ve
[1] One kp17 for several units - All information on the kp17 connected

to the master unit is communicated to the slave units

[2] One unit in standby mode - The unit with the highest address

connected to the bus is stopped. If a fault is detected on another
unit, the faulty unit is stopped and the standby unit is started
automatically

[3] Same as choice 2 but the standby unit is change d ever y Tuesday

at 8 o’clock

0 # 3

C 096

[Configuration] [Link] Selection of exchange mode for room
temperature and humidity
[0] Inactive
[1] The room temperature and humidity of the master unit are

communicated to the slave units

[2] The room temperature and humidity are taken as the average of

the active probes.

0 # 2

C 097

[Configuration] [Link] Selection of exchange mode for outdoor
temperature and humidity
[0] Inacti ve
[1] The outdo or tem per ature a nd humi dity of the master unit are

communicated to the slave units

[2] The outdoor temperature and humidity are taken as the average

of the active probes.

0 # 2

C 098

[Configuration] Type of unit

0 # 65535

C 099

[Configuration] Type of unit [Off] FLEXY

Off # On

C 100

[Configuration] Activation of the dual-speed option for fan supply

Off # On

C 101

[Configuration] Activation of the all seasons control option

Off # On

C 102

[Configuration] Activation of the optimised defrost option

Off # On

C 103

[Configuration] Activation of the humidity and the enthalpy
management option

Off # On

C 104

[Various] Override all set points to factory settings

Off Off On

C 105

[Various] reserved Lennox

0 0 65535

Page 68 - IOM / ROOF-TOP FLEXY™ Series

USING THE KP02 MAINTENANCE CONTROL DISPLAY

VARIABLE LIST (LF 20 - April 2002)

1st Level

V 000 [Defects] error codes
V 001 [Value] Temperature (in °c), Room, Reference value
V 002 [Value] Relative humidity (in %), Room, Reference value
V 003 [Value] Absolute humidity (in g/kg), Room, Reference value
V 004 [Value] Temperature (in °c), Outdoor, Reference value
V 005 [Value] Relative humidity (in %), Outdoor, Reference value
V 006 [Value] Absolute humidity (in g/kg), Outdoor, Reference value
V 007 [Input] Temperature (in °c), Supply
V 008 [Input] Temperature (in °c), Mixing
V 009 [Input] Temperature (in °c), Free
V 010 [Input] Temperature (in °c), Chilled water
V 011 [Input] Temperature (in °c), Compressor, n°1
V 012 [Input] Temperature (in °c), Compressor, n°2
V 013 [Input] Temperature (in °c), Compressor, n°3
V 014 [Input] Temperature (in °c), Compressor, n°4
V 015 [Input] Temperature (in °c), Condenser, n°1
V 016 [Input] Temperature (in °c), Condenser, n°2
V 017 [Input] Temperature (in °c), Condenser, n°3
V 018 [Input] Temperature (in °c), Condenser, n°4
V 019 [Input] Temperature (in °c), Water condenser, Output exchanger
V 020 [Input] Signal, Shift of the set point
V 021 [Input] Pressure (in pa), Air flow, Supply fan
V 022 [Input] Signal (in ppm), Air quality sensor, Co²
V 023 [Input] Pressure (in b), Compressor, n°1
V 024 [Input] Pressure (in b), Compressor, n°2
V 025 [Input] Pressure (in b), Compressor, n°3
V 026 [Input] Pressure (in b), Compressor, n°4
V 027 [Output] Supply fan
V 028 [Output] Supply fan, Command low speed
V 029 [Output] Extraction fan
V 030 [Output] Compressor, n°1
V 031 [Output] Compressor, n°2
V 032 [Output] Compressor, n°3
V 033 [Output] Compressor, n°4
V 034 [Output] Compressor, Cycle reversing valve, Heat pump, n°1
V 035 [Output] Compressor, Cycle reversing valve, Heat pump, n°2
V 036 [Output] Compressor, Cycle reversing valve, Heat pump, n°3
V 037 [Output] Compressor, Cycle reversing valve, Heat pump, n°4
V 038 [Output] Compressor, Hot gas injection valve
V 039 [Output] Condenser fan, Command low speed
V 040 [Output] Condenser fan, n°1
V 041 [Output] Condenser fan, n°2
V 042 [Output] Condenser fan, n°3
V 043 [Output] Condenser fan, n°4
V 044 [Output] Pump
V 045 [Output] Electrical heater, n°1, 1st level
V 046 [Output] Electrical heater, n°1, 2nd level
V 047 [Output] Electrical heater, n°2
V 048 [Output] Gas grade, n°1, 1st level
V 049 [Output] Gas grade, n°1, 2nd level
V 050 [Output] Gas grade, n°2

IOM / ROOF-TOP FLEXY™ Series - Page 69

V 051 [Output] Gas grade, Reset
V 052 [Output] Economiser, Proportional action (0-255)
V 053 [Output] Chilled water coil, Proportional action (0-255)
V 054 [Output] Hot water coil, Proportional action (0-255)
V 055 [Output] Electrical heater, Static relays, Proportional action (0-255)
V 056 [Output] Humidifier, Proportionnel action (0-255)
V 057 [Statute] supply fan

1 = ok 2 = option air flow
3 = option low speed 4 = option air flow + low speed
6 = activation of a defect 7 = activation of a defect filters
8 = ventilation nonready

V 058 [Statute] Economiser

0 = option any air recycled 1 = all fresh air
2 = option economiser 3 = option enthalpy
4 = option co² 5 = option enthalpy + co²
6 = function enthalpy activates 7 = remote command active
8 = ventilation no ready

V 059 [Statute] Chilled water coil

0 = not configured 1 = ok
8 = ventilation no ready

V 060 [Statute] Hot water coil

0 = not configured 1 = ok
8 = ventilation no ready

V 061 [Statute] Compressor, n°1

0 = not configured 1 = option cooling only
2 = option heat pump 3 = defrost in progress
5 = limit outside temperature or remote command active
6 = activation of a defect 7 = activation of a defect condenser
8 = ventilation no ready

V 062 [Statute] Compressor, n°2

0 = not configured 1 = option cooling only
2 = option heat pump 3 = defrost in progress
5 = limit outside temperature or remote command active
6 = activation of a defect 7 = activation of a defect condenser
8 = ventilation no ready

V 063 [Statute] Compressor, n°3

0 = not configured 1 = option cooling only
2 = option heat pump 3 = defrost in progress
5 = limit outside temperature or remote command active
6 = activation of a defect 7 = activation of a defect condenser
8 = ventilation no ready

V 064 [Statute] Compressor, n°4

0 = not configured 1 = option cooling only
2 = option heat pump 3 = defrost in progress
5 = limit outside temperature or remote command active
6 = activation of a defect 7 = activation of a defect condenser
8 = ventilation no ready

V 065 [Statute] Condenser

0 = not configured 1 = option air condenser
2 = option water condenser 6 = activation of a defect
8 = ventilation no ready

V 066 [Statute] Pump

0 = not configured 1 = ok
6 = activation of a defect 8 = ventilation no ready

V 067 [Statute] Electrical heater

0 = not configured 1, 2 or 3 = number of stages
4 = static relays
5 = limit outside temperature or remote command active
6 = activation of a defect 8 = ventilation no ready

USING THE KP02 MAINTENANCE CONTROL DISPLAY

Page 70 - IOM / ROOF-TOP FLEXY™ Series

V 068 [Statute] Gas grade

0 = not configured 1, 2 or 3 = number of stages
6 = activation of a defect 8 = ventilation no ready

V 069 [Statute] Humidifier

0 = not configured 1 = ok
6 = activation of a defect 8 = ventilation no ready

V 070 [Regulation] Real set point, Cooling, Room
V 071 [Regulation] Real set point, Heating, Room
V 072 [Regulation] Power-factor, Cooling, Room
V 073 [Regulation] Power-factor, Heating, Room
V 074 [Regulation] Real set point, Supply
V 075 [Regulation] Power-factor, Cooling, Supply
V 076 [Regulation] Power-factor, Heating, Supply
V 077 [Regulation] Real set point, Dehumidification, Room
V 078 [Regulation] Real set point, Humidification, Room
V 079 [Regulation] Power-factor, Dehumidification, Room
V 080 [Regulation] Power-factor, Humidification, Room
V 081 [Mode] Number of the active mode
V 082 [Function] Number of the unit in standby
V 083 [Defects] Memory, Code
V 084 [Defects] Memory, Hour
V 085 [Defects] Memory, Minute
V 086 [Defects] Memory, Day
V 087 [Defects] Memory, Month
V 088 [Information] Non-standard program
V 089 [Information] Number of version of the program

USING THE KP02 MAINTENANCE CONTROL DISPLAY

CONFIGURATION

This information is taken into account by the program after having switched off/on the CLIMATIC, and a second time for C091
and C093 setpoints.

Set point ‘Eeprom’

(KP02 C.083) Maximum percentage of power of electrical heater 1
(KP02 C.090) On = KP17 in ON/OFF mode 1
(KP02 C.091) J.Bus - Number of slave (KP06, KP07, CLIMALINK, CLIMALOOK) 2
(KP02 C.093) Link - Identification number 2
(KP02 C.094) Link - Number of connected cards 1
(KP02 C.095) Link - Functions 1
(KP02 C.096) Link - Room Temperature and Humidity 1
(KP02 C.097) Link - Outside Temperature and Humidity 1
(KP02 C.098) See tables below 1
(KP02 C.100) On = Option Bi-Speed of the blower 1
(KP02 C.101) On = Option Regulation all seasons 1
(KP02 C.102) On = Option optimised defrost 1
(KP02 C.103) On = Option Enthalpy and management of the humidity 1

IOM / ROOF-TOP FLEXY™ Series - Page 71

Configuration table LF20

USING THE KP02 MAINTENANCE CONTROL DISPLAY

Switches on KP01

1 = on .......................Option : pressure pick-up on air 500 pa (on FLEXY™ off = sensor 1000 pa)

2 = on | 3 = off ...................Option : hot water coil

2 = off | 3 = on ...................Option : electrical heater

2 = on | 3 = on ...................Option : gas burner

4 = on .......................Option : cycle reversing valve, compressors (heat pump)

5 = on .......................Option : heating of great power / or / pump (except freezing of the hot water coil)

6 = on .......................Option : fresh air, economiser

7 = on .......................Option : fresh air, all fresh air

8 = on .......................Option : KP02 / KP17

F.A050 11
F.A060 12
F.A070 13
F.A085 14
F.A100 15
F.A120 16
F.A140 17
F.A160 18
F.A190 19

FXA025 20
FXA030 21
FXA035 22
FXA040 23
FXA055 24
FXA070 25
FXA085 26
FXA100 27
FXA110 28
FXA140 29
FXA170 30

F.K050 111
F.K060 112
F.K070 113
F.K085 114
F.K100 115
F.K120 116
F.K140 117
F.K160 118
F.K190 119

FXK025 120
FXK030 121
FXK035 122
FXK040 123
FXK055 124
FXK070 125
FXK085 126
FXK100 127
FXK110 128
FXK140 129
FXK170 130

Page 72 - IOM / ROOF-TOP FLEXY™ Series

USING THE KP07 GRAPHIC CONTROL DISPLAY

This display unit allows you to operate 1 to 8 machines. The
icon and schematic display provides a vivid and user-friendly
interface.It uses a liquid crystal monochrome display, with
background lighting, consisting of 240 x 128 pixels. It has 2
LEDs and 12 keys.
The remote console must be connected to the unit using a 4 x

0.5 mm² braid-screened cable (maxi length is 1000 m ).
Plan the console electric supply in 230V/50Hz (500 mA)
On the unit, connection to the KP01 card J18 input will be
done with connection items (screws...) delivered with the
console.

ITEMS :

1 LCD SCREEN, 240x128 PIXELS, MONOCHROME,

BACKGROUND LIGHTING

2 5 KEYS FOR FIXED FUNCTIONS
3 7 "SCREEN" KEYS FOR V ARIOUS FUNCTIONS
4 "ON" LED
5 "GENERAL ALARM" LED.

The main display unit functions are as follows :

- Control of a range of interactive screens allowing access
to all information and control data.

- Continual resetting of all dynamic parameters displayed
in the various screens.

- Recording of successive status of pre-defined variables
to create analog and event histories.

A KP07 unit can be attached to more than 8 LENNOX
Rooftops, providing they have the same software.

The link between the controllers and the display is serial and
uses the JBUS protocol. After being connected, the unit tries
to establish communication with the specified machines. If,
after 3 attempts, the unit cannot communicate with the
Rooftop(s), the latter will be "disconnected". The connection
failure is displayed on the screen and recorded in the event
history. The display unit will then try to re-connect at regular
intervals.

NOTE : To adjust the screen contrast, please consult the end
of this part.

1 - SCREEN KEYS WITH VARIABLE
FUNCTIONS

(figure 68)

There are 7 keys located around the LCD screen :

The function of these keys may vary from one screen to
another and is defined on the active screen by an icon. In the
case of keys [1], [2], [3] and [4], the icon is displayed above
the key. For the 3 other keys [A], [B] and [C], the icon appears
to their left.

Each key allows you to :

- Proceed to another screen, or

- Write a value in a given variable.

Figure 68

IOM / ROOF-TOP FLEXY™ Series - Page 73

USING THE KP07 GRAPHIC CONTROL DISPLAY

2 - FIXED KEYS (FIGURE 69)

The functions of these 5 keys are fixed :

PAGE DOWN :

Moves to the next page of the same screen type.

P AGE UP :

Returns to the previous page of the same screen type.

STRUCTURE :

Returns to the first screen (showing the structure).

PREVIOUS SCREEN :

Returns to the screen previously displayed

MODIFICA TION :

Pressing on this key activates the "modification" mode
(see below).

3 - ON (LED 4 - figure 69)

When lit, it indicates that the machine is powered up.

4 - GENERAL F AULT (voyant 5 - figure 69)

This LED indicates a general fault has been detected.

5 - "MODIFICA TION" MODE

This mode allows you to change the values of all the variables
displayed on the active screen. It uses the 4 keys "1", "2", "3"
and "4" by attributing preset functions to them :

KEY / ASSOCIATED ICON

Selects the variable to be changed

Selects the number to be changed

(By pressing successively on the key the cursor will move
from digit to digit, from right to left, then the cursor remains on
the last digit of the value to be changed.)

Increases the number from 0 to 9

Confirms the current change.

Through "MODIFICATION" mode, the user is able to :

- choose the number of the controller he wishes to see
the variables of (if several LENNOX Rooftops are
attached to the same KP07 display unit),

- control the setpoints.

To exit "MODIFICATION" mode and return to the active screen,
press the "MODIFICATION" key.

Note :

- During modification, the screen is no longer updated.

- If a change is not confirmed, the variable will retain its
previous value.

CONTRAST SETTING

The display contrast can be set in "MODIFICATION" mode :

- Pressing successively on key [A] increases the contrast.

- Pressing successively on key [B] decreases the
contrast.

- Key [C] allows you to find the default contrast.

Page 74 - IOM / ROOF-TOP FLEXY™ Series

USING THE KP07 GRAPHIC CONTROL DISPLAY

GENERAL SCREEN LAYOUT

Summary

Measurements :

Humidity

Operational status :

Ventilation

Chart :

Ambient temperature

Chart :

Ambient humidity

History :

Safety & Errors

Hourmeters :

Ventilation, customer...

Operational status :

Frost

History :

Safety & Errors

Operational status :

Compressor n° 1

Operational status :

Compressor n° 2

Operational status :

Compressor n° 3

Operational status :

Compressor n° 4

Operational status :

Heaters

History :

Safety & Errors

Hourmeters :

Electrical resistance

History :

Safety & Errors

Hourmeters :

Humidifier

History :

Sécurité & défauts

Hourmeters :

Compressors

Hourmeters :

Fan. Capacitors

Measurements :

Temperatures

perational status :

Humidification

IOM / ROOF-TOP FLEXY™ Series - Page 75

USING THE KP07 GRAPHIC CONTROL DISPLAY

Settings :

Time

Settings :

On/Off

Settings :

On ; Ventilation

Settings :

Condition ; Day

Password :

Level 1

Settings :

Condition ; Weekend

Settings :

On ; Ventilation

Settings :

Condition ; Night

Settings :

On ; Ventilation

Settings:

Time

Settings :

Condition ; Morning

Settings :

On ; Ventilation

Settings :

Time

Settings :

Anticipation

Settings :

Condition ; Noon

Settings :

On ; Ventilation

Settings:

Time

Settings :

Condition ; Evening

Settings :

On ; Ventilation

Settings :

Time

Page 76 - IOM / ROOF-TOP FLEXY™ Series

USING THE KP07 GRAPHIC CONTROL DISPLAY

Settings :

On ; Ventilation

Settings :

Condition ; BMS

Settings :

Control ; Cold

Settings :

Control ; Hot

Settings :

Control. ; Dehumidification

Settings :

Control ; Humidification

Settings :

Control ; Misc.

Settings :

Limits ; Ambient

Settings :

Remote controls

Settings :

Remote controls

Settings :

Remote controls

Password :

Level 2

Settings :

Limits ; Outside

Settings :

Limits ; Blowing

Settings :

Air flow ; Filters

Settings :

Std. order ; Ambient

Settings :

Std. order ; Blowing

IOM / ROOF-TOP FLEXY™ Series - Page 77

USING THE KP07 GRAPHIC CONTROL DISPLAY

INDEX OF ICONS

Keys

Select variable to change
Select digit to change.
Increase value

Enter current change.
Go to temperature and humidity values and charts.
Go to the machine component status.
Go to various notices.
Go to room temperature chart.
Go to room humidity chart (Flexy only)
Reset errors and error meters.
Go to error history.
Go to operation hourmeters.
Go to frosting component status.
Go to compressor and condenser operational status.
Go to heating devices operational status.
Go to humidifier operational status (Flexy only)
Enter password.
Go to operational condition settings.
Go to control settings.
Go to safety settings.

Go to On/Off and Discharge settings.

Go to fan On/Off settings.
Go to anticipation settings.

Logging on

Log on password to go to settings.

Log on date and time.

Page 78 - IOM / ROOF-TOP FLEXY™ Series

USING THE KP07 GRAPHIC CONTROL DISPLAY

Sensors

Temperature sensor

Humidity sensor
Pressure sensor
Return or room data
Supply data

Outside data

Operating conditions

Operating condition: Day

Operating condition: Weekend

Operating condition: Night

Operating condition: Morning

Operating condition: Noon

Operating condition: Evening

Operating condition: BMS

Operating status

Cooling mode setting operation.
Heating mode setting operation.

Device in manual mode (prohibited under control)

/ (On / Off) Customer option

/ (On / Off) blower fan

/ (High / Low) Ventilation speed (Flexy only)

Filters

/ (On / Off) Fresh air damper.

/ (On / Off) Cold proportional valve, cold water battery

/ (On / Off) Compressor

IOM / ROOF-TOP FLEXY™ Series - Page 79

Compressor defrosting.
Compressor stopped in anti-short cycle.

/ (On / Off) Condenser

/ (On / Off) Gas grade.

Half flow gas.

/ (On / Off) Hot proportional valve, hot water valve.

/ (On / Off) Electrical heaters.

/ (On / Off) Humidifier

/ (On / Off) Dehumidification

/ (On / Off) Pump

Errors

General alarm

/ (Start / End)

Communication interrupted between unit KP07 and a CPU board.

/ (Start / End) [081][083][085][086][087][113] [123] [133] [143]

Faulty temperature sensors.

/ (Start / End) [082][084]

Faulty humidity sensors (Flexy only)

/ (Start / End) [112] [122] [132] [142]

Faulty pressure transmitters (Flexy only)

/ (Start / End) [013][022][096]

Low temperature limit.

/ (Start / End) [012][023][097]

High temperature limit.

/ (Start / End) [032]

Low humidity limit (Flexy only)

/ (Start / End) [033]

High humidity limit. (Flexy only)

/ (Start / End) [094]

Error : only applicable to customer.

USING THE KP07 GRAPHIC CONTROL DISPLAY

Page 80 - IOM / ROOF-TOP FLEXY™ Series

/ (Start / End) [091]

Faulty processing fan.

/ (Start / End) [001]

Wrong air flow.

/ (Start / End) [099]

Error smoke.

/ (Start / End) [004]

Dirty filters.

/ (Start / End) [005]

Missing filters.

/ (Start / End) [115][125][135][145]

Faulty high pressure or faulty electrical compressor.

/ (Start / End) [117][127][137][147]

Faulty low pressure compressor.

/ (Start / End) [092][093]

Faulty condensers.

/ (Start / End) [098]

Faulty water flow. (Flexy only)

/ (Start / End) [041]

Faulty pump. (Flexy only)

/ (Start / End) [011]

Faulty electrical batteries.

/ (Start / End) [014][015]

Faulty gas burner.

/ (Start / End) [031]

Faulty humidifier. (Flexy only)

USING THE KP07 GRAPHIC CONTROL DISPLAY

IOM / ROOF-TOP FLEXY™ Series - Page 81

This option is used for making a connection to the BMS only,
by a set of hard contacts.
It requires the addition of a KP05 card, if this is not already in
place, and a KP12 card.
Input connection must be by screened cable only.

Limits of relays :

• 10A – 250V with resistive load

• 4A – 250V with inductive load.

BMS VOLT FREE CONTACTS KIT

DRY CONTACT KIT FOR BMS / REMOTE SET POINT

STOP CONTROL

NIGHT CONTROL

DAY CONTROL

50% LOAD SHEDDING

HEAT LOAD SHEDDING

COLD LOAD SHEDDING

FAULT RESETTING

FILTER FAULT

TREATMENT FAN FAULT

COMPRESSOR FAULT

GAS BURNER FAULT

ELECTRICAL RESISTANCE FAULT

TOP LIMIT TEMPERATURE FAULT

BOTTOM LIMIT TEMPERATURE FAULT

HUMIDIFIER FAULT

Page 82 - IOM / ROOF-TOP FLEXY™ Series

CLIMATIC™ PARAMETERS

ON - OFF

The unit is declared On if setpoint 6 (C06) is ON.
The unit can be stopped by a remote control command by
hard contact.
On KP12 extension card - see chapter on BMS contact kit.

DEFINITION OF TIME SLOT P ARAMETERS

The CLIMATIC™ allows you to programme 5 operating zones
per day, in addition to an idle zone for the weekend.
Slot activation is :

- automatically controlled by the CLIMATIC™, if you have
defined these time parameters for each slot

- forced manually by action on the controller (instructions
02/03 and 04 for KP02).

- forced by the BMS contacts kit ( see this chapter).

- forced by the computer connection.

The five available time slots are :

WEEK-END

NIGHT

MORNING

NOON

EVENING

If none of the time slots listed above is active, the active slot
is :

DAY

A particular time slot :

BMS is activated if the unit is connected to a
computer network.

0

123456789101112131415161718192021222324

With the KP07 :

- Go directly to the screen concerning the time slot to be
modified, enter the parameters described below on the
screen (see organisation of screens in KP07chapter).

With the KP02 :

- The slot to be set up must first be defined by the 08
instruction. Enter the information below then return to
the 08 instruction to go to the next slot.

Friday 22h. Monday 8h.

IOM / ROOF-TOP FLEXY™ Series - Page 83

DESCRIPTION OF P ARAMETERS

Parameters are defined for the time slot. Select by instruction 08 setting.
0 = DAY / 1 = WEEKEND / 2 = NIGHT / 3 = unused / 4 = MORNING / 5 =MIDDAY / 6 = EVENING / 7 = BMS.

Instruction Description
09 Day of the week of start of setting . From 1 to 7, 1 = Sunday.
10 Hour of start of setting
11 Minutes for start of setting
12 Day of the end of setting
13 Hour of end of setting
14 Minutes of end of setting
15 Setpoint in heating
16 Setpoint in air conditioning
17 Defined if the hygrometry values below are taken as absolute (ON) or relative (OFF).
18 Minimum relative humidity of ambient air (%)
19 Maximum relative humidity of ambient air (%)
20 Minimum absolute humidity of ambient air (g/kg of dry air)
21 Maximum absolute humidity of ambient air (g/kg of dry air)
22 Relative value of minimum flow of new air (%)
23 Fan operation in regulation zone *. ON OFF
24 Fan operation in neutral zone*. ON OFF
25 ON, forces low speed fan operation in the cooling zone
26 ON, forces low speed fan operation in the neutral zone*.
27 ON, forces automatic low speed operation in heating zone
28 Low noise
29 Instruction used to force operation in the current setting

CLIMATIC™ PARAMETERS

* The regulation zone is defined for a temperature less than
the heating instruction or greater than the air-conditioning
instruction. The neutral zone is between these 2 values.

NOTE : The end of the night slot night is defined by the start
of the morning slot : this is why there is no need to define the
end of the night slot in the table below

Setpoint

value DAY WEEK-END NIGHT MORNING MIDDAY EVENING BMS

for KP02 = 0 = 1 = 2 = 4 = 5 = 6 = 7

9 -7-----
10 - 22 22 6 12 19 ­11 -00000-
12 -2-----
13 -6-61219-
14 -0-000-
15 23.0 30.0 30.0 23.0 23.0 23.0 23.0
16 19.0 10.0 10.0 19.0 19.0 19.0 19.0
17 Off Off Off Off Off Off Off
18 0000000
19 100 100 100 100 100 100 100
20 0.0 0.0 0.0 0.0 0.0 0.0 0.0
21 30.0 30.0 30.0 30.0 30.0 30.0 30.0
22 20 0 0 0 20 20 20
23 On On On On On On On
24 Off Off Off Off Off Off Off
25 Off Off Off Off Off Off Off
26 Off Off Off Off Off Off Off
27 Off Off Off Off Off Off Off
28 Off Off Off Off Off Off Off
29 Off Off Off Off Off Off Off

Page 84 - IOM / ROOF-TOP FLEXY™ Series

ADV ANCE ACTIV ATION OF THE MORNING
SLOT

Depending on the thermal inertia of the building or the
installation and external climatic conditions, it is possible to
advance the switch from the NIGHT slot to the MORNING
slot.

The time advanced, in minutes, is calculated using the
following formula :
Time advanced = (gradient start temperature) x inertia
coefficient

For example :

- Outside temperature 0 °C

- Gradient start temperature set to + 10 °C (i.e. below
10°C outside, you want to advance start-up)

- Inertia coefficient set to 12

- Start of Morning slot set to 8h30

In these conditions the switch to the morning slot will be
advanced by: (10 - 0) x 12 i.e. 120 min.
The installation will therefore start up at 6h30 instead of 8h30.

REGULA TION OF AMBIENT AIR

Two power factors, one for cooling (variable 72), the other for
heating (variable 73), are calculated according to the difference
in temperature between the Setpoint and the reference
temperature.
The progression of these cooling or heating power factors is
limited by the temperature hysteresis and the activation
differentials between 2 stages.
If the hysteresis value is 0, the power factor concerned is no
longer limited.
See below for setting hysteresis and activation differentials.

The power factors are periodically recalculated by the
CLIMATIC™. The integration time (setpoint 52) is adjustable.
This parameter should depend on the air agitation ratio of the
unit and temperature variations in the sector to be air
conditioned.

CLIMATIC™ PARAMETERS

ORDER OF COMPONENTS IN
REGULATION

Heating operation

Setpoint 57 =ON

Water coil or electric coil or gas ! Compressors

Setpoint 57 = OFF

Compressors ! Water coil or electric coil or gas

IOM / ROOF-TOP FLEXY™ Series - Page 85

CLIMATIC™ PARAMETERS

1

00%

75%

50%

25%

0%

Cp1

Cp2

Cp3

Cp4

Cp1

Cp2

Cp3

Cp4

Figure 79

Inversion by

setpoint 57

Differential in heating

setpoint 56

Inversion by

setpoint 57

Hysteresis in heating

setpoint 56

!

"

#

$

!

: Gas 2 + Gas 1

"

: Gas 2 + 1/2 Gas 1

#

: Gas 1

$

: 1/2 Gas 1

Cp1...Cp4 : Compressor no. 1...4

Hysteresis in air cond.

setpoint 53

Differential in air cond.

setpoint 54

Inertia

zone

Min. fresh

air

Heating

setpoint 16

Air conditioning
setpoint 15

Damper

3-way valve or
water coil

Page 86 - IOM / ROOF-TOP FLEXY™ Series

REGULA TION OF SUPPLY AIR

Supplying air regulation should be activated by setting setpoint
58 to ON.

The main aim of supplying air regulation is to maintain the
temperature of supplied air at a value close to the average of
the neutral zone, if ambient air regulation is not active.

Two power factors, one for cooling (variable 75), and the other
for heating (variable 76), are calculated according to the
difference in temperature between the setpoint and the
reference temperature.

The power factors are periodically recalculated by the
CLIMATIC™. The integration time (setpoint 59) is adjustable

ORDER OF COMPONENTS IN
REGULATION

Heating operation

Setpoint 60 =ON

Water coil or electric coil or gas ! Compressors

Setpoint 60 = OFF

Compressors ! Water coil or electric coil or gas

CLIMATIC™ PARAMETERS

BLOWING REGULA TION BY AIR DAMPER

The aim of air supplying regulation by the air damper is to
even out the temperature of supplied air to a value close to
the average of the neutral zone.
This function is not taken into account if blowing regulation is
active.

A power factor is calculated according to difference in
temperature between the setpoint and the ambient and outside
temperatures.
The progression of the power factor is limited by the maximum
percentage of fresh air (setpoint 72) if the outside temperature
is less than the minimum outside air temperature (setpoint

71).

REGULA TION IN HUMIDITY

Two power factors, one for dehumidifying (variable 79), the
other for humidifying (variable 80), are calculated according
to the difference in relative hygrometry between the setpoint
and the reference relative hygrometry.

The power factors are recalculated periodically by the
CLIMATIC™. The integration time is adjustable (setpoint 63).

REGULA TION IN DEHUMIDIFYING

Dehumidification

Hysteresis

(setpoint 69)

Hysteresis

(setpoint 69)

Activation differential
(setpoint 70)

Activation differential

(setpoint 70)

Hysteresis

(setpoint 69)

1st stage

2nd stage

3rd stage

IOM / ROOF-TOP FLEXY™ Series - Page 87

REGULA TION IN HUMIDIFYING

100%

0%

SETTING THE FRESH AIR MINIMUM

The minimum value for opening the damper to outside air can
be set by instruction (see configuration of operating zones).
This value is expressed directly as a percentage.

CO² SENSOR

Where a CO² sensor is connected to the unit, the value of the
fresh air minimum is calculated according to the CO² ratio.
The value measured by the sensor can be read in variable

17.

2000 ppm

CO2

0 ppm

100

%

Setpoint 47 defines the number of ppm up to which the fresh
air minimum is still achieved.
Setpoint 48 defines the number of ppm from which 100% fresh
air is used.

ENTHALPY FUNCTION

This function is used to control the use of the economiser
register according to air enthalpy. If the outside hygrometry is
greater than the inside hygrometry, the respective enthalpy
values are then calculated. According to the result obtained,
input of new air is optimised.

CLIMATIC™ PARAMETERS

COMPRESSOR-RELA TED FUNCTIONS

Anti-short cycle

The CLIMATIC™ provides protection of the compressors
against frequent restarts. This is why the compressors cannot
be started, even if requested to do so by regulation, unless
the time since they were last put into operation is greater than
six minutes.

Equalisation of compressor operating times (F
series)

The CLIMATIC™ program is organised to equalise
compressor operating times

Defrost function

For heat pump units and air condensation units, cycle inversion
phases are programmed for defrosting the outside coil.

Defrosting is activated depending on :

- outside temperature (limit set by setpoint 76),

- coil temperature (limit set by setpoint 77),

- with overall weighting by an icing constant (setpoint 78).

Humidity band %

setpoint 65

Setpoint 47

Setpoint 48

Page 88 - IOM / ROOF-TOP FLEXY™ Series

control interface CLIMALINK / CLIMALOOK

It is possible to connect up to 12 CLIMATIC50 with
Climalook2 or 8 rooftops equipped with CLIMATIC2 and 12
with CLIMATIC 50 when Climalook 3 or Climalink is
installed.

CLIMALINK 2

This product consist in a central unit and a communication
interface.
This unit is designed to be connected to a maximum of 12
rooftops fitted with CLIMATIC 50 controllers via a RS485
interface. A connection diagram is provided in the box.
The central unit must be installed in a dry, secured location.
Once the unit is connected and powered up, it is entirely
automatic and does not require a screen a
keyboard or a mouse. After a power failure, the central unit
must be restarted using the ON/OFF button.
To avoid this Lennox recommend to connect the central unit
to a pulsating current power outlet or "UPS". Lennox cannot
be held responsible in the event this recommendation is not
acted upon.

CLIMALOOK 2

This product is identical to the CLIMALINK 2 but it is equipped
with a 15inch TFT flat screen, a mouse and a numeric keypad

to have a local display of the installation. It can be connected
to up to 12 CL50 controller via a RS485 interface.

CLIMALOOK 3

Climalook 3 provides the same features as Climalook 2 as it
can be connected to 12 rooftops equipped with CLIMATIC 50
controller but it can also be connected to 8 rooftops fitted with
CLIMATIC2 controller and KP01 board (Flexy and Linea
already on site).

NOTE: In order to connect a unit fitted with CLIMATIC2 you
must ensure that the program version is at least LF20.
Otherwise it must be upgraded to LF20 before connection to
Climalook 3

Climalook uses the internet explorer interface for local
operation. The local operating mode is completely automatic
and does not require any configuration. Like Climalink,
Climalook can receive remote queries thanks to its internal
modem and an analogue telephone line.
Climalook and Climalink do not work with ISDN telephone lines.

NOTE : To function correctly each RTU requires an address
to be set using a KP02 (setpoint 91).
To register in the climatic the power to the climatic must be
switched off twice after entering the value.

Whenever the power is switched on it is necessary to
wait 5 minutes after the welcome page is displayed to
allow the software to fully update.

CONNECTION TO CLIMATIC2 AND KP01
BOARD

The connections between the units and the Climalink/
Climalook must be done using a double shielded pair of wire
(not supplied by Lennox) This cable must have external metal
braiding, and its cross-section must be at least 0.5mm2 with
a maximum of 1mm2

Each cable will be connected to the COM B port on the KP01
Board, and particular attention must be taken to the order of
connections. The cable coming out of the KP14 with a BD9
plug at the end will be connected to the SERIAL Port at the
back of the central unit.

Details of the
connection

KP 01 board

Led flashing during
dialogue with the PC

KP 14 interface

The cable coming out of the KP14 with a
BD9 plug at the end will be connected to
the SERIAL Port at the back of the central
unit.

IOM / ROOF-TOP FLEXY™ Series - Page 89

control interface CLIMALINK / CLIMALOOK

After the starting procedure of the Climalook 3 central unit,
the LED next to the B PORT on the CLIMATIC KP01 board
will start to flash. The CPU connects to the boards one after
the other , and so it is normal for the LED to stop flashing
occasionally.

When all the connections are established, press the on/off
button. The programs are launched automatically, and the LED
located to the right of the Com B on the CLIMATIC KP01 board
should flash.
Note the site telephone number in order to make the remote
query.

Plug for telephone link
RJ11. Cable supplied with
the unit.

CONNECTION TO CLIMATICTM 50 USING
INTERFACE 435/232

It is possible to connect up to 12 rooftops fitted with CLIMATIC
50 when using a Climalook 3.
The connections between the units and the Climalink/
Climalook must be done using a double shielded pair of wire
(not supplied by Lennox) This cable must have external metal
braiding, and its cross-section must be at least 0.5mm2 with
a maximum of 1mm2

The wires will be connected to each CLIMATIC50 485 ports
You must ensure the connection order is correct :

+ on +,

- on ­and gnd on gnd.

Note the site telephone number in order to make the remote
query

Plug for telephone link
RJ11. Cable supplied with
the unit.

The cable terminated by a
DB9 plug, coming out of the
485/232 interface will be
connected to the SERIAL
port on the Climalook
central unit

After the starting up
procedure is completed the
LED on the INTERFACE will
start flashing.

RS 485 daughter-board

Page 90 - IOM / ROOF-TOP FLEXY™ Series

control interface CLIMALINK / CLIMALOOK

SETTINGS FOR THE CONNECTIONS

Depending on the version of Windows you are running,
access the « Make new connection» function.

Click on next

Click on next

Click

Click

Enter the telephone number to which
your ClimaLook’s modem is con­nected.

Click

IOM / ROOF-TOP FLEXY™ Series - Page 91

Enter the site name

Type “Administrateur”

The modem dials the number, and then the two modems
hook up.
In the task bar next to the time display you should see the
symbol indicating connection with the remote computer.

Type “http:// Lennox” in the Address field

On some versions of Windows, a dialogue box may ask you
to enter the password again. In this case :

- for User enter Administrateur

- for password enter VISION

- leave the workgroup field empty.

You can now start Internet Explorer.

Click on Finish

The first time you log in, Windows asks you to confirm
your login identifiers:

- for User enter

Administrateur

- for password enter

VISION

- leave the workgroup field empty.

After this formality, you gain access to:

THE WELCOME PAGE

First of all you must lower the virtual keyboard window,
before choosing the language.

NOTE : To operate the program it is necessary to minimise
the virtual keyboard.
Then click on the flag corresponding to the language you want
to use.

Enter your access code and confirm. The access code 999
serves as a temporary code until you have configured your
own security code.
If your code is valid you will access the next menu. Otherwise
you remain on the same page.

There are three access levels :
1st level : use of the User, Schedule, Macro and

History pages.
2nd level : ditto, plus the Service page.
3rd level : ditto, plus the Access page.

If the local application is not functioning, it is possible you
may remain on the same page, even if your access code is
valid. In this case, it is necessary to first restart the local
central unit before continuing.

Click

Type “VISION”

control interface CLIMALINK / CLIMALOOK

Page 92 - IOM / ROOF-TOP FLEXY™ Series

control interface CLIMALINK / CLIMALOOK

This page gives you the basic information about how your
installation functions. The roof-top unit’s number corresponds
to its EPROM number.

Unit’s day and time

THE MAIN P AGE

Position the mouse on one of the units to obtain information
indicating this unit’s status.
If the unit does not exist, is not powered up, or if communication
with it is impossible, its icon disappears from the screen. The
program attemps to communicate with absent units every ten
minutes.
To access a unit’s operating details, just click on it once.
20 seconds automatic refresh on this screen.

THE USER PAGE

This is the page used most frequently. It enables you to display
and modify a number of settings on your unit.

Use the refresh function to update the values read.

Some settings are read-only, others can be modified.

Read-only setting :

Modifiable setting :

The bottom of the page displays the unit currently being
queried, and can also be used to change the unit by clicking.
This takes you to the user page for the new machine.
If the unit does not exist, is not powered up, or if communication
with it is impossible, its icon disappears from the screen. The
program attemps to communicate with absent units every ten
minutes.

It is possible modify several settings at
the same time.
The settings will only be modified if the
«submit» function is confirmed.

If your unit has - or had - a fault, it is outlined in red on the
main page. You can use the fault module to trouble-shoot:

If the fault is still present, it is displayed here :

The fault reset function is
used to clear the unit’s
errors if this is possible. If
the error persists, the fault
returns.

The clear default function is
used to reset the software
memory of defaults. It does not
erase the unit’s faults.

The colour outline around the roof-top unit and the operating
temperatures indicate the unit’s status:

Green : Operating mode,
White : Stop mode,

Orange : Night mode,

Red: Fault mode,

Discharge

temperature

Ambient

temperature

IOM / ROOF-TOP FLEXY™ Series - Page 93

The empty fields correspond to occasions when the CLIMALOOK
/ CLIMALINK unit has stopped

The menus :

THE SERVICE PAGE

The Service page is for technical users who know exactly
how to adjust air-conditioning units. It is protected by a second
level password.

The units are presented in groups, and it is possible to display
and modify several settings, as in the User page.
The settings will only be modified if the «submit» function is
confirmed.

- To access the Service page for another unit, simply click
on this unit.

- To return to the User page, click on the User menu.

- To access the Schedule page, click on the Schedule
menu.

THE SCHEDULE PAGE

This page is used to display and modify all the configuration
settings for each zone of a unit’s operating schedule.
Use the refresh function to update the values read.

In addition it is possible to copy all the displayed settings and
then paste them in another unit you have chosen.

The settings will only be modified if the «submit» function is
confirmed.

For some settings, a small icon is
displayed at the end of the line

Click on it to get a history of this setting.

+ Supply temperature / Room temperature / Outdoor air
temperature + Faults (last 10 days)

control interface CLIMALINK / CLIMALOOK

Schedule page which shows all the
set points for the different modes.

Service page or experienced user

To refresh the values

Access codes page

General History page

Macro page

Main page

Welcome page

Use the refresh function to update the values read

Page 94 - IOM / ROOF-TOP FLEXY™ Series

THE MACRO P AGE

This page enables you to modify all the units on your site in
one action.
You can choose to perform one or more actions.
Modify the value or values you want to submit.

The standard Macros are :

- Adjust the Comfort thermostat

- Set to Night mode

- Set fresh air to the minimum

- Set the time on the Climatic boards.

THE HISTORY PAGE

This page is provided in addition to the individual history you’ve
already seen in the User page. It tells you when local
communication starts and stops, and gives you the users’
access codes.

This is a read-only page. The history is automatically cleared
to ensure refreshment doesn’t take too long.
This page will also show units faults.

To create a new user : Click on name

Click on “Submit”

Select “Entire site”

control interface CLIMALINK / CLIMALOOK

THE ACCESS PAGE

This page enables users who have a third level access code
to attribute access codes to other users.
The acccess code 999 is your first access code. Remember
to delete it once you have created your own access codes.

Use the virtual keyboard on the task bar

Use the keyboard to enter the name, password (maximum of
4 digits) and the access level.

1 =use of the User, Schedule, Macro and History pages.
2 =same level, plus the Service page.
3 =same level, plus the Access page.

IOM / ROOF-TOP FLEXY™ Series - Page 95

Confirm by clicking on «Submit»

PROBLEM SOLVING

Impossible to enter your access code, you remain
on the welcome page.

Local communication has been interrupted. You must restart
the local unit.
After restarting, you must wait for 5 to 10 minutes until the unit
is ready to be queried once more.

The values read do not seem to move.

The values are not in fact refreshed automatically, and for all
the pages you must use the Refresh function to be sure you
are reading the latest values.

The keyboard has disappeared from the task bar.
Click on Start / Programs / StartUp

The local unit is not answering the phone.
The local unit is - or was - powered down, and you must press
the On/off button.
See recommendations at the beginning of the document.
The unit is not connected to a direct analogue phone line.

How to check the ClimaLink is functioning correctly after
installation :
Connect up the unit and the KP14
Connect the cables to the J18 inputs on the Climatic boards.
After a few minutes, the central unit should start its dialogue.
The LED on the Climatic board to the right of the J18 input
should flash.

If this does not happen, check the wiring.
The only way to examine the problem in more detail is to obtain
a monitor and a mouse and contact the Lennox services.

After installing a ClimaLook or ClimaLink central unit, it is vital
to perform the telephone communication tests.

Take a test telephone set and make sure you have a
connection.
Note the telephone number to which the central unit is
connected.

Connect the central unit and ask a person on the remote site
to test communication.

Obviously the central unit must be the only device installed
on the phone line. It cannot share the line with a fax or another
modem.

Reposition the keyboard in the task bar by clicking on the
minus sign in the top right-hand part of the keyboard.

control interface CLIMALINK / CLIMALOOK

Page 96 - IOM / ROOF-TOP FLEXY™ Series

ELECTRICAL DATA

The power cable should be connected to the main isolating
switch and is fed from the underside of the unit into the
electrical panel.
Refer to the general arrangement drawings in the
documentation to locate the exact entry position.

The power cable sizes must be calculated with reference to
the electrical characteristics of your machine.
We are unable to state the cross sectional area of the cable

as it is directly related to the type of cable you are using, the
distance separating the equipment from the source but also
various factors relating to the cable fitting.

In the following pages you will find references to electrical
diagrams which will allow you to select the wiring for your
equipment.
As the diagrams are valid for the entire range, they will refer
to items not included in your scope of supply.

FUNCTIONS

FCA / FCK = Cooling only unit

01020304.10506070809

10FC
11121314151617181920212223242526

Electric heater TRIAC
Hot water coil

-

-

Economiser
Extraction fan

All fresh air
Firestat
Smoke detector

Advanced control pack (FC : cooling - FH : heat pump)
Digital console KP02

Consoles KP07 or KP17
Hygiene probe
Air sock control
Dry contact kit (KP12.2)
RS232 KP14
CL06
KP07
Pump

Low ambient kit

-

­Remote set point (KP05)

KP12.3 (TCB)
KP12.4 (Adaptvision)

Climalink/Climalook

FDA / FDK = Cooling only unit

01020304.204.304.4050607

08

09

10FC
11121314151617182526 2024 23

-

-

-

Gas burner 33/60 kW
Gas burner 120 kW

Gas burner 180 kW
Economiser
Extraction fan

All fresh air
Firestat

Smoke detector
Advanced control pack (FC : cooling- FH : heat pump)
Digital console KP02
Consoles KP07 or KP17
Hygiene probe
Air sock control
Dry contact kit (KP12.2)
RS232 KP14

CL06
KP07

Low ambient kit

Remote set point (KP05)
KP12.3 (TCB)

KP12.4 (Adaptvision)
Climalink/Climalook

IOM / ROOF-TOP FLEXY™ Series - Page 97

ELECTRICAL DATA

FHA / FHK = Heat pump rooftop

Electric heater TRIAC
Hot water coil

Heat pump

­Economiser

Extraction fan
All fresh air
Firestat

Smoke detector
Advanced control pack (FC : cooling- FH : heat pump)

Digital console KP02
Consoles KP07 or KP17
Hygiene probe
Air sock control
Dry contact kit (KP12.2)
RS232 KP14
CL06
KP07

Pump
Low ambient kit

Remote set point (KP05)

Climalink/Climalook

KP12.3 (TCB)
KP12.4 (Adaptvision)

01020304.10506070809

10FH
11121314151617181920212223242526

Intelligent defrost

-

FDA / FDK = Cooling only unit

-

-

Heat pump

Gas burner 33/60 kW
Gas burner 120 kW

Gas burner 180 kW
Economiser
Extraction fan

All fresh air
Firestat

Smoke detector
Advanced control pack (FC : cooling- FH : heat pump)
Digital console KP02
Consoles KP07 or KP17
Hygiene probe
Air sock control
Dry contact kit (KP12.2)
RS232 KP14

CL06
KP07

Intelligent defrost

KP12.3 (TCB)

­Remote set point (KP05)

01020304.204.304.4050607

08

09

10FH
11121314151617182526 2124 23 20

­Low ambient kit

Climalink/Climalook

KP12.4 (Adaptvision)

Page 98 - IOM / ROOF-TOP FLEXY™ Series

ELECTRICAL DATA

FXA / FXK = Heat pump rooftop

Electric heater TRIAC
Hot water coil

Heat pump

­Economiser

-

­Firestat

Smoke detector
Advanced control pack (FC : cooling- FH : heat pump)

Digital console KP02
Consoles KP17
Hygiene probe
Air sock control
Dry contact kit (KP12.2)
RS232 KP14
CL06
KP07

-

-

Remote set point (KP05)

Climalink/Climalook

KP12.3 (TCB)
KP12.4 (Adaptvision)

01020304.10506070809

10FH
11121314151617181920212223242526

­All fresh air

DIAGRAM REFERENCE LEGEND

+A0 Climatic controller
+A1+A2 Condensation group 1 / Condensation group 2
+A3+A4 Condenser 1 /Condenser 2

-A1

-B1 External air thermostat

-B2 Smoke detection head

-B3 RC circuit

-B4-B5 Gas manifold ionisation probe

-B6-B7 Gas manifold ignition electrode

-B11 Water flow rate controller

-B13 Clogged air filter pressure switch / air flow rate

-B14 Hot water battery antifreeze thermostat

-B15 Hot water battery antifreeze thermostat

-B16 Fire thermostat

-B17-B18 Gas manifold smoke minimum gas pressure switch

-B19-B20 Blower fan motor -MS1-MS2 stoptherme

-B21-B22 Gas manifold extraction air pressure switch

-B23-B24 Extraction fan motor -ME1-ME2 stoptherme

-B25-B26 Electric battery -E1-E2 safety klixon

-B27 Electric battery -E3 safety klixon

-B29-B30 Gas manifold air flow rate safety klixon

-B32-B33 Gas manifold flashback safety klixon

-B41-B42 Compressor -MG1-MG2 high pressure safety switch

-B43-B44 Compressor -MG3-MG4 high pressure switch

-B45-B46 Gas manifold 1 / gas manifold 2 regulation klixon

-B51-B52 Compressor -MG1-MG2 low pressure safety switch

-B53-B54 Compressor-MG3-MG4 low pressure safety switch

-B61-B62 Compressor -MG1-MG2 high pressure control switch

-B63-B64 Compressor -MG3-MG4 high pressure control switch

-B71-B72 Condenser -MC1-MC2 fan motor stoptherme

-B73-B74 Condenser -MC3-MC4 fan motor stoptherme

-B81-B82 Scroll compressor -MG1-MG2 protection module

-B83-B84 Scroll compressor -MG3-MG4 protection module

-B91-B92 Pressure switch 4 / 20ma compressor -MG1-MG2

-B93-B94 Pressure switch 4 / 20ma compressor -MG3-MG4

BCD Condense battery
BEC Hot water battery
BEG Chilled water battery
BEV Evaporator battery

-BG10 Hygiene probe

-BH10 Regulation hygrometry probe

-BH11 External hygrometry probe

-BT10 Regulation temperature probe

-BT11 External temperature probe

-BT12 Blower temperature probe

-BT13 Cold water temperature probe

-BT14 Condenser 1 speed regulation temperature probe

-BT15 Condenser 2 speed regulation temperature probe

-BT16 Heat exchanger water outlet antifreeze probe

-BT17 Mixture probe

-BT21-BT22 Compressor 1-2 antifrost temperature probe

-BT23-BT24 Compressor 3-4 antifrost temperature probe

-BT25 Free temperature

-BT91-BT92 Defrost temperature sensor compressor 1-2

-BT93-BT94 Defrost temperature sensor compressor 3-4

-BTP1-2 Compressor -MG1-MG2 accumulator

-BTP3-4 Compressor -MG3-MG4 accumulator
CL06.2 JBUS
DT Thermostatic holder

-EEH Horizontal water heat exchanger
EEV Vertical water heat exchanger

-E1-E2 Heater -E1-E2

-E3 Heater -E3

-E4 Vapour humidifier -E4

-E7-E8 Antifreeze heater cords hot water battery

-E9-E10 Antifreeze heater cords

-E11 Smoke detector printed circuit

-E12 Humidifier -E4 level solenoid valve

-E13 Water leak electrode

-E14 Burner control box

-E15 Vapour humidifier -E4 printed circuit