Lennox HC30, HC50, HC60, HC70, HC40 Operating Manual

INSTALLATION
OPERATING &
MAINTENANCE MANUAL

Comfair

HC/HT

ENGLISH

MARCH 04

CONTENTS

CONTENTS1

INTRODUCTION2

RECOMMENDATIONS2

FIRST PART: FOR THE INSTALLER

TRANSPORTATION, RECEIVING, HANDLING

Safety rules3

APPLIANCE DESCRIPTION

General technical data4-5
Main parts6

INSTALLATION

Recommendations for installation7
Fan coil installation7-8
Installation of the white pre-enamelled sheet metal panel (version 7)9
Installation of the white pre-enamelled sheet metal panel (version 2 and 3)10
Installation of the white lacquered wood panel11

WATER CONNECTIONS

Connection to the water mains12
Condensate water drainage12

ELECTRICAL CONNECTIONS

Recommendations
Connections to the terminal block: housing without control panel13
Connections to the terminal block: housing with control panel14
Changing the motor speeds of rotation14

TESTING14

TURNING THE COIL15

SECOND PART: FOR THE USER

USING THE APPLIANCE

Warnings16
Using the control panel17

CLEANING THE APPLIANCE

Cleaning the air filter18
Cleaning the housing and the control panel19

TROUBLESHOOTING20

DISMANTLING THE APPLIANCE20

INSTALLATION - OPERATING & MAINTENANCE MANUAL

Page 1

INTRODUCTION

This installation, operation and maintenance booklet should always accompany the fan coil for ready consultation by
the installer or user if necessary.
The appliance should be installed in compliance with the regulations in force in each country and according to the
manufacturer's or qualified installer's instructions.
The manufacturer cannot be held liable for any damage to property or injury to persons and animals caused by incorrect
installation of the appliance.
Only qualified persons should install the appliance and connect it to the mains electricity supply.
Before carrying out any work on the appliance, ensure that it is disconnected from the electricity supply.
Read this instruction booklet before installing the appliance.

RECOMMENDATIONS

The appliance is easy to use, but it is important to read this guide completely before using for the first time. This will
help you to:

- use the appliance in all safety;

- obtain best performance;

- avoid errors;

- respect the environment:
Do not allow children or unassisted handicapped persons to use the appliance.
Do not touch the appliance with wet parts of the body or if barefoot.
Do not tug, pull or twist electrical cables attached to the appliance, even when disconnected from the electricity supply.
Do not open the flaps giving access to the internal parts of the appliance without having first put the system on-off
switch to "off".
Do not introduce sharp pointed objects through the air intake and outlet grilles.
Do not leave packing material (cardboard, staples, plastic bags, etc.) within reach of children since they could be a
source of danger. Dispose of correctly.
Do not sit or climb on the appliance or rest any type of object on it.
Do not spray or throw water directly on the appliance.
Do not use the appliance in places with suspended dust/powder or in potentially explosive atmospheres, in very damp
environments or in the presence of oil in suspension or in particularly aggressive atmospheres.
Do not cover the appliance with objects or drapes that even partially obstruct the air flow.

The appliance works by electricity at mains voltage (230 Vac, 50 Hz). Always bear in mind that mains voltage is
potentially dangerous and any appliance connected to it should be used with caution. Before carrying out any work
on the appliance, disconnect it from the electricity supply (by pulling out the plug from the mains socket or isolating
the supply line by putting the on-off switch to off).
If the appliance is not to be used for long periods, make sure that the controls are in the position 0 (off). If the appliance
is not going to be used in winter when temperatures are near to freezing, drain the system and ensure that the appliance
heat exchanger has no water in it in order to prevent the formation of ice and consequent breakage.
To make the appliance inoperable, disconnect it totally from the electricity supply.
It is unsafe to alter or try to alter the characteristics of this product. Any tampering or alteration renders the warranty
null and void.
In the event of malfunction or failure, do not try to repair the appliance yourself; contact a qualified technician. Repairs
carried out by unqualified persons could cause damage or accidents.
Always keep the appliance clean. In particular clean the air filter periodically (at least once a month).

FAILURE TO COMPLY WITH THE ASSEMBLY INSTRUCTIONS GIVEN IN THIS

GUIDE RELIEVES LENNOX OF ALL AND ANY LIABILITY. INCORRECT

INSTALLATION COULD CAUSE MALFUNCTIONING OR FAILURE OF THE

APPLIANCE. IT COULD ALSO REPRESENT A HAZARD FOR THE USER.

!

INSTALLATION - OPERATING & MAINTENANCE MANUAL

Page 2

TRANSPORTATION, RECEIVING, HANDLING

The appliance is dispatched enclosed in special protective packaging, which should be kept intact until the appliance
is positioned in the final place of installation.
The appliance should be handled with extreme care, always keeping it in its original packaging.

One pallet may hold 11 fan coils model HC/HT 10-60 (9 in vertical + 2 in horizontal) or 9 fan coils model HC 70-90

(9 in vertical).

To take the appliance out of the packaging, proceed as follows (fig. 1):

1. Turn the fan coil box upside down and open the bottom.

2. Remove the polystyrene filling and keep it.

3. Keeping the bottom of the box open, turn the pack 180°, taking care that the contents are firmly held before resting
it gently on the ground. Lift off the packaging from the appliance.

SAFETY RULES

Secure packs during

transportation.

Do not expose to the

elements.

Do not tread on packs.

Protect hands with work gloves when

dismantling the appliance.

Work in PAIRS if the appliance weighs

more than 25 kg.

Fig. 01

1

2

3

INSTALLATION - OPERATING & MAINTENANCE MANUAL

Page 3

SERIE

WIND

GENERAL TECHNICAL DATA

147

Ø 20

200

274

137

337

67

39

109

103

53

without cabinet

220
225

200

Ø 20

147

374

124

268

253

41

107

101 52

220
225

with cabinet

3/4" G

1/2" G

1/2" G

3/4" G

L

H

25

130

30

M
D
C180 110

Fig. 02

APPLIANCE DESCRIPTION

MODEL HC10 HC20 HC30 HC40 HC50 HC60 HC70 HC80 HC90

No.
Rows No.
Fittings Ø
Rows No.
Fittings Ø

Ø mm

mm
mm
mm 660 860
mm 420 620

370 570

395 595
mm
mm

Kg 14 17 22 23 27 28 30 35 36

W 38 54 60 61 97 210 207

A 0,18 0,25 0,28 0,28 0,45 0,96 0,95

Electricity supply 230V/1/50 Hz

99

0,45

1.060 1.260
820 1.020

225

795 995 1.195

Depth with housing 220

460 565

1.460

1.220

(D)

1.170970770

585

321Fans

Auxiliary coil

Standard coil

3/4"

1

3

1/2"

20

480

Max. electric fan power
Max. electric fan current

Condensate drain fitting
Height with housing (H)

Width with housing

(M)

Net weight

Height without housing

Depth with housing (S)

(C)

MAIN PARTS

LOAD-BEARING STRUCTURE

Galvanised (8/10) sheet metal insulated even in those parts that are not in direct contact with the heat-transfer fluid.
Condensate collecting tray in insulated, galvanised sheet metal complete with fittings for condensate drainage. Sides
with knock-outs for fast fixing of accessories. Wall-mounting slots for easy fixing and levelling of appliance.

HEAT EXCHANGE COIL

Coils in copper piping expanded into aluminium fins in continuous block. Brass headers with female fittings (gas thread)
and easily accessible air valves. Water fittings positioned on the left (facing the appliance).

ELECTRIC FAN UNIT

Double inlet centrifugal fans with statically and dynamically balanced horizontally-oriented aluminium impellers.
Single-phase asynchronous electric motor with overload cutout. 6 speeds of rotation (3 connected). The motor is directly
coupled to the fans and cushioned with flexible mountings to ensure low noise.

Tab. 1

Model

10-60 Model

70-90

INSTALLATION - OPERATING & MAINTENANCE MANUAL

Page 4

136

3

3

121 233

26

12

Length of unit with cabinet ( C )

Length of recessed unit without motor (A)

12

109

Length of recessed unit with motor (B) Depth with cabinet 206

Depth without cabinet202

190

213

16

329 77

259 154

Height without cabinet 460

Height with cabinet 477

45 83

123 41

1/2"G

1/2"G

Fig. 02

6

2

GENERAL TECHNICAL DATA

2

APPLIANCE DESCRIPTION

MODEL HT100 HT200 HT300 HT400 HT600
Fan No, 1 1 1 1 1

Rows No, 2
Fittings Φ
Rows No,

Fittings Φ
Condensats drain fitting Φ
Height with housing mm
Height without housing mm
Width with the housing mm 760 760 960 1160 1360

Width without the housing without the motor (A) mm 640 640 840 1040 1240
Width without the housing with the motor (B) mm 740 740 940 1140 1340

Depth with the housing mm
Depth without the housing mm
Net Weight kg 14 16 21 26 30
Max. electric fan power W 29 29 36 39 50
Max. electric fan current A 0,14 0,14 0,17 0,17 0,23

Electrical supply 230V/1/50Hz

460

206
202

Auxiliary coil

1/2"

1

16

Standard coil

3

1/2"

480

MAIN PARTS

LOAD-BEARING STRUCTURE

Galvanised (8/10) sheet metal insulated even in those parts that are not in direct contact with the heat-transfer fluid.
Condensate collecting tray in insulated, galvanised sheet metal complete with fittings for condensate drainage. Sides
with knock-outs for fast fixing of accessories. Wall-mounting slots for easy fixing and levelling of appliance.

HEAT EXCHANGE COIL

Coils in copper piping expanded into aluminium fins in continuous block. Brass headers with female fittings (gas thread)
and easily accessible air valves. Water fittings positioned on the left (facing the appliance).

ELECTRIC FAN UNIT

Tangential fans with statically and dynamically balanced horizontally-oriented aluminium impellers.
Single-phase asynchronous electric motor with overload cutout.3 speeds of rotation . The motor is directly

coupled to the fans .

Tab. 1

Model

10-60 Model

70-90

INSTALLATION - OPERATING & MAINTENANCE MANUAL

Page 5

LEGEND
1 Air valve
2 Exchange coil
3 Minimum water temp. sensor
4 Control panel
5 Condensate collecting tray
6 Room thermostat sensor
7 Air filter
8 Electric motor

9 Fan

10 Condensate drain
11 Wall-mounting slots
12 Water connections
13 Coil fixing screws
14 Load-bearing structure
15 Knockouts

Fig. 03

MAIN PARTS

HOUSING

Modern, elegant design that blends in with any environment. Made in hot-galvanised sheet metal covered by a PVC
film to ensure high resistance to rust, corrosion, chemical agents, solvents and alcohols. Grilles and airflow louvers
in ABS as well as the control panel protective flap are to be found in the top part.

CONTROL PANEL

Protected by the flap, the control panel is housed in the side opposite the water fittings. It comprises a power switch
and the three-speed setting switch; it may include a room temperature thermostat (optional).

AIR FILTER

Easily removable, the filter is housed in the lower part of the appliance on the air intake prior to the fan. It comprises
a frame containing a filtering acrylic membrane that may be regenerated by vacuuming and washing.

2

15

13

15

13

2

5

6

4

3

1

7

8

9

10

11

12

14

INSTALLATION - OPERATING & MAINTENANCE MANUAL

Page 6