Lennox CLIMATIC 60 User Manual

CLIMATIC™ 60

9 - 1000 kW

ECOLEAN™ NEOSYS™

User manual

CL60 AC-CHILLER-IOM-1011-E

Air cooled chiller

• 1 •

CLIMATIC™ 60

CL60-AC CHILLER-IOM-1011-E

CONTROL MANUAL

Ref : CL60-AC CHILLER-IOM-1011-E

TABLE OF CONTENTS

AIR COOLED CHILLER

INTRODUCTION

CLIMATIC™ 60 controller

Compatibility

Warning

OVERVIEW

Compressor

Condenser fan

Fan SMART ACOUSTIC SYSTEM™

Water evaporator

Changeover heating/cooling mode

Coil defrost

Free cooling

Electronic expansion valve

Electrical heater

Power factor corrector

Pump evaporator management

Pump evaporator ﬂ ow control

Pump condenser management

Pump condenser ﬂ ow control

Free input/output

ON/OFF control

Real time lock

Scheduling zone

Scheduling mode

Schedule anticipation start-up

COMMUNICATION

Master / slave

DS60 display

DC60 advanced display or DS60 display DC60 list

BMS

Alarms

All the technical and technological information contained in this manual, including any drawing and technical descriptions provided by us, remain the property of Lennox and must not be utilised (except in operation of this product), reproduced, issued to or made available to third parties without the prior written agreement of Lennox.

• 2 • CL60-AC CHILLER-IOM-1011-E

INTRODUCTION

OVERVIEW

CLIMATIC™ 60 CONTROLLER

The new generation of microprocessor based control, CLIMATIC™ 60 may be ﬁ tted to the LENNOX chiller or heat pump range. It inherits 20 years of technology and ﬁ eld operating experience from its predecessors the CLIMATIC™ 1, CLIMATIC™ 2 and CLIMATIC™ 50. LENNOX has found the latest hardware technology available on the market place and developed software speciﬁ cally designed for chiller and heat pump applications, maximising the LENNOX unit’s efﬁ ciency and performance.

COMPATIBILITY

This documentation is compatible with the chiller and heat pump range's programs from software version CH060 STD - Vers. 01.0 Rev 00.1:

• ECOLEAN™,

• NEOSYS™.

•

WARNING

Any parameter modiﬁ cation should be carried out by trained and licensed competent technician. Before start-up or restart of a unit controlled by the CLIMATIC™ 60, it is mandatory to check adequacy between CLIMATIC™ 60 and the unit with its options. In case of wrong parameters, the inputs / outputs connections could be incorrect and may create some operation problems for the units and ultimately breakdowns. LENNOX cannot be held responsible for any claims on the units due to a wrong parameters sequence or a parameters modiﬁ cation carried out by non competent technicians. In this case, the warranty will be legally null and void.

pLan bus Fieldbus bus

BMS bus

• 3 •

12h/24h

9h 3h

12h/24h

18h

21h 15h

1, ., .

., 2, .

1, 2, .

., ., 3

1, ., 3

., 2, 3

1, 2, 3

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

COMPRESSOR

Function

The CLIMATIC™ 60 manages the compressor(s) according to the outlet temperature demand and engages the number of compressor calculated to reach the water set point.

Description

The CLIMATIC™ 60 offers possibilities to disable some compressor(s) on the circuit. Note this opportunity can also be done by dry contact (Refer to the “Free input/output” paragraph).

The compressors allowed to run can be pre-speciﬁ ed according to the scheduling and can take different values for each schedule mode (A, B, C, D, and BMS).

Setting

(3421)

Compressor on circuit

(case od 2 circuits)

Moreover, the circuit priority can be speciﬁ ed (for units with 2 circuits)

“Auto”:

The CLIMATIC™ 60 decides the priority of the circuit which starts ﬁ rst. Note that the priority is swapped when all the compressors are stopped in order to optimise the operating hours of the two circuits.

C Mode

C1: 1,2,3 C2: 1,2,3

A Mode

C1: 1,.,. C2: 1,.,.

C Mode

C1: 1,2,3 C2: 1,2,3

B Mode

C1: 1,2,. C2: 1,2,.

B Mode

C1: 1,2,. C2: 1,2,.

D Mode

C1: .,.,3 C2: .,.,3

D Mode

C1: .,.,3 C2: .,.,3

• 4 •

(3331):

(3332):

(3335):

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

The compressor is subject to various operating time in order to prevent from damage operating.

• The minimum ON time of the compressor is ﬁ xed to 1 minute,

• The minimum OFF time of the compressor is ﬁ xed to 1 minute,

• The minimum between 2 starts of the same compressor is ﬁ xed to 5 minutes.

Compressor demand

Compressor output

Settings

The different settings to conﬁ gure the compressors are available in the menu:

“Priority C1”:

The priority is ﬁ xed to circuit 1, which means circuit 1 starts ﬁ rst and stops the last.

“Priority C2”:

The priority is ﬁ xed to circuit 2, which means circuit 2 starts ﬁ rst and stops the last.

Enable of the compressor(s) on circuit 1

Enable of the compressor(s) on circuit 2

Priority of the circuit rotation.

• 5 •CL60-AC CHILLER-IOM-1011-E

COMPONENTS

CONDENSER FAN

Function

The CLIMATIC™ 60 is used to maintain the high pressure as stable as possible in order to increase the performance of the unit.

Description

The CLIMATIC™ 60 has 2 different fan managements according to the type of unit:

ECOLEAN™ (without fan speed inverter)

The CLIMATIC™ 60 manages 2 speeds on the fan (low and high speed).

NEOSYS™ standard unit (standard version without fan speed inverter)

The condensing temperature is reached according to the set point selected in the menu (3546). The fans are managed individually except for the fans which are common for the two circuits. In order to optimise the reactivity of the system at the startup of the circuit, an anticipation of the fan(s) is forced during the ﬁ rst 30s according to the outside air temperature.

Example: Case of unit with 4 condenser fans.

Outside air temperature (°C

Stopped

HP pressure (Bar)

Low speed

High speed

Cooling mode

Heating mode

Outside air temperature (°C)

Compressor pressure demand (%)

Fan anticipation (%)

Fan stages

• 6 •

(3546):

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

Time

Temperature HP (°C)

Fan capacity (%)

Condensing set point

Settings

The different settings to adjust the condensing control are available in the menu:

NEOSYS™ (with fan speed inverter)

A fan inverter controlled by a PID algorithm is used to adjust the fans speed variation. Fan's startup anticipation is forced as for the NEOSYS™ standard unit.

In order to optimise the performance of the unit, the condensing temperature is set according to outside air temperature and tries to maintain a delta of 12°C (only for unit with electrionic expansion valve).

Note: this functionality can be disabled if the selected setting (3546) is different from the factory value. In this case the condensing set point is the new selected value.

Outside air temperature (°C)

Set point = ext T° 12.0°C

Condensing set point (°C)

Condensing set point temperature.

• 7 •CL60-AC CHILLER-IOM-1011-E

COMPONENTS

FAN SMART ACOUSTIC SYSTEM™

Function

The CLIMATIC™ 60 controls the fan speed limited by the Smart Acoustic System™ which allows progressive adaptation of the unit to the building load while respecting the noise level constraints and the operating limits.

Description

The maximum sound level and the fan strategies can be adjusted according to the schedule mode in order to beneﬁ t from the different modes “High performance”, “Quiet” and “Quiet++” operation as well as in heating or cooling mode. The acoustic mode offers 2 possibilities to manage the condenser fan:

Quiet”

In this mode, the fan capacity is limited according to the desired sound level. For fan using low / high speed, the high speed is locked. In case of condensing temperature too high, the CLIMATIC™ 60 unlocks the limit or the high speed to prevent from unloading compressor.

Outside air temperature (°C

Stopped

HP pressure (Bar)

Low speed

High speed

Cooling mode

Heating mode

Fan speed (%)

Maximum = (3545)

Fan capacity (%)

Maximum = 100%

Temperature HP (°C)

(3546) Condensing set point

(3442) Unloading set point

Cooling mode

Heating mode

• 8 •

12h/24h

9h 3h

12h/24h

18h

21h 15h

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

“Quiet++”

This mode is similar to the “Quiet” mode except that the fan speed limit or the high speed is never unlocked. In case of condensing temperature too high, the CLIMATIC™ 60 will unload a compressor to prevent from high pressure security.

The Smart Acoustic System™ can be adjusted according to the scheduling and can take different values for each schedule mode (A, B, C, D, and BMS).

Outside air temperature (°C

Stopped

HP pressure (Bar)

Low speed

High speed

Cooling mode

Heating mode

Fan speed (%)

Maximum = (3545)

Fan capacity (%)

Maximum = 100%

Temperature HP (°C)

Compressor unloading

(3546) Condensing set point

(3442) Unloading set point

Cooling mode

Heating mode

C Mode

Quiet

A Mode

Quiet+

C Mode

Not Set

B Mode

Not Set

B Mode

Quiet

D Mode

Quiet+

D Mode

Quiet

• 9 •

12h/24h

9h 3h

12h/24h

18h

21h 15h

(3544):

(3545):

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

C Mode

86dBA

A Mode

84dBA

C Mode

89dBA

B Mode

89dBA

B Mode

86dBA

D Mode

84dBA

D Mode

Quiet

Settings

The different settings to adjust the acoustic mode are available in the menu:

Acoustic mode

Maximum sound level noise (except for fan with low / high speed)

• 10 •

12h/24h

9h 3h

12h/24h

18h

21h 15h

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

WATER EVAPORATOR

Function

The CLIMATIC™ 60 controls the chilled or heat temperature according to the specifed set point. The desired set point can be set by different solutions.

Description

The CLIMATIC™ 60 offers various possibilities to specify the water evaporator set point.

Dynamic value

The CLIMATIC™ 60 determines the appropriate water set point according to the outside temperature in order to optimise the energy consumption. This method requires to pre-deﬁ ne 2 different water set points corresponding to 2 outside temperatures.

Fix value

In this case the outside temperature has no effect on the water set point and the two set points must be set at the same value.

The cooling and heating set points can be pre-speciﬁ ed according to the scheduling and can take different mode for each schedule mode (Night, Day, Day A, Day B, and BMS)

Outside air temperature (°C)

Cooling set point (°C)

Heating set point (°C)

Mode

Day A

07.0°C

Night

Mode

13.0°C

Mode

Day A

07.0°C

Mode

Day B

07.0°C

Mode

Day

07.0°C

Night Mode

13.0°C

Mode

Day A

09.0°C

• 11 •CL60-AC CHILLER-IOM-1011-E

External current 4/20mA signal

In this case the actual set point is calculated according to the analog input current. The set points specify the corresponding set point for 4mA and for 20mA.

Current input signal 4/20 mA

Cooling set point (°C) Heating set point (°C)

COMPONENTS

Second external set point

In this case the actual set point is specifed by one of the two set points. The ﬁ nal set point depends on the status of the digital dry contact allocated to this function.

External current 4/20 mA offset

In this case the set point is set by one of the previous solution and can be adjusted with an offset of +/- 1.0°C.

Digital input contact

Current inpu signal 4/20 mA

Outside air temperature (°C)

Current inpu signal 4/20 mA

Cooling set point (°C)

Open Open

Closed Closed

Cooling set point (°C)

Actual set point Actual set point

Heating set point (°C)

• 12 • CL60-AC CHILLER-IOM-1011-E

COMPONENTS

DC60 terminal

The water set point is adjustable directly by the DC60. If the read set point is different from the one calculated by the BM60, the new set point is set by the DC60 during the actual zone. Each time the zone is changing, the DC60 set point is overwriten by the CLIMATICTM60 set point.

BMS value

The CLIMATIC™ 60 receives the water set point from the BMS. Refers to the “BMS” paragraph for more details.

Settings

The different settings to adjust the water evaporator set points are available in the menu:

Cooling mode

• (2236) or (3236): minimum outside air temperature corresponding to the water evaporator set point (3238) (used only for dynamic

set point),

• (2237) or (3237): maximum outside air temperature corresponding to the water evaporator set point (3239) (used only for dynamic

set point),

• (2238) or (3238):

* Dynamic set point: desired water evaporator temperature set point corresponding to outside air temperature (2236) or (3236), * Fix set point: desired water evaporator temperature set point. * External current 4/20 mA signal: water evaporator temperature set point corresponding to a current signal of 4 mA. * Second external set point: ﬁ rst water evaporator temperature set point corresponding to an opened dry contact.

• (2239) or (3239):

* Dynamic set point: desired water evaporator temperature set point corresponding to outside air temperature (2237) or (3237), * Fix set point: desired water evaporator temperature set point. * External current 4/20 mA signal: water evaporator temperature set point corresponding to a current signal of 20 mA. * Second external set point: second water evaporator temperature set point corresponding to a closed dry contact.

Heating mode

• (2246) or(3246): minimum outside air temperature corresponding to the water evaporator set point (3248) (used only for dynamic

set point),

• (2247) or (3247): maximum outside air temperature corresponding to the water evaporator set point (3249) (used only for dynamic

set point),

• (2248) or (3248):

* Dynamic set point: desired water evaporator temperature set point corresponding to outside air temperature (2246) or (3246), * Fix set point: desired water evaporator temperature set point. * External current 4/20mA signal: water evaporator temperature set point corresponding to a current signal of 4 mA. * First external set point:

ﬁ rst water evaporator temperature set point corresponding to an opened dry contact.

• (2249) or (3249):

* Dynamic set point: desired water evaporator temperature set point corresponding to outside air temperature (2247) or (3247), * Fix set point: desired water evaporator temperature set point. * External current 4/20mA signal: water evaporator temperature set point corresponding to a current signal of 20 mA. * Second external set point: second water evaporator temperature set point corresponding to a closed dry contact.

• 13 •

00 0 0

1 8.54 30.8 7.0 + 30.8*5.0/100

2 10.80 61.6 7.0 + 2*30.8*5.0/100

3 11.04 80.8 7.0 + (19.2+2*30.8)*5.0/100

4 12.00 100.0 7.0 + 2*(19.2+30.8)*5.0/100

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

Control

The CLIMATIC™ 60 adjusts and holds the ﬂ uid outlet temperature as close as possible to the set point, by controlling the number of compressor stages depending on the thermal load of the system. The controller constantly calculates the required capacity to reach the temperature set point. This variable is called “CAPACITY FACTOR” (CF) and its value can vary from 0 to 100%. It is directly linked to the number of control stages of the unit. Thus for a unit with 4 stages of regulation, the CF will start and stop a stage with the following values: ~0-25-50-75-100%. It then evolves following the principles detailed in the diagram.

In order to anticipate, the reference point is recalculated each time the difference between air temperature and set point reaches a minimum or a maximum. Moreover the inlet temperature is used to limit the capacity factor to prevent from too slow reactivity of outlet capacity factor of the unit.

Example:

• Unit EAC 2104: cooling capacity: 210KW with: * C1.Cp1 = 19.2%, * C1.Cp2 = 30.8%, * C2.Cp1 = 19.2%, * C2.Cp2 = 30.8%.

• Maximum delta T° (inlet - outlet) at full load: setting (3261) = 5.0°C.

• Outlet water evaporator temperature set point: setting (3238) = (3239) = 7.0°C.

Difference between the outlet

water temperature and the

set point

Water temperature

can change

CF FROZEN

FAST SLOW SLOW FAST

CF INCREASES

(starts more capacity stages)

CF DECREASES

(removes capacity stages)

Stage

Minimum inlet

temp. (°C)

Maximum

capacity factor

(%)

Expression

Compressor

ON circuit 1

Compressor

ON circuit 2

• 14 •

12h/24h

9h 3h

12h/24h

18h

21h

15h

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

CHANGEOVER HEATING/COOLING MODE

Function

The CLIMATIC™ 60 controls the changeover mode (for reversible units only) to specify the appropriate demand on heat or chilled water production.

Description

The changeover can also be pre-speciﬁ ed according to the scheduling and can take different mode for each schedule mode (A, B, C, D, and BMS).

The changeover mode can be set by different solutions:

Automatically:

The CLIMATIC™ 60 determines the appropriate production of water according to the outside temperature and moves automatically the unit from cooling to heating mode and heating to cooling mode.

If the outside temperature is below the setting value (2225) or (3225), the unit will operate as a heat pump. If the outside temperature is over the setting value (2226) or (3226), the unit will operate as a chiller.

Manually:

The changeover mode is forced for each schedule mode. The various modes available are “Cool” mode, “Heat” mode or "Dead zone". In this case the outside temperature has not effect on the changeover mode.

Remotely:

The changeover mode is set according to a remote dry contact connect on a free custom digital input. In this case the unit swaps in cooling or heating mode according to the status of the digital input. Please refer to the paragraph “Free Input / Output” for more details.

C Mode

Auto

A Mode

Dead zone

C Mode

Cool

B Mode

Cool

B Mode

Heat

D Mode

Heat

D Mode

Auto

Changeover mode

Heating mode

Dead zone

Cooling mode

Outdoor temperature (°C)

• 15 •CL60-AC CHILLER-IOM-1011-E

Terminal DC60:

The changeover mode (cool / heat) can be modiﬁ ed by the terminal DC60 by pressing the “mode” button.

When the “Auto” mode is selected, the icon “Cool” or “Heat” is displayed to signal the actual operating mode. Due to communication delay, after pressing the “mode” button it is advised to wait few seconds, the time to refresh of the icon on the display.

COMPONENTS

Heat  Cool  Auto  Dead zone

Settings

The different settings to adjust the changeover mode are available in the menu:

• (2224) or (3224): changeover mode (Cool, Heat, Auto, Dead zone) for each schedule mode (Night, Day, Day A, Day B, and BMS).

• (2225) or (3225): minimum outside temperature to swap to heating mode. (only if (2224) or (3224)=“Auto”).

• (2226) or (3226): maximum outside temperature to swap to cooling mode. (only if (2224) or (3224)=“Auto”).

• 16 • CL60-AC CHILLER-IOM-1011-E

COMPONENTS

COIL DEFROST

Function

The CLIMATIC™ 60 manages defrost procedure to avoid ice on the evaporator coil in heating pump mode (winter season).

Description

To avoid the icing of the external air exchanger during winter operating, it’s necessary to reverse the refrigerant cycle. There are 2 defrost mode:

• cyclic mode,

• dynamic mode (not available in the software CH060 vers.01-rev.0.1).

The defrost procedure is activated if the following conditions are met during 1 minute:

• the outside air temperature is  (3562),

• one of the compressor(s) on the circuit has been running for a time  (3564) since the last defrost,

• the saturation temperature is  (3563).

The defrost procedure is characterized by the following steps:

1. stop the compressors on the concerned circuit,

2. wait for 30 s to equalise the pressure in the circuit,

3. start all compressors on the circuit (if the outlet T° is not too low),

4. reverse the reversing valve when P>2 bars,

5. start all condenser fans when the HP  55.0°C in order to dry the coil,

6. stop all condenser fans when the HP  40.0°C,

7. repeat the steps 4. to 5. 3 times,

8. stop the compressors on the concerning circuit,

9. wait for 1 min to equalise the pressure in the circuit,

10. end of procedure; restart the unit in heating mode.

11. reverse the reversing valve when P>2bar.

Note

• In case of alarm on the circuit during the defrost procedure, the defrosting is cancelled.

• If the HP pressure doesn’t reach 55°C after 6 min, during the step 6, the defrost procedure is cancelled.

• During the step 4 the compressor(s) could not start in order to not decrease too much the water temperature of the system.

Settings

The different settings to adjust the defrosting procedure are available in the menu:

• (3561): defrost mode (cyclic, dynamic),

• (3562): minimum of outside air temperature to enable defrost procedure,

• (3563): critical saturation temperature to enable defrost procedure

• (3564): minimum of interval time to enable defrost procedure.

Outlet water temperature (°C)

Compressor in defrost

• 17 •

(3164):

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

FREE COOLING

Function

The freecooling option ensures to reduce the electrical consumption using the outside air temperature to produce cool water.

Description

The freecooling uses water coil with helicoids fans controled by the CLIMATIC™ 60. The freecooling has a higher priority face to the compressors. Once the freecooling capacity is over 95% for 2 min, the compressors can be engaged if necessary in order to reach the cooling set point. If the freecooling capacity decreases below 90%, the capacity factor of the compressor(s) capacity is locked to give the priority to the freecooling.

The freecooling is enabled if the following conditions are met:

• the unit is ready (On/Off, water ﬂ ow, none alarm, etc..),

• the freecooling fan driver is operating (none alarm)

• outside temperature < (Inlet temperature – 3°C).

Settings

The setting to conﬁ gure the freecooling option is available in the menu:

Conﬁ guration of the freecooling option.

• 18 •

(2224):

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

ELECTRONIC EXPANSION VALVE

Function

The electronic expansion valve (EEV) option offers higher efﬁ cient control of the superheating temperature.

Description

The electronic expansion valve is driven by an external board (Electronic Valve Driver - EVD) which includes a PID algorithm to control the superheating. The EVD is linked to the CLIMATIC™ 60 to send data like capacity, step, pressure, temperature.

Settings

The setting to adjust superheat temperature option is available in the menu:

Note: the modiﬁ cation of the superheating set point is taken in account at the next startup of the circuit.

Superheat set point.

• 19 •

(3164):

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

ELECTRICAL HEATER

Function

The electrical heater option is an additional heating capacity to help the heat pump to reach the set point during hard winter period.

Description

The electrical heater option has 2 uses:

Antifreeze heater

In this case, the heater is used to prevent the evaporator water from antifreeze. The heater is activated when the low alarm temperature appears in cooling mode or when the safety low temperature is reached in heating mode.

Auxiliary heater

The heater is activated when the water temperature is far from the set point and the compressor(s) are fully running. In this case, the heater is used to help the compressors to reach the heating set point.

Settings

The setting to conﬁ gure the electrical heater is available in the menu:

Heating set point

Outlet water temperature (°C)

Conﬁ guration of the electrical heater.

• 20 •

(3163):

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

POWER FACTOR CORRECTOR

Function

The power factor correction is an additional capacitor bank to compensate the apparent power energy.

Description

The CLIMATIC™ 60 controls the status of the circuit breaker to inform (generate an alarm) in case of short circuit in the capacitor bank.

Settings

The setting to conﬁ gure the power factor correction is available in the menu:

Conﬁ guration of the power factor correction..

• 21 •

(3341):

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

PUMP EVAPORATOR MANAGEMENT

Function

The CLIMATIC™ 60 offers in option a solution to manage a single or double evaporator pump(s).

Description

In case of double pumps, the CLIMATIC™ 60 can manage various possibilities of pumps operating.

Priority to pump 1

The CLIMATIC™ 60 speciﬁ es the priority to pump 1 to start ﬁ rst. Pump 2 is used only as a backup pump and will start only if pump 1 is in alarm. Pump 1 is kept ON as soon as the machine is enabled.

Auto priority to pump 1

Same conﬁ guration as case 1, except that the pump will be stopped in case of dead zone changeover (winter / summer).

Priority to pump 2

The CLIMATIC™ 60 speciﬁ es the priority to pump 2 to start ﬁ rst. Pump 1 is used only as backup pump and will start only if pump 2 is in alarm. Pump 2 is kept ON as soon as the machine is enabled.

Auto priority to pump 2

Same conﬁ guration as case 3, except that the pump will be stopped in case of dead zone changeover (winter / summer).

No priority

The CLIMATIC™ 60 speciﬁ es automatically the priority of the pump according to the operating hour counter. The ﬁ rst pump to start will be the one which has the less number of hours of operation. In order to equalize the number of hours the unit is stopped every tuesday at 02 am to re-specify the priority. Note: the total operating hour are displayed on the DC60 Advanced on 2 numbers in the menus (2314) and (2315) (pump n°1).

Example:

(2314) = 0123, (2315) = 4567, Total Hour = (2314)*10000 + (2315) = 01234567 hours.

No auto priority

Same conﬁ guration as case 5, except that the pump will be stopped in case of dead zone changeover (winter / summer).

Settings

The different settings to adjust the pump mode are available in the menu:

Pump(s) rotation type

• 22 • CL60-AC CHILLER-IOM-1011-E

COMPONENTS

PUMP EVAPORATOR FLOW CONTROL

Function

The CLIMATIC™ 60 offers the possibility to have a ﬂ ow control in option.

Description

There are up to 4 modes to manage the evaporator water ﬂ ow.

Fix speed

The CLIMATIC™ 60 maintains a ﬁ x ﬂ ow according to the maximum desired speed. The ﬂ ow is set to the minimum desired ﬂ ow only when no compressor is running.

Fix delta of temperature

The CLIMATIC™ 60 maintains a ﬁ x delta of temperature according to inlet and outlet temperature probe on the evaporator. The desired delta of temperature is customized in the menu (3344).

Compressor(s)

Outlet water temperature

Compressor(s)

Flow output

Inlet water temperature

Output ﬂ ow (%)

(3344) Fix delta temperature

(3347) Minimum 60%

(3348) Maximum 100%

• 23 •

(3342):

(3344):

(3345):

(3346):

(3347):

(3348):

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

Settings

The different settings to adjust the ﬂ ow control are available in the menu:

Fix delta of pressure

The CLIMATIC™ 60 maintains a ﬁ x delta of pressure according to the transducers (in and out) on the pump. The desired delta of pressure is customized in the menu (3345).

Fix output pressure

The CLIMATIC™ 60 maintains a ﬁ x output pressure according to the output transducer on the pump. The desired output pressure is customized in the menu (3346).

Compressor(s)

Pressure out

Output ﬂ ow (%)

Pressure in

(3345) Fix delta pressure

(3347) Minimum 60%

(3348) Maximum 100%

(3346) Set point

Type of ﬂ ow control

Desired delta of temperature on the water evaporator (outlet - inlet)

Desired delta of pressure on the water pump (outlet - inlet)

Desired output pressure on the water pump (Out),

Minimum ﬂ ow on the water evaporator

Maximum ﬂ ow on the water evaporator

• 24 •

(3381):

CL60-AC CHILLER-IOM-1011-E

COMPONENTS

PUMP CONDENSER MANAGEMENT

Function

The CLIMATIC™ 60 offers in option a solution to manage a single or double condenser pump(s).

Description

In case of double pumps the CLIMATIC™ 60 can manage various possibilities of operating of the pumps.

Priority to pump 1

The CLIMATIC™ 60 speciﬁ es the priority to pump 1 to start ﬁ rst. Pump 2 is used only as backup pump and will start only if pump 1 is in alarm. Pump 1 is kept ON as soon as the unit is enabled.

Auto priority to pump 1

Same conﬁ guration as case 1, except that the pump will be stopped in case of dead zone changeover (winter / summer).

Priority to pump 2

The CLIMATIC™ 60 speciﬁ es the priority to pump 2 to start ﬁ rst. Pump 1 is used only as backup pump and will start only if pump 2 is in alarm. Pump 2 is kept as soon as the unit is enabled.

Auto priority to pump 2

Same conﬁ guration as case 3, except that the pump will be stopped in case of dead zone changeover (winter / summer).

No priority

The CLIMATIC™ 60 speciﬁ es automatically the priority of the pump according the operating hour counter. The ﬁ rst pump to start will be the one which has the less number of hours of operation. In order to equalize the number of hours the unit is stopped every tuesday at 02 am to re-specify the priority. Note: The total operating hour are displayed on the DC60 Advanced on 2 numbers in the menus (2344) and (2345) (Pump N°1).

Example:

(2344) = 0123, (2345) = 4567, Total hour = (2344)*10000 + (2345) = 01234567 hours.

No auto priority

Same conﬁ guration as case 5, except that the pump will be stopped in case of dead zone changeover (winter / summer).

Settings

The different settings to adjust the pump mode are available in the menu:

Pump(s) type of rotation

• 25 •CL60-AC CHILLER-IOM-1011-E

COMPONENTS

PUMP CONDENSER FLOW CONTROL

Function

The CLIMATIC™ 60 offers the possibility to have ﬂ ow control in option.

Description

Fix ﬂ ow

The CLIMATIC™ 60 maintains a ﬁ x ﬂ ow according to the maximum desired speed. The ﬂ ow is set to the minimum desired ﬂ ow only when no compressor is running.

Fix delta of temperature

The CLIMATIC™ 60 maintains a ﬁ x delta of temperature according to the inlet and outlet temperature probe on the condenser. The desired delta of temperature is customized in the menu (3384).

Compressor(s)

Outlet water temperature

Compressor(s)

Flow output

Inlet water temperature

Output ﬂ ow (%)

(3384) Fix delta temperature

(3387) Minimum 60%

(3388) Maximum 100%

• 26 •

(3382): (3384):

(3385):

(3386): (3387):

(3388):

CL60-AC CHILLER-IOM-1011-E

Fix delta of pressure

The CLIMATIC™ 60 maintains a ﬁ x delta of pressure according to the transducers (in and out) on the pump. The desired delta of pressure is customized in the menu (3385).

COMPONENTS

Settings

The different settings to adjust the ﬂ ow control are available in the menu:

Fix output pressure

The CLIMATIC™ 60 maintains a ﬁ x output pressure according to the output transducer on the pump. The desired output pressure is customized in the menu (3386).

Fix condensing temperature

The CLIMATIC™ 60 maintains a ﬁ x condensing temperature according to the outlet probe on the condenser. The condensing set point is customized in the menu (3546).

Compressor(s)

Pressure out

Output ﬂ ow (%)

Pressure in

(3385) Fix delta pressure

(3387) Minimum 30%  60%

(3387) Minimum 60%

(3388) Maximum 100%

(3386) Set point

Time

Temperature HP (°C)

Fan capacity (%)

Condensing set point

Type of ﬂ ow control

Desired delta of temperature on the water evaporator (outlet - inlet)

Desired delta of pressure on the water pump (outlet - inlet)

Desired output pressure on the water pump (outlet),

Minimum ﬂ ow on the water condenser

Maximum ﬂ ow on the water condenser

• 27 •CL60-AC CHILLER-IOM-1011-E

COMPONENTS

FREE INPUT/OUTPUT

Function

The CLIMATIC™ 60 has free input / output on the main board BM60 and the expansion board BE60 to offer different possibilities to customize input / output for remote control of the unit.

Description

The free customized input / output number is:

• 2 free input contacts (normally opened) on BM60,

• 1 free output contact (normally opened) on BM60,

• 4 free input contacts (normally opened) on BE60,

• 4 free contacts (normally opened) output on BE60,

• 4 free analog inputs on BE60.

The expansion board BE60 is an additional board ﬁ xed on DIN rail. The description of the various connectors is:

1. Power supply of the board,

2. Analog output 0/10V: not used,

3. Network bus to the CLIMATIC™ 60 BM60,

4. 4 digital inputs: dry contacts only,

5. LED status of the network bus,

6. Serial address dip-switch of the network bus,

7. 4 analog inputs conﬁ gurable by pair B1-B2 and B3-B4,

8. 4 digital outputs: dry contacts only.

Power supply

The expansion board BE60 is powered in 24Vac, +/-15%, 50-60Hz, Pmax=6W.

• 28 • CL60-AC CHILLER-IOM-1011-E

COMPONENTS

Analog input

The 4 analog inputs can be used as NTC probe (-50T90 °C; R/T 10 K at 25 °C) or 4/20mA (Impedance = 100) current signal. They are conﬁ gurable by pair B1-B2 and B3-B4. The conﬁ guration of the type of the input is automatically set by the CLIMATIC™ 60.

The analog input can be conﬁ gurated to be used as one of these items:

0. not set,

1. desired water set point,

2. desired offset set point,

3. free NTC probe.

Digital input

The 4 digital inputs must be used with dry contacts according to the following example. The digital input can be conﬁ gurated to be used as one of these items:

0. not set,

1. remote On/Off,

2. remote reset alarm,

3. swap to second water set point,

4. force the cooling mode,

5. force the heating mode,

6. force the dead zone mode,

7. force the defrost delay (10 min),

8. disable circuit 1 (all compressors),

9. disable circuit 2 (all compressors),

10. disable circuit 1(compressor 1),

11. disable circuit 1 (compressor 2),

12. disable circuit 1 (compressor 3),

13. disable circuit 2 (compressor 1),

14. ddisable circuit 2 (compressor 2),

15. ddisable circuit 2 (compressor 3),

16. force A mode,

17. force B mode,

18. force C mode,

19. force D mode,

20. force BMS mode,

21. electrical heaters status,

22. free digital input.

Passive 4/20 mA

signal

Active

4/20 mA

signal

NTC probe

Dry contact

+ 70 hidden pages

Lennox CLIMATIC 60 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual