Lennox CLIMATIC 60 User manual

CLIMATIC™ 60
User manual
MUL41E-0610/06-2011
Aircooled chillers

CLIMATIC™ 60 – AIRCOOLED CHILLERS
MUL41E-0610/06-2011 Page 1
TABLE OF CONTENTS
1. INTRODUCTION ........................................................................................................................ 2
2. OVERVIEW................................................................................................................................. 2
3. SCHEDULING ZONE ................................................................................................................. 3
4. SCHEDULING MODE ................................................................................................................ 4
5. SCHEDULING ZONE ANTICIPATION ...................................................................................... 5
6. CHANGEOVER HEAT / COOL.................................................................................................. 6
7. FREE INPUT / OUTPUT............................................................................................................. 8
8. WATER EVAPORATOR .......................................................................................................... 12
9. PUMP EVAPORATOR MANAGMENENT ............................................................................... 16
10. PUMP EVAPORATOR FLOW CONTROL............................................................................... 17
11. PUMP CONDENSER MANAGMENENT.................................................................................. 19
12. PUMP CONDENSER FLOW CONTROL ................................................................................. 20
13. COMPRESSOR ........................................................................................................................ 23
14. CONDENSER FAN................................................................................................................... 25
15. FAN SMART ACCOUSTIC SYSTEMTM ................................................................................. 27
16. COIL DEFROST ....................................................................................................................... 30
17. WATER CONDENSER............................................................................................................. 31
18. FREECOOLING........................................................................................................................ 32
19. ELECTRICAL HEATER ........................................................................................................... 33
20. POWER FACTOR CORRECTOR ............................................................................................ 34
21. MASTER / SLAVE.................................................................................................................... 35
22. DISPLAY DC60 ........................................................................................................................ 36
23. DISPLAY DS60 ........................................................................................................................ 38
24. BMS .......................................................................................................................................... 42
25. INPUTS / OUTPUTS CLIMATIC BOARDS.............................................................................. 44
26. SETTING LIST.......................................................................................................................... 46
27. ALARMS................................................................................................................................... 69

CLIMATIC™ 60 – AIRCOOLED CHILLERS
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1 - INTRODUCTION
1.1 - CONTROLLER CLIMATIC™60
The new generation of microprocessor based control, CLIMATIC™ 60 may be fitted to the Lennox Chiller or Heat
pump range. It inherits 20 years of technology and field operating experience from its predecessors the
CLIMATICTM1 and CLIMATICTM2 and CLIMATICTM50.
LENNOX has found the latest hardware technology available on the market place and developed software
specifically designed for Chiller and Heat pump applications, maximising the LENNOX unit’s efficiency and
performance.
1.2 - COMPATIBILITY
This documentation is compatible with the programs Chiller and Heat pump:
•ECOLEAN range from software version CH060 STD - Vers. 01.0 - Rev 00.0,
•NEOSYS standards range (STD) from software version CH060 STD - Vers. 01.0 - Rev 00.0.
1.3 - WARNING
Any parameter modification 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 modification carried out by non
competent technicians. In this case, the warranty will be legally null and void.
2 - OVERVIEW

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3 - SCHEDULING ZONE
3.1 - Function
The CLIMATIC™ 60 is provided by a real time clock which offers solutions to specify a weekly schedule.
3.2 - Description
The CLIMATIC™ 60 schedule manages up to 7 distinct clock zones per day from 00h00 to 24h00 and from
Monday to Sunday. The zone can start at different time for each day of the week in order to optimise the operating
of the unit.
3.3 - Settings
The different settings to adjust the scheduling zone are available in the menu:
•(2141): Start time of the zone 0 from Monday to Sunday.
•(2142): Start time of the zone 1 from Monday to Sunday.
•(2143): Start time of the zone 2 from Monday to Sunday.
•(2144): Start time of the zone 3 from Monday to Sunday.
•(2145): Start time of the zone 4 from Monday to Sunday.
•(2145): Start time of the zone 5 from Monday to Sunday.
•(2146): Start time of the zone 6 from Monday to Sunday.
Note: The start time can take different values from Monday to Sunday. The start time of the zone 0 must be set to
00h00.

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4 - SCHEDULING MODE
4.1 - Function
The CLIMATIC™ 60 is able to control different mode for each zone in order to optimise the operating of the unit.
4.2 - Description
The CLIMATIC™ 60 can manage up to 4 different modes.
4.3 - Settings
The different settings to adjust the scheduling mode are available in the menu:
•(2151): Mode used during the period of the zone 0 from Monday to Sunday.
•(2152): Mode used during the period of the zone 1 from Monday to Sunday.
•(2153): Mode used during the period of the zone 2 from Monday to Sunday.
•(2154): Mode used during the period of the zone 3 from Monday to Sunday.
•(2155): Mode used during the period of the zone 4 from Monday to Sunday.
•(2156): Mode used during the period of the zone 5 from Monday to Sunday.
•(2157): Mode used during the period of the zone 6 from Monday to Sunday.
Note: The mode used can take different values from Monday to Sunday.

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5 - SCHEDULING ZONE ANTICIPATION
5.1 - Function
The CLIMATIC™ 60 allows the start up of the unit before the pre-specifyd hour of the first zone (Zone 1) of the day.
5.2 - Description
This function is able to start the unit in zone 1 earlier if the outdoor temperature is under a specify threshold. The
typical application is to start the unit in heating mode if the weather is too cold compare to the actual season.
Example :
•(2142): Start time zone 1 : 8h00,
•(2161): Anticipation foot : 10.0°C,
•(2162): Anticipation gradient: 10mm/°C.
In this example the foot is set to the value 10.0°C, which means the zone 1 will always start at 8h00 if the outside
air temperature is higher than 10.0°C. If the outside air temperature is less than 10.0°C the zone 1 will start
according to the gradient selected and the difference from the foot value and the actual outside air temperature
(10.0 - 7.0 = 3.0 x 10 = 30min). So the new start time for the zone 1 is 7h30.
5.3 - Settings
The different settings to adjust the anticipation are available in the menu:
•(2161): Anticipation foot.
•(2162): Anticipation gradient.

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6 - CHANGEOVER HEAT / COOL
6.1 - Function
The CLIMATIC™ 60 control the changeover mode (for reversible units only) to specify the appropriate demand on
heat water or chilled water production.
6.2 - Description
The changeover can also be pre-specify 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 the water according to the outside temperature and
move automatically the unit from the cooling to heating mode and heating to cooling mode.
If the outside temperature is below the setting value (3225), the unit will operate as a heat pump.
If the outside temperature is over the setting value (3226), the unit will operate as a chiller.
Manually:
The changeover mode is pre-specifyd 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.

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Terminal DC60:
The changeover mode (cool / heat) can be modified by the terminal DC60 by pressing the “mode” button.
Heat Cool Auto Dead zone
When the “Auto” mode is selected, the icon “Cool” or “Heat” is displayed to signal the actual operating mode. Due
to the communication delay, after pressing the “mode” button it is well advised to wait few seconds, the time to
refresh of the icon on the display.
6.3 - Settings
The different settings to adjust the changeover mode are available in the menu:
•(3224): Changeover mode (Cool, Heat, Auto, Dead zone) for each schedule mode (A, B, C, D, and BMS).
•(3225): Minimum of outside temperature to swap to heating mode. If (3224)=“Auto”.
•(3226): Maximum of outside temperature to swap to cooling mode. If (3224)=“Auto”.

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7 - FREE INPUT / OUTPUT
7.1 - Function
The CLIMATIC™ 60 have free input / output on the main board BM60 and the expansion board BE60 to offer some
possibilities to customize input / output for remote control of the unit.
7.2 - Description
The number of the free customized input / output is:
•2 free contact input (normally opened) on BM60,
•1 free contact output (normally opened) on BM60,
•4 free contact input (normally opened) on BE60,
•4 free contact (normally opened) output on BE60,
•4 free analog input on BE60.
The expansion board BE60 is an additional board fixed 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 : Only dry contacts,
5) Status LED of the network bus,
6) Serial address dip-switch of the network bus,
7) 4 Analog inputs configurable by pair B1-B2 and B3-B4,
8) 4 Digital outputs: Only dry contacts.
Power supply
The expansion board BE60 is power in 24Vac, +/-15%, 50-60Hz, Pmax=6W.

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Analog input
The 4 analog inputs can be used as NTC probe (-50T90 °C; R/T 10 KΩ at 25 °C) or 4/20mA (Impedance = 100Ω)
current signal. They are configurable by pair B1-B2 and B3-B4. The configuration of the type of the input is
automatically set by the CLIMATIC™ 60.
The analog input can be configurable to be used as one of these items:
0) Not set,
1) Water set point desired,
2) Offset set point desired,
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
configurable 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 (10min),
8) Disable the circuit 1 (All compressors),
8) Disable the circuit 2 (All compressors),
9) Disable the circuit 1-compressor 1,
10) Disable the circuit 1-compressor 2,
11) Disable the circuit 1-compressor 3,
12) Disable the circuit 2-compressor 1,
13) Disable the circuit 2-compressor 2,
14) Disable the circuit 2-compressor 3,
15) Force the mode A,
16) Force the mode B,
17) Force the mode C,
18) Force the mode D,
19) Force the mode BMS,
20) Status of electrical heaters,
21) Free digital input.

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Digital output
The 4 digital outputs are dry contacts and the maximum commutable power is 2000VA, 250Vac.
The digital output can be configurable to be used as one of these items:
0) Not set,
1) General alarm (alarm minor),
2) General fault (alarm major),
3) General alarm on circuit 1,
4) General alarm on circuit 2,
5) General alarm on condenser,
6) General alarm on evaporator pump(s),
7) Flow evaporator alarm,
8) Unit enable,
9) Unit available (ready to start),
10) Unit running (one compressor ON),
11) Unit running 100% (all compressor(s) ON),
12) Unit operating in cooling mode,
13) Unit operating in heating mode,
14) Unit operating in dead zone mode,
15) Unit operating in zone 0
16) Unit operating in zone 1,
17) Unit operating in zone 2,
18) Unit operating in zone 3,
19) Unit operating in zone 4,
20) Unit operating in zone 5,
21) Unit operating in zone 6,
22) Unit operating in mode A,
23) Unit operating in mode B,
24) Unit operating in mode B,
25) Unit operating in mode D,
26) Unit operating in mode BMS,
27) Output for additional electrical heater 1,
28) Output for additional electrical heater 2,
29) Output for additional electrical heater 3,
30) Output for additional electrical heater 4,
31) Free digital output.

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7.3 - Settings
The different settings to configure the custom I/O are available in the menu:
•(3131): Setting for the digital output on the connector BM60-J14-NO7,
•(3132): Setting for the digital output on the connector BE60-J5-NO1,
•(3133): Setting for the digital output on the connector BE60-J6-NO2,
•(3134): Setting for the digital output on the connector BE60-J7-NO3,
•(3135): Setting for the digital output on the connector BE60-J8-NO4.
•
•(3141): Setting for the digital input on the connector BM60-J4-ID4,
•(3142): Setting for the digital input on the connector BM60-J4-ID7,
•(3143): Setting for the digital input on the connector BE60-J4-ID1,
•(3144): Setting for the digital input on the connector BE60-J4-ID2,
•(3145): Setting for the digital input on the connector BE60-J4-ID3,
•(3146): Setting for the digital input on the connector BE60-J4-ID4.
•
•(3151): Setting for the analog input on the connector BE60-J9-B1,
•(3152): Setting for the analog input on the connector BE60-J9-B2,
•(3153): Setting for the analog input on the connector BE60-J10-B3,
•(3154): Setting for the analog input on the connector BE60-J10-B4.

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8 - WATER EVAPORATOR
8.1 - Function
The CLIMATIC™ 60 controls the chilled or heat temperature according to the specifyd set point. The desired set
point can be set by different solutions:
8.2 - Description
The CLIMATIC™ 60 offers various possibilities to specify the water evaporator set point.
8.2.1 - 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 pre-defining 2 different water set points corresponding to 2
outside temperatures.
8.2.2 - Fix value
In this case the outside temperature has no effect on the water set point and the set point (3238) and (3239) must
be set at the same value.
8.2.3 - External current 4/20mA signal
In this case the actual set point is calculated according to the analog input current. The set point (3238) and (3239)
specifyd the corresponding set point for 4mA and for 20mA.

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8.2.4 - External second set point
In this case the actual set point is specifyd by one of the 2 set point (3238) and (3239). The final set point depends
on the status of the digital dry contact allocated to this function.
8.2.5 - External current 4/20mA offset
In this case the set point is set by one of the previous solution and can be adjust with an offset of +/- 1.0°C.
8.2.6 - C60 value
The CLIMATIC™ 60 receives the water set point from the DC60. If the set point read is different from the one
calculated by the CLIMATIC™ 60, the new set point is set by the DC60 during the actual zone. Each time the zone
is changing, the DC60 set point is overwritten by the CLIMATIC™ 60 set point.
8.2.7 - BMS value
The CLIMATIC™ 60 receives the water set point from the BMS. Refers to the “BMS” paragraph for more details.
The cooling and heating set points can be pre-specified according to the scheduling and can take different mode
for each schedule mode (A, B, C, D, and BMS).

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8.3 - Settings
The different settings to adjust the water evaporator set points are available in the menu:
8.3.1 - COOLING MODE
•(3236): Minimum of outside air temperature corresponding to the water evaporator set point (3238) (used
only for dynamic set point),
•(3237): Maximum of outside air temperature corresponding to the water evaporator set point (3239) (used
only for dynamic set point),
•(3238):
oDynamic set point:
Water evaporator temperature set point desired corresponding to outside air temperature (3236),
oFix set point:
Water evaporator temperature set point desired.
oExternal current 4/20mA signal:
Water evaporator temperature set point corresponding to a current signal of 4mA.
oExternal second set point:
First water evaporator temperature set point corresponding to a dry contact opened.
•(3239):
oDynamic set point:
Water evaporator temperature set point desired corresponding to outside air temperature (3237),
oFix set point:
Water evaporator temperature set point desired.
oExternal current 4/20mA signal:
Water evaporator temperature set point corresponding to a current signal of 20mA.
oExternal second set point:
Second water evaporator temperature set point corresponding to a dry contact closed.
8.3.2 6 HEATING MODE
•(3246): Minimum of outside air temperature corresponding to the water evaporator set point (3248) (used
only for dynamic set point),
•(3247): Maximum of outside air temperature corresponding to the water evaporator set point (3249) (used
only for dynamic set point),
•(3248):
oDynamic set point:
Water evaporator temperature set point desired corresponding to outside air temperature (3246),
oFix set point:
Water evaporator temperature set point desired.
oExternal current 4/20mA signal:
Water evaporator temperature set point corresponding to a current signal of 4mA.
oExternal first set point:
First water evaporator temperature set point corresponding to a dry contact opened.
•(3249):
oDynamic set point:
Water evaporator temperature set point desired corresponding to outside air temperature (3247),
oFix set point:
Water evaporator temperature set point desired.
oExternal current 4/20mA signal:
Water evaporator temperature set point corresponding to a current signal of 20mA.
oExternal second set point:
Second water evaporator temperature set point corresponding to a dry contact closed.

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8.4 6 Control
The Climactic™60 adjusts and hold the fluid 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 calculates
constantly 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 reach 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.
Stage
Minimum
Inlet temp.
(°C)
Maximum
capacity factor
(%)
Expression Compressor
ON circuit 1
Compressor
ON circuit 2
0 0 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
Difference between
the outlet water
temperature and the
set point
Water Temperature
Change rate
0
+ 2K
-
-
FAST
SLOW
CF FROZEN
CF INCREASES
(Start more Capacity Stages)
CF FROZEN
CF DECREASES
(Removes Capacity Stages)
+ 1K
SLOW
FAST

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9 - PUMP EVAPORATOR MANAGEMENT
9.1 - Function
The CLIMATIC™ 60 offers in option a solution to manage a single or double evaporator pump(s).
9.2 - Description
In case of double pumps the CLIMATIC™ 60 can manage various possibilities of operating of the pumps.
9.2.1 - Priority to the pump 1
The CLIMATIC™ 60 specifies the priority to the pump 1 to start first. The pump 2 is used only as backup pump and
will start only if the pump 1 is in alarm. The pump 1 is kept ON as soon as the machine is enabled.
9.2.2. - Priority auto to the pump 1
Same configuration as the case 1, except that the pump will be stopped in case of dead zone changeover (winter /
summer).
9.2.3 - Priority to the pump 2
The CLIMATIC™ 60 specifies the priority to the pump 2 to start first. The pump 1 is used only as backup pump and
will start only if the pump 2 is in alarm. The pump 2 is keep ON as soon as the machine is enabled.
9.2.4 - Priority auto to the pump 2
Same configuration as the case 3, except that the pump will be stopped in case of dead zone changeover (winter /
summer).
9.2.5 - No Priority
The CLIMATIC™ 60 specifies automatically the priority of the pump according the operating hour counter. The first
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 02h00 am to re-specify the priority.
9.2.6 - No Priority auto
Same configuration as the case 5, except that the pump will be stopped in case of dead zone changeover (winter /
summer).
9.3 - Settings
The different settings to adjust the pump mode are available in the menu:
•(3371): Type of rotation of the pump(s),

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10 - PUMP EVAPORATOR FLOW CONTROL
10.1 - Function
The ClimaticTM60 offers the possibility to have a flow control in option.
10.2 - Description
There is up to 4 modes to manage the evaporator water flow.
10.2.1 - Fix speed
The CLIMATIC™ 60 maintains a fix flow according to the maximum speed desired. The flow is set to the minimum
flow desired only when none compressor is running.
10.2.2 - Fix delta T°
The CLIMATIC™ 60 maintains a fix delta of temperature according to the inlet and outlet temperature probe on the
evaporator. The delta of temperature desired is customized in the menu (3374).

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10.2.3 - Fix delta P
The CLIMATIC™ 60 maintains a fix delta of pressure according to the transducers (in and out) on the pump. The
delta of pressure desired is customized in the menu (3375).
10.2.4 - Fix Out P
The CLIMATIC™ 60 maintains a fix out pressure according to the out transducer on the pump. The output pressure
desired is customized in the menu (3376).
10.3 - Settings
The different settings to adjust the flow control are available in the menu:
•(3372): Type of flow control,
•(3374): Delta of temperature desired on the evaporator water (Outlet - Inlet),
•(3375): Delta of pressure desired on the water pump (Out - In),
•(3376): Output pressure desired on the water pump (Out),
•(3377): Minimum of flow on the evaporator water,
•(3378): Maximum of flow on the evaporator water.