Lennox CLIMATIC 60 User Manual page 14

Air cooled chiller 9 - 1000 kw
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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.
• 12 •
CL60-AC CHILLER-IOM-1011-E

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