CIAT Ereba He Series, Instruction Manual

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EN-61
EREBA He
COOLING
WUI Occupancy Air setpoint on WUI direct access Range Air setpoint on parameter menu Range
Cool Home Setpoint 20 to 38°C Cool Home Setpoint [P424] 20 to 38°C
Cool Sleep Setpoint 20 to 38°C Cool Sleep Offset [P425] 0 to 10°C
Cool Away Setpoint 20 to 38°C Cool Away Offset [P426] 0 to 10°C
HEATING
WUI Occupancy Air setpoint on WUI direct access Range Air setpoint on parameter menu Range
Heat Home Setpoint 12 to 34°C Heat Home Setpoint [P421] 12 to 34°C
Heat Sleep Setpoint 12 to 34°C Heat Sleep Offset [P422] -10 to 0°C
Heat Away Setpoint 12 to 34°C Heat Away Offset [P423] -10 to 0°C
Once air setpoints are defined, water setpoints must be configured (refer to §3.7. Unit with
remote interface). Please, find here below more details about water setpoint configuration.
Water setpoint configuration
The water setpoint calculation can be based on:
1/ Predefined Climatic Curves depending on OAT: climatic curves already preconfigured in
the control logic.
2/ Fixed Water Setpoint:
using a fixed value for each occupancy mode.
3/ Custom Climatic Curve
depending on OAT: define customized climatic curves in function
of the application.
4/ Offset on climatic curves (predefined and customer)
1/ Predefined climatic curves
COOLING: If the cooling climatic curve [P586] is configured to “1” or “2”, the water
setpoint will be calculated according to the selected cooling climatic curve.
Two predefined cooling climatic curves are available:
Climatic Curve Min. OAT Max. OAT Min. Water Temp Max. Water Temp Application
K1 20°C 40°C 5°C 10°C FCU’s
K2 20°C 40°C 10°C 18°C UFC
Cooling Climatic Curves
-
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45
OAT (°C)
K1
K2
Cooling Climatic Curves
Water Setpoint (
°C
)
If OAT is invalid (not transmitted by the Inverter, out-of-range value, etc.), the Water
Setpoint is equal to the current Min. Water Temp.
- If OAT is above the current Maximum OAT threshold, the Water Setpoint is equal to
the current Max. Water Temp.
4 - OPERATION