17
INPUTS MENU [2]
ITEM FORMAT UNITS
0 oPEn/CLoS -
1 [1] oPEn/CLoS -
2 oPEn/CLoS -
3 oPEn/CLoS -
4 [1] oPEn/CLoS -
5 [1] oPEn/CLoS -
6 [1] oPEn/CLoS -
7 [1] oPEn/CLoS -
8 [1] oPEn/CLoS -
9b
1
b
2
b
3
-
10 [1] b
1
b
2
b
3
-
LEAVING WATER TEMPERATURE CONTROL
SETPOINT - °C R-407C
Minimum cooling value
Water 5.0
Medium brine 0.0
Brine -10.0
Maximum cooling value 20.0
Feedback setpoint, cooling 6.0
Minimum heating value 20.6
Maximum heating value 51.7
Feedback setpoint heating 48.0
ENTERING WATER TEMPERATURE CONTROL
SETPOINT - °C R-407C
Minimum cooling value
Water 11.1
Medium brine 6.1
Brine -3.9
Maximum cooling value 26.1
Feedback setpoint, cooling 12.0
Minimum heating value 14.4
Maximum heating value 45.6
Feedback setpoint heating 42.0
4.3.9 - Description of the Inputs menu
1 This item is displayed in certain unit configurations only
2 Access to this menu is read-only.
COMMENTS
Remote contact 1 status.
This contact is used to start and stop the unit. This contact is only valid, if the unit is in the remote operating control
(rEM) mode. See section 3.6 for the description of the connections of this contact.
Remote contact 2 status.
This contact is used to select the heating or cooling mode. for heat pumps or for boiler start-up. It is also used to
change over to heat reclaim mode for cooling only units. This contact is only valid, if the unit is in the remote
operating control (rEM) mode. See section 3.6 for the description of the connections of this contact.
Remote contact 3 status.
The operation of this contact depends on the unit type.
Single-circuit unit: this contact can be used either to limit unit demand or to select a setpoint, as described in User
Configuration. If this contact is used for selecting a setpoint it is only active if the unit is in the remote operating
control mode. If the contact is used to limit the demand of the unit, it is active in all operating types.
Open contact: unit capacity is not limited or unit control is based on setpoint 1.
Closed contact: unit capacity is limited at limit setpoint 1 or unit control is based on setpoint 2.
See section 4.3.11.3 for the configuration of contact 3 - section 5.6.1 for the description of the setpoint selection -
section 5.7 for the description of the demand limit function and 3.6 for the description of the connection of contact 3
for single-circuit units.
Dual-circuit units: this contact is multiplexed with contact 4 to permit the selection of a demand limit point. This
contact is active in all operating types. See section 3.6.5 for the description of this contact and section 5.7 for the
description of the demand limit function.
Remote contact 4 status.
This contact is only used for dual-circuit units: this contact is multiplexed with contact 3 to permit selection of a
demand limit value. This contact is active in all operating types. See section 3.6.5 for the description of this contact
and section 5.7 for the description of the demand limit function.
Remote contact 5 status.
This contact is only used for dual-circuit units: this contact is multiplexed with contact 6 to permit selection of a
setpoint. This contact is only active in the remote operating control mode. See section 3.6.6 for the description of this
contact and section 5.6.1 for the description of the setpoint selection function.
Remote contact 6 status.
This contact is only used for dual-circuit units: this contact is multiplexed with contact 5 to permit selection of a
setpoint. This contact is only active in the remote operating control mode. See section 3.6.6 for the description of this
contact and section 5.6.1 for the description of the setpoint selection function.
Interlock status. When this contact opens the unit stops or is prevented from starting and an alarm is created. This
contact is used to control the water flow. In addition, a customer safety device can be connected in series with this
contact (see section 3.6).
Evaporator water pump run contact status. When this contact opens while an evaporator pump has received a
command to be on then a pump failure alarm is tripped.
Condenser water pump run contact status. When this contact opens while a condenser pump has received a
command to be on then a pump failure alarm is tripped.
Compressor fault contacts, circuit A b
1
= fault A1 b
2
= fault A2
Compressor fault contacts, circuit B b
1
= fault B1 b
2
= fault B2
RESET THRESHOLDS IN COOLING OR HEATING MODE
Reset threshold Zero Full
Reset based on outdoor -10 to 51 °C -10 to 51 °C
air temperature
Reset based on 0 to 11.1 °C 0 to 11.1 °C
Delta T
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