Carrier 30RA/RH, 30RY/RYH manual Description of the Inputs menu

LEAVING WATER TEMPERATURE CONTROL

SETPOINT - °C	R-22/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	56.1
Feedback setpoint heating	48.0
ENTERING WATER TEMPERATURE CONTROL
SETPOINT - °C	R-22/R-407C
Minimum cooling value
Water	10.0
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	50.0
Feedback setpoint heating	42.0

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

4.3.9 - Description of the Inputs menu

INPUTS MENU [2]

ITEM	FORMAT	UNITS	COMMENTS
0	oPEn/CLoS	-	Remote contact 1 status.
			If the auto cooling/heating changeover function is not selected (User Configuration 1), this contact is used to start and
			stop the unit. If the auto cooling/heating changeover function is selected, this contact is multiplexed with contact 2 to
			permit starting and stopping the unit and the selection of heating/cooling/auto. 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.
1 [1]	oPEn/CLoS	-	Remote contact 2 status.
			If the auto cooling/heating changeover function is not selected (User Configuration 1), this contact is used to select the
			heating or cooling mode. If the auto cooling/heating changeover function is selected, this contact is multiplexed with
			contact 1 to permit starting and stopping the unit and the selection of heating/cooling/auto. 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.
2	oPEn/CLoS	-	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.
3	oPEn/CLoS	-	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.
4 [1]	oPEn/CLoS	-	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.
5 [1]	oPEn/CLoS	-	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.
6 [1]	oPEn/CLoS	-	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).
7	oPEn/CLoS	-	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.
8 [1]	b1b2b3	-	Compressor feedback contacts, circuit A	b1 = feedback A1	b2 = feedback A2	b3 = feedback A3
9 [1]	b1b2b3	-	Compressor feedback contacts, circuit B	b1 = feedback B1	b2 = feedback B2	b3 = feedback B3

1This item is displayed in certain unit configurations only

2Access to this menu is read-only.

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