Carrier 30GK manual Description of the Setpoints menu, Setpoints Menu Format Units Range Comments

4.5.4 - Description of the Setpoints menu

SETPOINTS MENU [2]

ITEM	FORMAT	UNITS	RANGE	COMMENTS
0	±nn.n	°C	See table below	This item lets you display and modify Cooling setpoint 1*
1	±nn.n	°C	See table below	This item lets you display and modify Cooling setpoint 2*
2	nnn	°C	See table below	This item lets you display and modify Heating setpoint*, only displayed for heat pumps.
3 [1]	nnn	°C	See table below	This item lets you display and modify the condensing setpoint*. It is used by the control to regulate the fan
				stages or a variable-speed fan (air-cooled units) or the condenser water valve control (water-cooled
				units), if the unit is not in heat reclaim mode.
4 [1]	nnn	°C	See table below	This item lets you display and modify the heat reclaim setpoint*. As item 3, this is used for condensing
				setpoint control.
5	nnn	%	0 to 100	Capacity limit setpoint. Limitation by volt-free contact. This item is used to define the maximum capacity
				that the unit is authorised to use, if the capacity limit contact activate the limit. See section 5.8.
6 [1]	±nn.n	°C/min	0.1 to 1.1	Cooling ramp loading rate. This parameter is only accessible if the ramp function is validated in the User
				Configuration 1 menu. This item refers to the maximum rate of temperature rise in °C in the water heat
				exchanger in cooling mode. When capacity loading is effectively limited by the ramp, mode 11 is active.
7 [1]	±nn.n	°C/min	0.1 to 1.1	Heating ramp loading rate. This parameter is only accessible if the ramp function is validated in the User
				Configuration 1 menu. This item refers to the maximum rate of temperature drop in °C in the water heat
				exchanger in heating mode. When capacity loading is effectively limited by the ramp, mode 11 is active.
8 [1]	±nn.n	[3]	See table below	Zero reset threshold, cooling mode**
9 [1]	±nn.n	[3]	See table below	Full reset threshold, cooling mode**
10 [1]	±nn.n	°C	See table below	Full reset value, cooling mode**
11 [1]	±nn.n	[3]	See table below	Zero reset threshold, heating mode**
12 [1]	±nn.n	[3]	See table below	Full reset threshold, heating mode**
13 [1]	±nn.n	°C	-16 to 16	Full reset value, heating mode**

Legend

1This item is displayed in certain unit configurations only.

2All points contained in this table can be modified.

*Those setpoints can be used for entering or leaving water temperature control. By default the unit controls the evaporator entering fluid temperature. Leaving fluid temperature control requires a parameter modification in the Service Configuration menu.

**These parameters are only accessible when reset based on OAT or delta T has been selected in the User Configuration 1 menu. See section 4.5.7.3.

SETPOINT	DESCRIPTION	CONTROL FOR	CONTROL FOR
		LEAVING WATER	ENTERING WATER
Cooling	Minimum setpoint
	- Water	3.3°C	9.3°C
	- Medium Brine	-10°C	-4°C
	- Low Brine	-20°C	-14°C
	Maximum setpoint
Heating	Maximum setpoint	MCT - 4.0	MCT - 10.0

Note:

Three setpoint reset configuration modes can be selected in the Client1 menu: 1 Reset using an external 0-10 V d.c. signal

2 Reset using Delta T

3 Reset by external temperature sensor (air-cooled units only)

The items with zero reset or maximum reset are based on these three modes.

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