Carrier 30RA/RH, 30RY/RYH manual Description of the User 1 Configuration sub-menu

4.3.11.3 - Description of the User 1 Configuration sub-menu

USER 1 CONFIGURATION SUB-MENU [2]

ITEM	FORMAT	UNITS	DEFAULT	COMMENTS
0	USEr MEnu	-	-	When selected this item authorises return to the previous menu.
2 [1]	YES/no	-	no	Ramp loading select. For units with more than one compressor only.
				Yes = ramp enabled
				No = ramp disabled
				This configuration enables the ramp to be activated for heating or cooling (depending on configuration): the
				maximum rate (in °C/min) of temperature drop or rise for the heat exchanger water (leaving or entering, upon
				configuration). Ramp setting value can be configured in the Setpoint menu.
3	1 to 15	min	1	Delay at start-up. This value is reinitialised after power-up or when both circuits are halted by local, remote or
				CCN command. No compressor will be started up until this pause has expired. However, the evaporator pump
				command will be activated immediately. The safety lockout loop will not be checked until the pause has
				expired.
4	0/1/2/3/4	-	0	Pump sequence select
				0 = no pump
				1 = one pump only
				2 = two pumps with auto rotation
				3 = pump #1 manual select
				4 = pump #2 manual select
				If the auto sequence is selected, the pump change-over occurs when the rotation delay is elapsed. If the
				manual sequence is selected then, the selected pump is used in priority. Change-over occurs if one pump fails.
5 [1]	24 to 3000	hours	48	Pump changeover delay. Displayed if auto pump sequence is selected. This parameter is used for pump
				auto-rotation: the control tries to limit the pump run time difference to the pump changeover delay value.
				Change-over between pumps occurs when this difference becomes greater than the configured pump
				changeover delay.
6 [1]	«YES/no»	-	noi	Pump shutdown in standby mode
				Displayed if the unit controls a water pump. If this parameter is validated, the pump will be shut down when
				the standby mode is active (in automatic heating/cooling changeover). It automatically restarts in heating or
				cooling mode.
7 [1]	0/1	-	0	Contact 3 select (for single-circuit units)
				0 = input is used for demand limit command control
				1 = input is used for dual setpoint command control
				Determines whether contact 3 is used for remote demand limit or dual setpoint control. For single-circuit units
				only.
8	0/1/2	-	0	Cooling setpoint reset select. See section 5.6.2.
				0 = reset not selected
				1 = reset based on outdoor temperature
				2 = reset based on return water temperature
9 [1]	0/1/2	-	0	Heating setpoint reset select. See section 5.6.2
				0 = reset not selected
				1 = reset based on outdoor temperature
				2 = reset based on return water temperature
10	«YES/no»	-	no	Boiler control select
				Yes = boiler controlled by the unit
				No = boiler not controlled
11 [1]	-15 to 0	°C	-10	Boiler threshold. Outdoor air temperature limit; if the temperature is lower, the heat pump is stopped or only
				the boiler is used for hot water production. Only for heat pumps controlling an additional boiler.
12 [1]	-20 to 0	°C	-15	Operating threshold, heating mode. Outside air temperature threshold below which the heat pump shuts
				down. The unit switches the electric heaters on and off (if these exist). For heat pumps only.
13 [1]	-5 to 21	°C	5	Electric heating stage threshold. Maximum outdoor air temperature threshold for the use of electric heating
				stages. Only for heat pumps, equipped with optional additional electric heating stages.
14 [1]	«YES/no»	-	no	Electric heating safety stage. In this configuration the last electric heating stage is only activated in the safety
				mode (in case of a unit fault that prevents unit operation in heat pump mode).The other electric heating stages
				operate normally. See section 5.12.
15 [1]	0 to 60	minutes		Electric heating stage operation schedule. Permits configuration of a start-up delay after unit start-up during
				which the electric heater stages are not allowed to start.
16 [1]	«YES/no»	-	no	Quick start-up, electric heater stages in defrost mode. If a circuit switches to defrost mode, the electric
				heater stages are allowed to start up immediately. For heat pumps only.
17 [1]	«YES/no»	-	no	Automatic cooling/heating changeover select. Permits activation of the automatic changeover function.
				Caution: This function requires a special operation for control contacts 1 and 2, if the machine is under remote
				control (see section 3.6.3).
18	«YES/no»	-	yes	Extended menu select
				Yes = menu description available
				No = menu description not available
				This item authorises activating or inhibiting the menu item expanded display.

1This item shall be masked when not used.

2Access to menu is read/write.

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