Carrier AQUASNAP 30RB Manual De Controles Y Soluciones De Defectos página 89

SETPOINTS MENU [2] (continued)
ITEM FORMAT UNITS
14 [2] ±nn.n [3]
15 [4] ±nn.n [3]
16 [4] ±nn.n °C
17 [4] ±nn.n [3]
18 [4] ±nn.n [3]
19 [4] ±nn.n °C
1 This item shall be masked when not used.
2 This item is displayed in certain unit configurations only.
3 Depends on the configuration of the reset type. If reset type is 1, 2 or 4 the unit is °C; if reset type is 3, the unit is mA.
3 bis The scale depends on the reset type selected.
4 Depends on the value of items 9 or 10 of the user configuration menu 1.
If the reset type selection point
= 0: reset not selected
= 1: reset based on outside temperature
= 2: reset based on temperature difference
= 3: reset based on 4-20 mA control
= 4: reset based on room temperature
RESET THRESHOLDS IN COOLING OR HEATING MODE
Reset threshold
Reset based on outdoor
air temperature
Reset based on
temperature difference
Reset based on
4-20 mA control
Reset based on
room temperature
4.3.9 - DESCRIPTION OF THE INPUTS MENU
INPUTS MENU [1]
ITEM FORMAT
0 oPEn/CLoS
1 oPEn/CLoS
2 [1] oPEn/CLoS
3 [1] oPEn/CLoS
4 oPEn/CLoS
5 [1] oPEn/CLoS
6 oPEn/CLoS
7 [1] oPEn/CLoS
8 [1] oPEn/CLoS
9 [1] oPEn/CLoS
10 [1] oPEn/CLoS
11 [1] oPEn/CLoS
12 [1] nn.n
13 [1] nn.n
14 [1]
15 [1]
16 [1]
17 [1]
18 [1]
19 [1] oPEn/CLoS
1 This item is displayed in certain unit configurations only
RANGE COMMENTS
[3 bis] Zero reset threshold, cooling mode
[3 bis] Full reset threshold, cooling mode
-16.6 to 16.6 Full reset value, cooling mode
[3 bis] Zero reset threshold, heating mode
[3 bis] Full reset threshold, heating mode
-16.6 to 16.6 Full reset value, heating mode
Zero Full
-10 to 51.6°C -10 to 51.6°C
0 to 13.6 0 to 13.6
0 to 11.1 °C 0 to 11.1 °C
-10 to 51.6°C -10 to 51.6°C
UNITS COMMENTS
- Remote contact 1 status (on/off switch).
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 4 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.
- Remote contact 2 status.
Status of remote contact 2. This contact permits the selection of a setpoint. This contact is only active if the unit is in
the remote operation type. See section 3.6.1 for the description of this contact and section 3.6.4 for the description of
the setpoint selection function.
- Remote contact 4 status.
If the automatic cooling/heating changeover function is not selected (User Configuration 1) this contact is used for the
selection of the heating or cooling operating mode. If the automatic cooling/heating changeover function is selected,
this contact is multiplexed with contact 1 to permit the starting and stopping of the unit and the selection of heating/
cooling auto. This contact is only valid, if the unit is in the remote operation control (rEM) mode.
- Remote contact 4 status.
This contact permits the remote selection of heat reclaim. This item is only displayed on chillers with heat reclaim
option.
- Status user safety contact or water flow control contact. If the contact is open, the unit stops.
- Contact status: pump operation status.
- Control box thermostat contact or reverse rotation contact.
- Remote contact 3 status. This contact permits selection of a demand limit. It is located on board PD5-BASE.
- Remote contact 3 bis status. This contact is only used if the energy management option is used. It is multiplexed
with contact 3 to permit selection of one of three demand limits.
- Ice storage remote contact status. This contact is located on board NRCP2 of the energy management option. It is
used during unit occupied periods to permit selection of a setpoint or ice storage setpoint.
- Unit occupied continued remote contact status. This contact is only used on units with energy management option
to maintain the occupied mode.
- User safety loop input status. This contact is accessible on the energy management option board. It can be used for
any customer safety loop that requires unit shut-down if it is closed.
mA Demand limit signal.
This contact is only displayed when the energy management option is selected. This contact permits changing the
lowest value, based on a linear interpolation from 0 to 100% depending on the input value.
mA Setpoint reset signal.
°C Room temperature value, only used if the energy management option is selected and the room temperature sensor
is installed.
°C Liquid subcooling temperature, circuit A.Only used if the heat reclaim option is selected.
°C Liquid subcooling temperature, circuit B. Only used if the heat reclaim option is selected.
°C Subcooling temperature, circuit A. Only used if the heat reclaim option is selected.
°C Subcooling temperature, circuit B. Only used if the heat reclaim option is selected.
°C Heat reclaim condenser water flow control. Controls the heat reclaim condenser water circulation.
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