Carrier AQUASNAP 30RB Manual De Controles Y Soluciones De Defectos página 94

4.3.11.3 - DESCRIPTION OF THE USER 1 CONFIGURATION SUB-MENU
USER 1 CONFIGURATION SUB-MENU
ITEM FORMAT
0 USEr Menu
1 [1] 0/1/2/3
2 0/1
3 YES/no
4 1 to 15
5 0/1/2/3/4
6 [1] 24 to 3000
7 [1] «YES/no»
8 [1] «YES/no»
9 0/1/2/3/4
10 0/1/2/3
11 «YES/no»
12 0/1/2
13 [1] nn
14 [1] nn
15 [1] nnn
16 [1] 0 to 60
17 [1] «YES/no»
18 [1] «YES/no»
19 [1] -20 to 0
1 This item shall be masked when not used.
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UNITS COMMENTS
- When selected this item authorises return to the previous menu.
Selection of lead circuit.
0 = automatic; 1 = circuit A; 2 = circuit B; 3 = circuit C
- Load sequence selection.
0 = balanced loading: compressors belonging to different circuits are started alternatively.
1 = priority loading: all compressors in the same circuit are started, before starting those in another circuit.
- Ramp loading select.
Yes = ramp enabled
No = ramp disabled
This configuration enables the ramp to be activated for heating or cooling (depending on configuration). This
item refers to the authorised low or high temperature rates, controlled by the water heat exchanger (°C/min).
Ramp setting value can be configured in the Setpoint menu.
min 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.
- 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.
hours 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.
- 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.
- Activation of the water flow control verification, when the pump is stopped.
Prevents the water flow alarm, when the pump has stopped and when the user/water flow rate safety loop is
closed.
- Cooling setpoint reset select.
0 = reset not selected
1 = reset based on outdoor temperature
2 = reset based on return water temperature
3 = reset based on 4-20 mA input (of the energy management option is used)
4 = reset based on room temperature (if the energy management option is used and the room temperature
sensor is installed)
- Heating setpoint reset select. Only displayed in heat pump mode.
0 = reset not selected
1 = reset based on outdoor temperature
2 = reset based on return water temperature
3 = reset based on 4-20 mA input (of the energy management option is used)
- Automatic cooling/heating changeover select.
- Demand limit
0 = no demand limit
1 = demand limit generated by the contact inputs
2 = demand limit generated by the 0-20 mA input
mA Maximum demand limit signal. Only displayed if the energy management option is used.
mA Minimum demand limit signal. Only displayed if the energy management option is used.
°C 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.
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.
- 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.
- Electric heater stages in defrost mode. If a circuit switches to defrost mode, the electric heater stages are
allowed to start up immediately.
°C Minimum outside temperature threshold in heating mode. If the outside temperature is below this value, no
compressor is allowed to start.