Carrier AQUAZONE 50PSH, Инструкция по установке, запуску и обслуживанию

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ENERGY MANAGEMENT SWITCH (DELUXE D ONLY)
All units with Deluxe D control include an energy management
switch (EMS) relay that can be field wired to disable unit opera -
tion when a 24V signal is removed from the relay. Removing the
24V signal causes the relay to open, which cuts 24V power to the
unit control circuit. All unit components will be disabled when the
EMS is deactivated. See Fig. 17.
NOTE: Units with constant torque ECM motors may experience a
30 second delay between when the EMS is activated and when the
blower finally shuts off. Constant torque ECM blowers are factory
programmed with a 30 second delay when losing the control sig -
nal, to prevent nuisance shut downs.
BOILERLESS HEAT CONTROL (DELUXE D ONLY)
All units with Deluxe D control include a boilerless heat relay that
can be field wired to enable an external heat source when the
water loop temperature drops below the boilerless heat control set
point. See Fig. 17.
ALARM OUTPUT (ALL UNITS)
If the unit is being connected to a thermostat or DDC control with
an alarm indicator, this connection is made at the unit malfunction
output on the Unit Protection Module (UPM). See the Unit Protec -
tion Module heading in the Set Up Unit Controls section for fur -
ther details.
WSHP OPEN CONTROL
WSHP Open is a factory installed DDC control that requires
the use of Carrier ZS or WS sensors or the Carrier Equipment
Touch or System Touch for space temperature sensing. WSHP
Open is not compatible with thermostats or third party tem -
perature sensors.
All WSHP Open wiring is completed at the WSHP Open control
board. See Fig. 31 for details. For further instructions on WSHP
Open, please visit HVACPartners.com or Carrier.com for the
WSHP Open V4 Integration Guide and Points/Properties Guide.
CONTROL TRANSFORMER
All units include a 75VA transformer. The VA capacity of the
transformer should be considered when applying low voltage ac -
cessories, such as shut off valves, thermostats, or DDC controls.
Table 9 shows the VA draw of typical factory-mounted compo -
nents in the low voltage heat pump. The total VA draw of the heat
pump internal components plus any attached accessories must be
lower than the VA capacity of the unit control transformer.
Step 10 — Configure Unit Control Components
UNIT PROTECTION MODULE (UPM)
All units with Complete C, Deluxe D, or WSHP Open are factory
provided with a unit protection module. This UPM controls the
compressor and has built-in safeties. See Fig. 35.
Freeze Sensor
The default setting for the freeze limit trip is 26°F for applications
without anti-freeze. This can be changed to 15°F for applications
with anti-freeze by cutting the R30 resistor located on top of the
DIP switch SW1.
Fig. 35 — Unit Protection Module (UPM)
CAUTION
Exceeding the transformer capacity can result in low control
voltage, erratic unit operation or damage to the heat pump.
WARNING
To avoid possible injury or death due to electrical shock, open
the power supply disconnect switch and secure it in an open
position during installation.
CAUTION
If unit is employing a fresh water system (no anti-freeze pro -
tection), it is extremely important to have the Freeze1 R30
resistor set to 26°F in order to shut down the unit at the appro -
priate leaving-water temperature and protect your heat pump
from freezing if a freeze sensor is included.
1 Board Power Indicator
2 UPM Status LED Indicator
3 Water Coil Freeze Protection Temperature Selection [R30]
4 Air Coil Freeze Protection Temperature Selection
5 UPM Settings
6 Water Coil Freeze Connection
7 Air Coil Freeze Connection
8 LED Status-Diagnostic Connection
9 24VAC Power Input
10 Compressor Contact Output
11 High Pressure Switch Connection
12 Call for Compressor Y1
13 Low Pressure Switch Connection
14 24VAC Power Common
15 Condensate Overflow Sensor
16 Dry Contact
17 UPM Ground Standoff
1
2
3
4
5
6 7
9 10
11
12 13
17
14
15
16 8