Carrier AQUAZONE 50PSH Installation And Service Instructions Manual page 28

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HEATER SWITCH
THERMOSTAT
Fig. 30 — AMV Valve Wiring
Fig. 31 — Taco SBV Valve Wiring
WSHP OPEN WIRING — The WSHP Open controller will
be factory mounted to the unit control panel and wired to the
Complete C or Deluxe D control board, however, the system
wiring will need to be completed utilizing WSHP Open con-
troller wiring diagrams and the Third Party Integration (TPI)
Guide. Factory installation includes harness, LWT (leaving
water temperature), supply air, and condensate sensor.
WARNING
Disconnect all power to the unit before performing mainte-
nance or service. Unit may automatically start if power is
not disconnected. Failure to follow this warning could
cause personal injury, death, and/or equipment damage.
Wiring Sensors to Inputs — Sensors can be wired to the
WSHP Open controller's inputs. See Table 7.
All field control wiring that connects to the WSHP Open con-
troller must be routed through the raceway built into the corner
post. The raceway provides the UL required clearance between
high and low-voltage wiring.
1. Pass control wires through hole provided in corner post.
2. Feed the wires through the raceway to the WSHP Open
controller.
3. Connect the wires to the removable Phoenix connectors.
4. Reconnect the connectors to the board.
Field-Supplied Sensor Hardware — The WSHP Open con-
troller is configurable with the following field-supplied sen-
sors. See Table 7.
Table 7 — Field-Supplied Sensors for
WSHP Open Controller
SENSOR
Space Temperature Sensor
(SPT)
Outdoor Air
Temperature Sensor
Indoor Air Quality Sensor
(Separate Sensor)
Space Relative
Humidity Sensor
NOTE: BACview 6 Handheld or Virtual BACview can be used as the user
interface.
a50-8441
AMV
3
TACO VALVE
a50-8442
NOTES
Field Installed (Must be used with
WSHP Open controller.)
Network Sensor
Required only for demand
control ventilation.
Separate Sensor
For specific details about sensors, refer to the literature sup-
plied with the sensor.
Wiring a SPT Sensor — A WSHP Open controller is connect-
ed to a wall-mounted space temperature (SPT) sensor to moni-
tor room temperature using a Molex plug.
The WSHP Open system offers the following SPT sensors.
See Table 8.
Table 8 — SPT Sensors
PART
SENSOR
NUMBER
SPT
SPS
Standard
SPT Plus SPPL
SPT Pro SPP
SPT Pro
SPPF
Plus
*The SPT Pro Plus fan speed adjustment has no effect in this application.
Wire SPT sensors to the WSHP Open controller's Rnet port.
An Rnetbus can consist of any of the following combinations
of devices wired in a daisy-chain configuration:
• 1 SPT Plus, SPT Pro, or SPT Pro Plus sensor
• 1 to 4 SPT Standard sensors
• 1 to 4 SPT Standard sensors and 1 SPT Plus, SPT Pro, or
SPT Pro Plus sensor
• Any of the above combinations, plus up to 2 BACview
Handheld but no more than 6 total devices
NOTE: If the Rnetbus has multiple SPT Standard sensors, each
sensor must be given a unique address on the Rnetbus. See the
Carrier Open Sensor Installation Guide.
Use the specified type of wire and cable for maximum signal
integrity. See Table 9.
Table 9 — Rnet Wiring Specifications
RNET WIRING SPECIFICATIONS
Description
Conductor
Maximum Length
Recommended Coloring
UL Temperature
Voltage
Listing
LEGEND
AWG — American Wire Gage
CMP — Communications Plenum Cable
NEC — National Electrical Code
UL — Underwriters Laboratories
To wire the SPT sensor to the controller:
1. Partially cut , then bend and pull off the outer jacket of
the Rnet cable(s), being careful not to nick the inner
insulation.
2. Strip about 1 / in. of the inner insulation from each wire.
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See Fig. 32.
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FEATURES
• Local access port
• No operator control
• Slide potentiometer to adjust set point
• Manual on button to override schedule
• LED to show occupied status
• Local access port
• LCD display
• Manual on button to override schedule
• Warmer and cooler buttons to adjust set point
• Info button to cycle through zone and outside
air temperatures, set points, and local override
time
• Local access port
• LCD display
• Manual on button to override schedule
• Warmer and cooler buttons to adjust set point
• Info button to cycle through zone and outside
air temperatures, set points, and local override
time
• Local access port
• Fan speed*
4 conductor, unshielded, CMP,
plenum rated cable
18 AWG
500 ft
Jacket: white
Wiring: black, white, green, red
32 to 167 F
300-vac, power limited
UL: NEC CL2P, or better
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