CAPACITOR | COMPLETE C CONTROL |
COMPRESSOR CONTACTOR |
|
LINE
LOAD
TRANSFORMER | ECM CONTROL | |
BOARD | ||
|
Fig. 25 — 50PTH,PTV,PTD Typical Single-Phase Line Voltage Power Connection
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 5.
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
1.Pass control wires through the hole provided in the 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.
Table 5 — Field-Supplied Sensors for
WSHP Open Controller
SENSOR | NOTES | |
Space Temperature Sensor | Field Installed (Must be used with | |
(SPT) | WSHP Open controller.) | |
Outdoor Air | Network Sensor | |
Temperature Sensor | ||
| ||
Indoor Air Quality Sensor | Required only for demand | |
(Separate Sensor) | control ventilation. | |
Space Relative | Separate Sensor | |
Humidity Sensor | ||
|
NOTE: BACview6 Handheld or Virtual BACview can be used as the user interface.
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
The WSHP Open system offers the following SPT sensors. See Table 6.
| Table 6 — SPT Sensors | |||
|
|
|
| |
SENSOR | PART |
| FEATURES | |
NUMBER |
| |||
|
|
| ||
SPT | SPS | • Local access port | ||
Standard | • No operator control | |||
| ||||
|
| • Slide potentiometer to adjust set point | ||
SPT Plus | SPPL | • Manual on button to override schedule | ||
• LED to show occupied status | ||||
|
| |||
|
| • Local access port | ||
|
| • | LCD display | |
|
| • | Manual on button to override schedule | |
SPT Pro |
| • | Warmer and cooler buttons to adjust set point | |
SPP | • | 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 | ||
SPT Pro |
| • Warmer and cooler buttons to adjust set point | ||
SPPF | • Info button to cycle through zone and outside | |||
Plus |
| air temperatures, set points, and local override | ||
|
| |||
|
|
| time | |
|
| • Local access port | ||
|
| • Fan speed* | ||
*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 combina- tions of devices wired in a
•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 BACview6 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 7.
Table 7 — Rnet Wiring Specifications
RNET WIRING SPECIFICATIONS
| Description |
| 4 conductor, unshielded, CMP, |
|
| plenum rated cable | |
|
|
| |
| Conductor |
| 18 AWG |
| Maximum Length |
| 500 ft |
| Recommended Coloring |
| Jacket: white |
|
| Wiring: black, white, green, red | |
|
|
| |
| UL Temperature |
| 32 to 167 F |
| Voltage |
| |
| Listing |
| UL: NEC CL2P, or better |
| LEGEND |
| |
AWG — American Wire Gage |
| ||
CMP | — Communications Plenum Cable |
| |
NEC | — National Electrical Code |
| |
UL | — Underwriters Laboratories |
| |
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