1.Shut off unit main power supply.

2.Loosen bolts on mounting bracket so that fan belt can be removed.

3.Loosen and remove the 2 motor mounting bracket bolts on left side of bracket.

4.Slide motor/bracket assembly to extreme right and lift out through space between fan scroll and side frame. Rest motor on a high platform such as a step ladder. Do not allow motor to hang by its power wires.

Replacing the WSHP Open Controller’s Bat-

tery — The WSHP Open controller’s 10-year lithium CR2032 battery provides a minimum of 10,000 hours of data retention during power outages.

NOTE: Power must be ON to the WSHP Open controller when replacing the battery, or the date, time and trend data will be lost.

1.Remove the battery from the controller, making note of the battery's polarity.

2.Insert the new battery, matching the battery's polarity with the polarity indicated on the WSHP Open controller.

TROUBLESHOOTING

(Fig. 34 and 35, and Table 29)

When troubleshooting problems with a WSHP, consider the following.

Thermistor — A thermistor may be required for single- phase units where starting the unit is a problem due to low voltage. See Fig. 34 for thermistor nominal resistance.

Control Sensors — The control system employs 2 nom- inal 10,000 ohm thermistors (FP1 and FP2) that are used for freeze protection. Be sure FP1 is located in the discharge fluid and FP2 is located in the air discharge. See Fig. 35.

WSHP Open Controller — With the WSHP Open con- troller option, the 100 most recent alarms can be viewed using the BACview6 alarm status and alarm history.

To view the alarms:

1. Navigate to the Alarm Status screen from the Home screen using the arrow softkeys. The screen will display the current alarm status, either normal or Alarm, and al- low for scrolling through the unit’s alarm status.

2. From the Alarm Status screen, press the Alarm softkey to view the 100 most recent alarms which are labeled with date and time for easy reference.

NOTE: Active faults can be viewed by scrolling down, these faults indicate a possible bad sensor or some condi- tion which may not merit an alarm.

3. To view alarms which have been corrected, scroll down through the Alarm screen to Return Top Normal screen.

NOTE: Alarms are automatically reset once alarm con- dition has been corrected.

See Table 29 for possible alarm cause and solution.

 

90.0

 

80.0

 

70.0

(kOhm)

60.0

50.0

Resistance

40.0

 

30.0

20.0

10.0

0.0

0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0

Temperature (degF)

Fig. 34 — Thermistor Nominal Resistance

 

AIR

 

 

 

 

AIRFLOW

COIL

AIRFLOW

 

 

 

 

 

(°F)

 

(°F)

 

 

 

a50-8163

 

 

 

 

 

THERMISTOR

 

 

 

 

 

 

 

 

EXPANSION

COAX

 

 

 

 

VALVE

 

 

 

 

FP2

FP1

 

 

CONDENSATE

 

 

 

 

OVERFLOW

LIQUID

 

 

 

(CO)

 

 

 

 

 

LINE

WATER IN

WATER OUT

LEGEND

 

 

 

AIR COIL

 

 

WATER

 

 

COAX — Coaxial Heat Exchanger

FREEZE

 

 

COIL

 

 

Airflow

 

PROTECTION

 

 

 

 

PROTECTION

 

Refrigerant Liquid Line Flow

Fig. 35 — FP1 and FP2 Thermistor Location

SUCTION

COMPRESSOR

DISCHARGE

40

Page 39 Page 41
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Image 40
Carrier PCV015-060 specifications Replacing the Wshp Open Controller’s Bat, Troubleshooting, A50-8163
Page 39 Page 41

PCV015-060 specifications

The Carrier PCV015-060 is a cutting-edge packaged cooling and heating unit designed for commercial applications that demand high efficiency, reliability, and adaptability. This model is particularly renowned for its robust performance, making it an ideal choice for businesses seeking optimal indoor climate control.

One of the standout features of the PCV015-060 is its impressive energy efficiency. Equipped with advanced scroll compressors, this unit operates with a higher energy efficiency ratio (EER), translating to lower operational costs and reduced environmental impact. The incorporation of eco-friendly refrigerants further bolsters its sustainability credentials, ensuring compliance with modern environmental regulations.

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Durability is another hallmark of the PCV015-060. The unit is constructed using high-quality materials designed to withstand varying environmental conditions, which enhances the lifespan of the system. Additionally, its modular design simplifies installation and service access, reducing downtime for businesses.

The versatility of the PCV015-060 is underscored by its capability to function effectively in numerous configurations, including rooftop installations and ground-mounted setups. It can efficiently handle diverse applications, from offices to retail spaces, making it an adaptable choice for many commercial needs.

In summary, the Carrier PCV015-060 offers a blend of energy efficiency, advanced technology, and durable construction, making it a formidable solution for businesses seeking reliable climate control. Its commitment to sustainability, user-friendly features, and versatile configurations solidify its standing as a premier choice for commercial heating and cooling needs. With the PCV015-060, businesses can ensure a comfortable environment for both employees and customers while maintaining operational efficiency.
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