Bard PH1224, PH1230, PH1236 installation instructions Trouble Shooting Guide

Page 17

TROUBLE SHOOTING GUIDE

Symptom

Possible Causes

What to Check

How to Check or Repair

 

 

 

 

Compressor contactor

Contil circuit wiring

Check for R connection at unit

Run R connection to outdoor unit to power heat

does not energize

 

and 24 volt between R-C.

pump control.

(heating or cooling)

 

 

 

Compressor lock out

1. Check for 24V between

1. If no voltage between L1-C, turn thermostat off

 

 

 

L1-C on heat pump control

and on again to reset high pressure switch.

 

 

2. Check across high

2. If high pressure switch is open and will not reset,

 

 

pressure switch.

replace high pressure switch.

 

 

 

 

 

Compressor short cycle

Check for 24V between CC-C

If no voltage between CC-C, jumper speed up

 

protection

and Y-C on heat pump

terminal, and within 10 seconds power should

 

 

control.

appear between CC-C. Remove speed up jumper

 

 

 

after 10 seconds.

 

 

 

 

 

Heat pump control

Check all other possible

Replace heat pump control.

 

defective

causes. Manual 2100-065.

 

 

 

 

 

 

Contactor defective

Check for open or shorted

Replace contactor.

 

 

coil winding.

 

 

 

 

 

Fan outdoor motor

Motor defective

Check for open or shorted

Replace motor.

does not run

 

motor winding.

 

(cooling or heating

 

 

 

Motor capacitor defective

Check capacitor rating.

Replace capacitor.

except during defrost)

 

Check for open or shorted

 

 

 

 

 

 

capacitor.

 

 

 

 

 

 

Heat pump control

Check across fan relay on

Replace heat pump control.

 

defective

heat pump control. (Com-NC)

 

 

 

 

 

Reversing valve does

Reversing volve solenoid

Check for open or shorted

Replace solenoid coil.

not energize

coil defective

coil.

 

(heating only)

 

 

 

Heat pump control

Check for 24V between RV-C

1. Check control circuit wiring.

 

 

defective

and B-C.

2. Replace heat pump control

 

 

 

 

Unit will not go into

Temperature sensor or

Disconnect temperature

1. If unit goes through defrost cycle, replace

defrost

heat pump control

sensor from board and

temperature sensor.

(heating only)

defective

jumper across speed up

 

 

 

terminals and sen jump

2. If unit does not go through defrost cycle, replace

 

 

terminals. This should cause

heat pump control.

 

 

the unit to go through a

 

 

 

defrost cycle within one

 

 

 

minute.

 

 

 

 

 

Unit will not come out

Temperature sensor or

Jumper across speed up

1. If unit comes out of defrost cycle, replace

of defrost

heat pump control

terminals. This should cause

temperature sensor.

(heating only)

defective.

the unit to come out of defrost

2. If unit does not come out of defrost cycle,

 

 

within one minute.

replace heat pump control.

 

 

 

 

Manual 2100-344 Page 15

Image 17
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PH1224, PH1236, PH1230 specifications

Bard PH1230, PH1236, and PH1224 are advanced heating and cooling solutions that cater to both residential and commercial spaces. These units are engineered for efficiency, reliability, and comfort, making them ideal choices for any environment. Each model comes equipped with a host of features and technologies that set them apart in the HVAC market.

One of the primary characteristics of the Bard PH series is their compact design. These units are crafted to fit in tight spaces while still delivering powerful performance. This compact nature allows for easier installation, especially in areas where space is a constraint, such as classrooms, offices, and small living areas.

The PH1230, PH1236, and PH1224 all feature a robust and efficient heat pump system. This system allows the units to provide both heating and cooling, making them versatile options throughout the year. The heat pump technology ensures that energy consumption is minimized while maintaining optimal indoor temperatures. This leads to significant savings on energy bills, making these units both environmentally friendly and cost-effective.

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Durability is at the forefront of the Bard PH series’ design. Constructed with high-quality materials, these units are built to withstand harsh weather conditions. The exterior casing is resistant to corrosion, ensuring longevity and reliable performance even in the most challenging environments.

In summary, Bard PH1230, PH1236, and PH1224 are exceptional heating and cooling solutions that blend efficiency, versatility, and durability. With features like compact design, advanced heat pump technology, efficient filtration systems, noise reduction capabilities, and robust construction, these units are well-suited for a variety of applications. Whether for residential or commercial use, the Bard PH series stands out as a top choice for anyone looking to enhance comfort and energy efficiency in their space.