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TranquiliTy® 30 (SE) PrEMiEr TWO-STaGE SEriES– iOM
Models:
SE
Performance Troubleshooting
024-072
Symptom
Htg Clg
X
X
Insufficient capacity/
X
Not cooling or heating
properly
X
X
X
X
X
X
X
High Head Pressure
X
X
X
X
X
X
Low Suction Pressure
X
X
Low Discharge Air
Temperature in Heating
X
High humidity
PA G E : 6 2
C r e a t e d : M a r c h 6 , 2 0 2 4
Possible Cause
X
Dirty filter
Reduced or no airflow in heating
X
Reduced or no airflow in cooling
X
Leaky duct work
X
Low refrigerant charge
X
Restricted metering device
X
Defective reversing valve
X
Thermostat improperly located
X
Unit undersized
X
Scaling in water heat exchanger
X
Inlet water too hot or cold
Reduced or no airflow in heating
Reduced or no water flow in
X
cooling
X
Inlet water too hot
Air temperature out of range in
heating
X
Scaling in water heat exchanger
X
Unit overcharged
X
Non-condensables in system
X
Restricted metering device
Reduced water flow in heating
Water temperature out of range
X
Reduced airflow in cooling
X
Air temperature out of range
X
Insufficient charge
Too high of airflow
Poor performance
X
Too high of airflow
X
Unit oversized
Table continued on next page
Solution
Replace or clean.
Check for dirty air filter and clean or replace.
Check fan motor operation and airflow restrictions.
Too high of external static? Check static vs. blower table.
Check for dirty air filter and clean or replace.
Check fan motor operation and airflow restrictions.
Too high of external static? Check static vs. blower table.
Check supply and return air temperatures at the unit and at distant
duct registers. If significantly different, duct leaks are present.
Check superheat and subcooling per chart.
Check superheat and subcooling per chart. Replace.
Perform RV touch test.
Check location and for air drafts behind stat.
Recheck loads & sizing. Check sensible cooling load and heat
pump capacity.
Perform scaling check and clean if necessary.
Check load, loop sizing, loop backfill, ground moisture.
Check for dirty air filter and clean or replace.
Check fan motor operation and airflow restrictions.
Too high of external static? Check static vs. blower table.
Check pump operation or valve operation/setting.
Check water flow. Adjust to proper flow rate.
Check load, loop sizing, loop backfill, ground moisture.
Bring return air temperature within design parameters.
Perform scaling check and clean if necessary.
Check superheat and subcooling. Re-weigh in charge.
Vacuum system and re-weigh in charge.
Check superheat and subcooling per chart. Replace.
Check pump operation or water valve operation/setting.
Plugged strainer or filter? Clean or replace.
Check water flow. Adjust to proper flow rate.
Bring water temperature within design parameters.
Check for dirty air filter and clean or replace.
Check fan motor operation and airflow restrictions.
Too high of external static? Check static vs. blower table.
Too much cold vent air? Bring entering air temperature within
design parameters.
Check for refrigerant leaks.
Check fan motor speed selection and airflow chart.
See 'Insufficient Capacity'
Check fan motor speed selection and airflow chart.
Recheck loads & sizing. Check sensible cooling load and heat
pump capacity.
w w w. c l i m a t e m a s t e r. c o m
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Table of Contents
Troubleshooting
