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T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y
Tr a n q u i l i t y
®
( T R ) S e r i e s
R e v. : N o v e m b e r 2 , 2 0 2 0
c l i m a t e m a s t e r. c o m
Performance Troubleshooting Htg Clg Possible Cause
Solution
Insufficient capacity/ Not
cooling or heating
X
X Dirty filter
Replace or clean.
X
Reduced or no air flow in heating
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.
X Reduced or no air flow in cooling
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.
X
X Leaky duct work
Check supply and return air temperatures at the unit and at distant duct
registers if significantly different, duct leaks are present.
X
X Low refrigerant charge
Check superheat and subcooling per chart.
X
X Restricted metering device
Check superheat and subcooling per chart. Replace.
X Defective reversing valve
Perform RV touch test.
X
X Thermostat improperly located
Check location and for air drafts behind stat.
X
X Unit undersized
Recheck loads & sizing. Check sensible clg. load and heat pump
capacity.
X
X Scaling in water heat exchanger
Perform scaling check and clean if necessary.
X
X Inlet water too hot or too cold
Check load, loop sizing, loop backfill, ground moisture.
High Head Pressure
X
Reduced or no air flow in heating
Check for dirty air filter and clean or replace.
Check fan motor operation and air flow restrictions.
Too high of external static. Check static vs. blower table.
X Reduced or no water flow in cooling
Check pump operation or valve operation/setting.
Check water flow. Adjust to proper flow rate.
X Inlet water too hot
Check load, loop sizing, loop backfill, ground moisture.
X
Air temperature out of range in heating
Bring return air temperature within design parameters.
X Scaling in water heat exchanger
Perform scaling check and clean if necessary.
X
X Unit overcharged
Check superheat and subcooling. Re-weigh in charge.
X
X Non-condensables in system
Vacuum system and re-weigh in charge.
X
X Restricted metering device.
Check superheat and subcooling per chart. Replace.
Low Suction Pressure
X
Reduced water flow in heating.
Check pump operation or water valve operation/setting.
Plugged strainer or filter. Clean or replace.
Check water flow. Adjust to proper flow rate.
X
Water temperature out of range.
Bring water temperature within design parameters.
X Reduced air flow in cooling.
Check for dirty air filter and clean or replace.
Check fan motor operation and air flow restrictions.
Too high of external static. Check static vs. blower table.
X Air temperature out of range
Too much cold vent air? Bring entering air temperature within design
parameters.
X
X Insufficient charge
Check for refrigerant leaks.
Low Discharge Air
Temperature in Heating
X
Too high of air flow
Check fan motor speed selection and air flow chart.
X
Poor performance
See ‘Insufficient Capacity’
High humidity
X Too high of air flow
Check fan motor speed selection and airflow chart.
X Unit oversized
Recheck loads & sizing. Check sensible clg load and heat pump
capacity.
Performance Troubleshooting
Summary of Contents for Tranquility TR Series
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