HTP SSC-119 Installation Start-Up Maintenance Parts

18
TROUBLESHOOTING
HOT WATER HAS A ROTTEN EGG ODOR
PROBLEM
POSSIBLE SOLUTION
Supply water has high sulfate or mineral content
Check with water quality specialist in your area. Have water
supply analyzed. Address water quality issues according to
specialist’s recommendations.
NO HOT WATER
PROBLEM
POSSIBLE SOLUTION
Zone valve not opening
Check or replace.
Circulator not operating
Check or replace
Tank control set too low
Raise tank temperature* (SEE NOTE BELOW)
Boiler control set too low
Raise boiler temperature
Wiring incorrect
Recheck wiring
Tank control failure
Replace control
Air trap in loop
Purge air
NOT ENOUGH HOT WATER
PROBLEM
POSSIBLE SOLUTION
Zone valve restriction
1” full bore replace zone valve
Circulator arrow reversed
Reverse circulator
Boiler temperature too low
Raise boiler temperature
Boiler sized too small
Check sizing chart
Tank sized too small
Check sizing chart
Demand flow rate too high
Check sizing chart
Install mixing valve, raise tank temperature*
Install flow regulator
Air trap in loop
Purge to remove air
Heat and tank come on together
Recheck wiring or coincidence
Draw tank down and lower thermostat. Recheck.
Not enough space heat
Boiler sized too small. Consult chart.
Slow recovery
Circulator head capacity too low
T & P VALVE DISCHARGES
PROBLEM
POSSIBLE SOLUTION
Tank temperature too high
Lower temperature on tank
Water expands when heated
Install expansion tank
Water pressure too high
Install pressure reducing valve
HOT TUBS, SPAS, MULTIPLE SHOWERS, HIGH DEMAND
PROBLEM
POSSIBLE SOLUTION
Pressure too low
Check line pressure for restriction
Recovery of tank slow
Slow startup boiler. See chart.
Not enough hot water
Boiler sized too small. See chart.
Check flow rate and compare to chart
Demand too great. Check flow rates and compare to chart.
Install mixing valve and/or flow restricting valve and raise
tank and boiler temperature*.
Table 5

HTP SSC-119 Specifications

General

Brand	HTP
Model	SSC-119
Category	Water Heater
Language	English