Camus Hydronics Dynaforce Series Installation And Service Manual page 55

SYMPTOM
• Manual Reset Safety High Limit
tripped, outlet temperature in
excess of 210
• Alert: 63, 67, 79, 137, 276-281,
Manual Reset High
303-309
Limit Trips (if • ILK OFF
equipped)
• Outlet temperature has exceeded
40
• Alert: 124
Delta-T Limit
Tripped
• Stack temperature has exceeded
the limit temperature.
• Alert: 125
• Outlet temperature has exceeded
Temperature
limit temperature.
Overshoot
• Alert: 63, 67, 79, 137, 276-281,
303-309
• LCI OFF
• Inlet sensor, Alert: 91
• Outlet sensor, Alert: 92
Sensor Not
• DHW sensor, Alert: 93
Connected
• Stack sensor, Alert: 95
• Outdoor sensor, Alert: 96
• Fan refuses to rotate
Fan Not Turning • Alert 122, 123, 128, 129, 130, 131,
132
• Interrupted Air Switch error
• Alert: 67, 137, 303-310
Air Proving Switch • ILK OFF
• IAS OFF
• LCI error
• Alert: 63, 137, 276-281
• LCI OFF
Blocked Flue
Switch
FAILURE MODE
o F
o F over inlet temperature
• Verify that the capillary tube is broken. If this is the case, replace
Manual Reset High Limit
• Verify that the system is full of water and that all air has been
properly purged from the system.
• Verify that the boiler is piped properly.
• Verify that 120 VAC is being supplied to the boiler pump on a call
for heat. If voltage cannot be detected check wiring.
• Verify that the pump is circulating when 120 VAC is supplied. If
so, pump impeller may be stuck. Use a flat head screwdriver on
face of pump to turn impeller manually.
• If 120 VAC is present during a call for heat, but the pump still
does not circulate, replace pump.
Verify that the system is full of water and that all air has been
properly purged from the system.
• Verify that the boiler is piped properly.
• Verify that 120VAC is being supplied to the boiler pump on a call
for heat. If voltage cannot be detected check wiring.
• Verify that the pump is circulating when 120VAC is detected. If
not, pump impeller may be stuck. Use a flat head screwdriver on
face of pump to turn impeller manually
• If 120VAC is present during a call for heat, but the pump still
does not circulate, replace the pump.
• Purge all air from the piping
• Verify boiler water pressure exceeds 30 PSI
• The stack temperature has exceeded the maximum temperature
allowed.
• PVC: 149 F
o
• CPVC: 194 F
o
• AL29-4C, Stainless Steel: 250
• Measure the resistance of the flue sensor at room temperature, it
should be approximately 10kΩ.
• Verify that the system is full of water and that all air has been
properly purged from the system
• Verify that the boiler is piped properly.
• Verify that adequate power is supplied to pump on a call for heat.
If voltage cannot be detected check wiring
• Verify pump is circulating when power is supplied. If so, pump
impeller may be stuck.
• If power is present during a call for heat, but the pump still does
not circulate, replace the pump.
• Replace the Dynaforce® Controller, if necessary.
• Verify sensors are connected
• Verify wiring.
• Measure resistance of sensors, 10kΩ sensors.
• Replace sensor if necessary
• Check fan power wires
• Fan signal wires are interchanged
• Minimum fan speed must be greater than 1600 RPM
• Air Switch wire(s) is/are loose
• Air Switch is set too tight, reduce sensitivity by turning screw ¼
turn counter-clockwise.
• Blocked Flue Switch wire(s) is/are loose
• Blocked Flue Switch is set too tight, reduce sensitivity by turning
screw ¼ turn clockwise.
55
ANALYSIS
o F