Installation Manual

40 Canadian Air Handler Installation and Operation
Menu Parameter Description Min Max Default
Configuration Language Switch between English and French - - English
Cooling/HP
AC/HP Tons Set the cooling/heat pump capacity (Tons) 0 10 0
CFM/TON Airflow adjustment per ton of cooling (CFM) 300 500 400
Dehum ON State Set the active state of the DH signal LOW HIGH HIGH
Dehum Ratio
(1)
Dehumidification cooling fan ratio 50% 100% 85%
AC Y1 Ratio
(1)
Fan ratio for 1st cooling stage 50% 90% 70%
Fan
Cont Fan Ratio
(1)
Continuous Fan Ratio 15% 100% 50%
Heat Fan Ratio
(1)
Fan ratio in heating mode (W/W2) 35% 100% 75%
Fan W1 Ratio
(2)
Fan ratio for 1st heating stage 45% 100% 50%
Heat Off Ratio
(1)
Fan ratio during off delay 0% 100% 40%
Pump
Recirculation Time between recirculation (hours) OFF 48 24
W1 Ratio Pump ratio for 1st heating stage 1% 100% 13%
Purge Cycle
Time during the pump will operate after a call
for heating
1 sec
240
sec
1 sec
Purge Ratio
(5)
Pump activation frequency during purge cycle 1% 100% 6%
Delays
AC/HP On Fan delay when heat pump starts 5 120 5
AC/HP Off Fan delay when heat pump stops 5 240 90
Heat On Fan delay when engine starts 5 120 5
Heat Off Fan delay when boiler stops 0 240 120
(1)
Ratio in percentage of max airflow (Y2)
(2)
Ratio in percentage of max airflow of 1600 CFM
(3)
Ratio in percentage of max hydronic heating airflow (W/W2)
(4)
Ratio in percentage of heating airflow (W1 or W2)
(5)
Reduce the value if the water heater activates during the purge cycle
TROUBLESHOOTING:
Insufficient or no heat:
• Check filter, replace if dirty
• Verify the hydronic coil is not clogged.
• Verify there no air trapped in the heating loop. Purge the loop if air is present.
• Verify Rinnai Engine operation and water temperature. Clean inlet water filter on Rinnai engine.
• Verify there are no restrictions in the heating loop. Verify all valves are fully open and functional.
The pump does not run:
• Verify 120V power is present to the pump
• Hard water may cause the pump to seize. Recirculation mode will prevent pump seizing.
The pump is noisy at start-up:
• Purge the hot water loop of air.
Heating during the fan on mode:
• Verify the check valve in the heating circuit is present and is not stuck.