iFLOW HVAC INC.
www.iflowhvac.com
17
1) Maintenance:
At the beginning of each season, the air handler should be serviced
by a qualified installer or service technician.
• Filter: This filter should be inspected and replaced as required.
• Coils: the heating and air conditioning coils should not require
regular maintenance IF a regular filter maintenance schedule is
followed. In the event, the filter is damaged or plugged and dust
has fouled the coil, replace the filter and carefully vacuum the
heating and/or A/C coil.
• Circulator: The circulating pump is water lubricated and should
not require regular maintenance. The system control has a pump
exercise function during prolonged periods of no heat to avoid
seizing.
• Blower: The blower requires regular cleaning due to the build-up
of dust. In the event the filter is damaged, refer page 52 ~ 53 for
disassembly.
2) Checking Temperature Sensors:
1. Remove cables from the temperature sensor.
2. Check the sensor resistance and compare the actual values with
the curve on the chart.
3. Replacement of a sensor is required in the case of severe
deviation.
Water Temp. Sensor Chart
Resis
tance
Service and Maintenance
Evap. Temperature Sensor
Resis
tance
Resis
tance
Temperature
Outdoor Temp. Sensor Chart
