Venmar 1200 cfm User Manual

For technical assistance and warranty information,

please call your local supplier.

Inside air is too dry

Over ventilation - speed setting

Adjust speed setting

too high
Dehumidistat setting is too low

Set dehumidistat control in a
higher position (if applicable)

Persistent condensation on

Improper adjustment of

Adjust dehumidistat control knob

windows, walls, ceilings, etc.

dehumidistat control

to a lower setting

Improper ventilation rate

Install a dehumidistat (option)

Window frame is too cold or leaky

Repair window frame

Unit stops functioning

Electrical supply interrupted

Check the unit circuit breaker

Air from supply diffusers too cold Imbalance of supply and exhaust air

Check filters and cores for blockage
Check balance of airflows

Outdoor temperature very cold

Install electric duct heater
if necessary

Unit makes annoying noise

Blower wheel out of alignment

Remove the motor/blower
assembly and adjust blower wheel

Heat exchange core freezing up

Imbalance of supply and exhaust air

Check filters and cores for blockage
Check balance of airflows

Defrost damper not functioning

Check for operation of both
defrost damper actuators