Lifebreath CAF-02-MB Uživatelský manuál stáhnout pdf (Strana 33)

Lack of heat

1. Check that the room thermostat is set to the

desired temperature.

2. Confirm the units have power and the shut-off

valves are open.

3. Ensure there is power to the unit and that the

pump is working. If the pump is not working

properly it may be stuck. Disconnect power

and remove screw in center face of the pump.

Using a screwdriver, turn the pump shaft sev-

eral times to free it from sticking. Replace

center-screw and re-connect power. If pump

still fails to start, it may require replacement.

4. Confirm that the hot water heater is working

and that hot water is entering the Clean Air

Furnace.

5. Verify that the airflow in and out of the system

matches designed specs. If airflow is low,

check for blockage in the filter or some other

obstruction.

6. Make sure your water heater is sized large

enough for heat load of house and for domes-

tic hot water use.

7. Air may still be in the water lines. If so, re-

purge the system according to the start up

procedure.

8. Confirm that the inlet and outlet pipe connec-

tions are not reversed.

9. Ensure that there are no other restrictions in

the water lines, such as faulty valves, or

debris.

Pump is noisy

Pumps can become noisy when air remaining in

the lines interfere with their operation. If this

occurs re-purge the system as indicated in the

Start-Up Procedure.

HRV core freezes up

1. Make sure that the supply and exhaust lines are

balanced according to the "Balancing

Procedure" in this manual.

2. If out of balance, ensure that the balancing

dampers have not been moved and that there

are no obstructions in the outside hoods.

During cooling cycle, hot water circulates

through the coil

If the check valve inside the cabinet is stuck in the

open position, hot water may infiltrate the heating

coil. This occurs when the hot pipes are not

capped-off during installation or service and for-

eign debris enters the piping. This debris can set-

tle under the check valve seat and permit hot

water to flow into the coil. The problem can be cor-

rected by repeatedly flushing the heating loop

until it is clean.

Water sits in drain pipes

1. Check drain pans or lines for plugs.

2. Confirm that the HRV core is installed

according to manufactures recommendations.

3. Check the drain line for kinks.

4. Make sure that the O-ring in the drain

nozzles sit flat.

5. Ensure the drain line has enough "fall" to it.

Condensation/ice forming inside

ventilation ducts

A rip in the vapor barrier or poorly sealed joints

may cause condensation or ice to form on the

ducting. If this occurs, replace the entire line.

Troubleshooting

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Lifebreath CAF-02-MB Uživatelský manuál Strana 33

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