Carrier HRVCCLVU - Manual (Page 3)

3
CUT HAZARD
Failure to follow this caution may result in personal injury.
Although special care has been taken to minimize sharp edges
in the construction of your unit, be extremely careful when
handling parts or reaching into the unit. Wear appropriate
protective clothing and gloves when working on this unit.
CAUTION
!
PERFORMING ROUTINE MAINTENANCE
1. The motors are factory lubricated. Lubricating the bearings
is not recommended.
2. The heat recovery coremust be handled with care. To ensure
maximum efficiency of the plastic partitions wash core once
a year following the season of most intense use.
Allowthe heat recovery core to soak for 3 hours in a
solution ofwarmwater and mild soap. Rinse under a stream
ofwarm water. Hot water and strong detergent should NOT
be used,as it will damage the heat recovery core.
3. A dirty air filter will cause excessive strain on the blower
motor. The filters in your HRV are washable and should be
cleaned every 3months.Use a vacuumcleaner to remove the
heaviest portion of accumulated dust, then wash in warm
water.
The Air Exchange Indicator light on the auto control will
indicate when filters should be cleaned. The light will flash
on and off until the door is opened to service the unit.
4. Regularly check the screen on the exterior intake hood and
clean as necessary.
5. Examine the condensate drain pan to ensure drains are func-
tioning properly. Gently clean tray with mild soapy water.
(See Fig. 3 and 4).
BEFORE YOU REQUEST A SERVICE
CALL
S Check the main power disconnect switch. Verify that the circuit
breakers are ON or that fuses have not blown. If you must reset
breakers or replace fuses, do so only once. Contact your servicing
dealer for assistance if the breakers trip or the fuses blow a second
time.
S Check for sufficient airflow. Check air filters for accumulations of
large particles. Check for blocked exhaust--air grilles or ductwork.
Keep grilles and duct work open and unobstructed.
S If the condensate fails to drain properly, check the grommet and
drain tube for obstructions. Make sure that the condensate drain
tube has a slight slope and is not kinked.
If your HRV still fails to operate properly, contact your servicing deal-
er. Give him your model and serial number. With this information, the
dealer will be able to correct any problems.
Table 1 – Recommended Humidity Levels
OUTSIDE
TEMPERATURE
DOUBLE---PANE
WINDOWS
TRIPLE---PANE
WINDOWS
50°F / 10°C 55% 65%
32°F / 0°C 45% 55%
14°F / ---10°C 35% 45%
---4°F / ---20°C 30% 45%
---22°F / ---30°C 25% 35%
STALE AIR
FROM BUILDING
FRESH AIR
TO BUILDING
FRESH AIR
FROM OUTSIDE
STALE AIR
TO OUTSIDE
A92382
Fig. 3 -- Vertical Application
HR
V