Carrier HRVCCSVA - 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 core must be handled with care. To ensure
maximum efficiency of the plastic partitions wash core once
a year following the season of most intense use.
Allow the heat recovery core to soak for 3 hours in a solution
of warm water and mild soap. Rinse under a stream of warm
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 3 months. Use a vacuum cleaner 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
functioning 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
dealer. Give him your model and serial number. With this informa-
tion, the dealer will be able to correct any problems.
Table 1—Recommended Humidity Settings
OUTSIDE TEMPERATURE DOUBLE---PANE WINDOWS TRIPLE---PANE WINDOWS
50° F 10° C 55 percent 65 percent
32° F 0° C 45 percent 55 percent
14° F ---10° C 35 percent 45 percent
---4° F ---20° C 30 percent 45 percent
---22° F ---30° C 25 percent 35 percent
STALE AIR
FROM BUILDING
FRESH AIR
TO BUILDING
FRESH AIR
FROM OUTSIDE
STALE AIR
TO OUTSIDE
A92382
Fig. 3 -- Vertical Application