Daikin DCH072 SERIES User Manual

SCHEDULED MAINTENANCE
14
MAINTENANCE
HIGH VOLTAGE !
D ISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT . M ULTIPLE POWER SOURCES MAY
BE PRESENT . F AILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE , PERSONAL INJURY OR DEATH .
WARNING
T O PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER
INSTALLATION , ADJUSTMENT , ALTERATION , SERVICE OR MAINTENANCE ,
REFER TO THIS MANUAL . F OR ADDITIONAL ASSISTANCE OR
INFORMATION , CONSULT A QUALIFIED INSTALLER , SERVICE AGENCY OR
THE GAS SUPPLIER .
WARNING
S HEET METAL PARTS , SCREWS , CLIPS AND SIMILAR ITEMS INHERENTLY
HAVE SHARP EDGES , AND IT IS NECESSARY THAT THE INSTALLER AND
SERVICE PERSONNEL EXERCISE CAUTION .
CAUTION
Preventive maintenance is the best way to avoid unnecessary
expense and inconvenience. Have this system inspected at
regular intervals by qualified service personnel, at least twice
a year. Routine maintenance should cover the following
items:
1. Tighten all belts, set screws, and wire connections.
2. Clean evaporator and condenser coils mechanically or
with cold water, if necessary. Usually any fouling is only
matted on the entering air face of the coil and can be
removed by brushing.
3. Lubricate motor bearings.
4. Align or replace belts as needed.
5. Replace filters as needed (see below).
6. Check for blockage of condensate drain.
7. Check power and control voltages.
8. Check running amperage.
9. Check operating temperatures and pressures.
10. Check and adjust temperature and pressure controls.
11. Check and adjust damper linkages.
12. Check operation of all safety controls.
13. Examine gas furnaces (see below and the User’s Infor-
mation Manual).
14. Check condenser fans and tighten set screws.
FILTERS
T O PREVENT PROPERTY DAMAGE DUE TO FIRE AND LOSS OF EQUIPMENT
EFFICIENCY OR EQUIPMENT DAMAGE DUE TO DUST AND LINT BUILD UP
ON INTERNAL PARTS , NEVER OPERATE UNIT WITHOUT AN AIR FILTER
INSTALLED IN THE RETURN AIR SYSTEM .
CAUTION
Every application may require a different frequency of replace-
ment of dirty filters. Filters must be replaced at least every
three (3) months during operating seasons.
Dirty filters are the most common cause of inadequate
heating or cooling performance. Filter inspection should be
made at least every two months; more often if necessary
because of local conditions and usage.
Dirty throwaway filters should be discarded and replaced with
a new, clean filter.
Disposable return air filters are supplied with this unit. See the
unit Specification Sheet for the correct size and part number.
To remove the filters, remove the filter access panel on return
side of the unit.
CABINET F INISH M AINTENANCE
Use a fine grade automotive wax on the cabinet finish to
maintain the finish’s original high luster. This is especially
important in installations with extended periods of direct
sunlight.
CONDENSER AND INDUCED DRAFT MOTORS
Bearings on the condenser fan motors and the combustion
fan motor are permanently lubricated. No additional oiling is
required.
LUBRICATION
The fan shaft bearings and the supply fan motor have grease
fittings that should be lubricated during normal maintenance
checks.
CLEAN OUTSIDE COIL (QUALIFIED SERVICER ONLY)
The coil with the outside air flowing over it should be inspected
annually and cleaned as frequently as necessary to keep the
finned areas free of lint, hair and debris.
FUNCTIONAL P ARTS
Refer to the unit Parts Catalog for a list of functional parts.
Parts are available from your distributor.

Daikin DCH072 SERIES Specifications

General

Brand	Daikin
Model	DCH072 SERIES
Category	Heat Pump
Language	English