Reznor MAPS III, Cabinet D RECB Users Manual - Manual (Page 3)

Form O-MAPSIII Cabinet D, P/N 222918R9, Page 3
2.0 Maintenance
Requirements
This unit will operate with a minimum of maintenance. To ensure long life and satis-
factory performance, a system that is operating under normal conditions should be
inspected according to the Maintenance Schedule. If in an area where an unusual
amount of dust or soot or other impurities are present in the air, more frequent inspec-
tion is recommended.
Refer to the illustration in
FIGURE 1, page 4, and follow the instructions in the refer-
enced paragraphs to maintain this equipment. Maintenance requirements and proce-
dures apply to all Models unless noted.
WARNING
Lock power OFF before performing all maintenance procedures (except where power is
required such as checking refrigerant pressure and temperature). Lock disconnect switch
in OFF position. If the system has a heat section, when you turn off the power supply, turn
off the gas. See Hazard Levels, page 2.
NOTE: If replacement parts are required, use only factory-authorized parts.
For information, go to www.ReznorHVAC.com or call 800-695-1901
Monthly
□ Inspect filters; clean or replace as needed. See Paragraph 3.1.
□ Inspect the condensate drain; clean as needed. For information, see Form
I-MAPSIII&IV, Paragraph 6.2.
Semi-Annually
□ Inspect the unit blower plenum fan and belt. Check belt for tension, wear, and
alignment. Adjust or replace as needed. Clean dirt from blower and motor. See
Paragraph 3.2.
Annually
NOTE: Redo the cooling startup procedures when the cooling season begins. Refer
to Startup instructions in the installation manual, Form I-MAPSIII&IV, Paragraph 10.0.
Beginning of the cooling season or more frequently in year-round
cooling climate (applies to all Models):
□ Inspect the wiring for any damaged wire. Replace damaged wiring.
□ Inspect the condensate drain pan. Clean the coil cabinet, the drain pan, and fill the
trap.
□ Inspect/clean condenser fans. See Paragraph 3.3.
□ Inspect/clean all coils. See Paragraph 3.4.
□ Check compressor operation. See Paragraph 3.6.
□ Check refrigerant pressure and temperatures (superheat and subcool). These
checks are done when the system is operating. See Paragraph 3.5.
Models RDCB & RDDB with a gas heat section (beginning of the heating
season) - See Section 4.0.
□ Clean all dirt and grease from the combustion air openings and the venter
assembly.
□ Check the heat exchanger, burner, and venter for scale, dust, or lint accumulation.
Clean as needed.
□ Check the gas valves to ensure that gas flow is being shutoff completely.
Models RECB & REDB with an electric heat section (beginning of the
heating season) - See Section 5.0.
□ Check the wiring connections.
□ Check the heat section and electric elements for dust or lint accumulation.
Carefully clean as needed.
2.1 Maintenance
Schedule