Reznor YDHA - Maintenance Schedule

Form O-Y P/N 273647R5, Page 3
IMPORTANT: Do not release refrigerant to the atmosphere! If
required service procedures include the adding or removing
of refrigerant, the service technician must comply with all
federal, state and local laws. The procedures discussed in
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technician familiar with R-410A refrigerant.
WARNING
Lock power OFF before performing any maintenance
procedure (except where power is required such as
checking refrigerant pressure and temperature). Lock
disconnect switch in OFF position. If the system has a gas
heat section, when you turn off the power supply, turn off
the gas. See Hazard Levels on page 2.
2.1 Maintenance
Schedule
Monthly
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Paragraph 3.5, page 10.
Annually
All Models - Beginning of the cooling season or more frequently
in year-round cooling climate:
Ƒ Inspect the wiring for any damaged wire. Replace damaged wiring.
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Ƒ Inspect/clean condenser fans. See Paragraph 3.4, page 10.
Ƒ Inspect/clean all coils. See Paragraph 3.5, page 10.
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These checks are done when the unit is operating. See Paragraph 3.6, page 17.
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Systems with the Optional energy recovery wheel: See Paragraph 4.0, page 27.
Ƒ Inspect the wheel and clean as needed.
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Systems with the Optional gas heat section (beginning of the heating
season) - See Paragraph 5.0, page 32:
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assembly.
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Systems with the Optional electric heat section (beginning of the
heating season) - See Paragraph 6.0, page 42:
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needed.
If replacement parts are required, use only factory-authorized parts. For
information, contact your local distributor.