Reznor PDH Operation Manual PreevA - Manual (Page 21)

Form O-PreevA, P/N 234661R8, Page 21
3) Remove
Cover Plate
2) Remove
grommet.
1) Disconnect
the drain.
4) Slide out
the drain pan.
3.7.3 Optional Ultra-
Violet Light
FIGURE 8 -
Slide Out
Drain Pan
NOTE: Indoor
unit is illustrated.
Outdoor unit is
the same except
drain is in the
bottom panel
not the base.
3.7.4 Optional Reheat Module
Reheat Module Coils - Follow the instructions in Paragraph 3.7.1 to clean the reheat module coils.
Reheat Module Compressor Maintenance and Replacement
Compressor Handling Do not lift compressor by copper tubing. To prevent internal damage, compressors
must ALWAYS be held upright.
DANGERS
The reheat circuit is a high pressure system. Hazards exist that could result in
personal injury or death. It is therefore required that the removal and installation of
this scroll compressor be performed by a technician qualified in R410A refrigerant.
See Hazard Levels, page 2.
Never use oxygen to pressurize a refrigeration system. Oxygen can explode on
contact with oil and could result in personal injury or death. When using high
pressure gas such as nitrogen for this purpose, ALWAYS USE A PRESSURE
REGULATOR that can control the pressure down to 1 or 2 psig. Failure to use
a regulator will result in extremely high pressure which could exceed the burst
pressure of the compressor or other system components and result in personal
injury or death. See Hazard Levels, page 2.
WARNING
For your safety, wear eye protection, gloves, and protective clothing when handling
refrigerant and oil and when brazing. Have a fire extinguisher nearby. See Hazard
Levels, page 2.
The ultra-violet light is located in the blower compartment. It has its own power supply.
Disconnect all power before performing maintenance or service.
Replace the bulb(s) periodically to maintain design specifications Replace the bulb(s)
after 6000 hours of operation or one year, whichever comes first. For best perfor-
mance, replace the bulb(s) at the beginning of each cooling season.
The bulb(s) should be light blue when lit. If the bulb color changes to red or flickers,
replace the bulb. Output can be checked with a UVC radiometer. Replace bulb when
output falls to 70% of initial reading.
Use factory-authorized replacement bulb only. Other bulbs may plug into the fixture
but could cause overheating and should not be used.
algae formation in the drain
pan and traps. The drain
pan and traps must be
cleaned regularly to avoid
blockage that can slow or
stop water flow, resulting in
backup into the cabinet.
WARNING
DO NOT use ultra-
violet light for
service lighting.
Never expose eyes
or skin to ultra-
violet light.