CeilAir DX Series Betreibershandbuch PDF herunterladen (Seite 49)

(Mar, 2012)

CeilAiR OHS Series Installation, Operation & Maintenance Manual

ir Technology Systems, Inc.

4-5

SYMPTOM PROBABLE CAUSE RECOMMENDATION

Compressor Short Cycles a. Low line voltage causing Check power source for cause oﬂ ow

compressor to overheat. line voltage.

b. Dirty or iced over evaporator coil. Defrost and/or clean coil.

c. Reduced airﬂ ow. (when applicable). Check ﬁ lter and belt tension.

d. Lack of refrigerant. Check for leak. Repair and

recharge system.

e. Short cycling of conditioned air. 1. Supply and/or return grilles are

incorrectly oriented. Re-orient.

2. Supply and return grilles are too

close together. Move further apart.

3. Insufﬁ cient heat load. Add

temporary heat load to compensate.

f. Thermostat is improperly located. Check for supply registers that may

be too close to thermostat. Relocate

if necessary.

Heater Inoperative a. Fuses blown. Check for short circuit, replace fuse.

b. Thermostat set too low. Increase temperature setpoint.

c. Overheat switch open. Insufﬁ cient airﬂ ow across heater

elements. Check for dirty ﬁ lters or

obstructions that may reduce air

ﬂ ow. Correct or replace as needed.

d. Fuse link blown. Replace fuse link (See item

immediately above).

e. Heater element burned out. Check continuity with an ohmmeter.

Replace heater element.

Humidiﬁ er Inoperative a. Water supply has been turned off Connect and/or turn on water supply.

Note: See Humidiﬁ er Manual or not connected.

For Additional Help.

b. Electrical connections are loose. Tighten electrical connections.

c. Humidiﬁ er fuses are blown. Check for over current by the

humidiﬁ er electrodes. Drain water

from tank and reﬁ ll. Replace fuses.

d. Relative humidity is above set point. Adjust humidistat setpoint.

e. Electrode canister change cylinder 1. Consult humidiﬁ er manual.

light is on.

2. Water conductivity is too low and

water is at the top of the cylinder (see

next item).

f. Water conductivity is too low. Add a teaspoon of table salt to the

water through the top of the cylinder.

Typically only required on initial start-

up.

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