Marley Engineered Products PATTON GV 16 - Manual (Page 3)

Excessive 1. Propeller blade contacting 1. Realign or replace.
noise. housing.
2. Foreign material inside 2. Clean.
housing.
3. Motor loose. 3. Secure properly.
4. Motor needs oiling. 4. See Maintenance section.
5. Dirt accumulation on pro- 5. Clean.
peller, causing imbalance.
Insufficient 1. Not enough eave vents to 1. See installation section.
air flow. provide make-up air.
2. Clogged screen. 2. Clean or replace.
Unit fails to 1. Blown fuse or open cir- *1. Replace fuse or reset cir-
operate. cuit breaker. cuit breaker.
2. Defective motor. *2. Replace.
3. Improper setting of ther- *3. See Operation section.
mostat. (REMEMBER THE
15
º DIFFERENTIAL)
4. Defective thermostat. *4. Replace
SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION
MAINTENANCE
WARNING: MOTORS ARE THERMALLY PROTECTED
AND AUTOMATICALLY TEMPERATURE CON-
TROLLED AND MAY START WITHOUT WARNING.
THEREFORE, MAKE CERTAIN THAT POWER SOURCE
IS DISCONNECTED BEFORE ANY ATTEMPT TO SER-
VICE OR DISASSEMBLE ANY COMPONENTS! IF
POWER DISCONNECT IS OUT-OF-SIGHT, LOCK IT IN
THE OPEN POSITION AND TAG TO PREVENT APPLI-
CATION OF POWER.
Lubricate motor every 6 months using SAE 20 non-detergent oil.
Insert 2-3 drops of oil in the oiling hole on the back plate of the
motor.
4. See Fig. 7 for wiring dehumidistat to ventilator.
TROUBLESHOOTING CHART
WARNING: ITEMS MARKED WITH AN ASTERISK (*)
SHOULD BE PERFORMED ONLY BY EXPERIENCED AND
QUALIFIED PERSONNEL.
Figure 7 — Wiring Diagram for Dehumidistat
5. Replace cover to thermostat/junction box.
OPERATION
Set automatic thermostat to meet your requirements. The ther-
mostat has an adjustable range from 60
º to 120 º and operates on
a 15 º differential. For example, factory setting is 100 º . At this set-
ting, as soon as temperature reaches 115 º , thermostat will close
and start ventilator. When temperature has been reduced to 100 º ,
thermostat will open and ventilator will stop. Dial pointer may be
set at temperature that is best for local conditions.
NOTE: Remember the 15
º differential. If dial point is set on 120 º ,
ventilator will start at 135 º and operate until temperature has been
reduced to 120 º , a difference of 15 º . (See Figure 8.)
Figure 8 — Thermostat
120V, 60 Hz
SUPPLY
WHITE
GROUND
BLACK
DEHUMIDISTAT
TO FAN
MOTOR
THERMOSTAT &
JUNCTION BOX
ASSEMBLY
F
A
N
O
F
F
90
60 º F
120