Marley Engineered Products PATTON GV 16 User Manual

Page 3

Excessive

Propeller blade contacting

Realign or replace.

noise.

housing.

Foreign material inside

Clean.

housing.

Motor loose.

Secure properly.

Motor needs oiling.

See Maintenance section.

Dirt accumulation on pro-

Clean.

peller, causing imbalance.

Insufficient

Not enough eave vents to

See installation section.

air flow.

provide make-up air.

Clogged screen.

2. Clean or replace.

Unit fails to

Blown fuse or open cir-

*1.

Replace fuse or reset cir-

operate.

cuit breaker.

Defective motor.

*2.

Replace.

Improper setting of ther-

*3.

See Operation section.

mostat. (REMEMBER THE
15

DIFFERENTIAL)

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

to 120

and operates on

a 15

differential. For example, factory setting is 100

. At this set-

ting, as soon as temperature reaches 115

, thermostat will close

and start ventilator. When temperature has been reduced to 100

thermostat will open and ventilator will stop. Dial pointer may be
set at temperature that is best for local conditions.
NOTE: Remember the 15

differential. If dial point is set on 120

ventilator will start at 135

and operate until temperature has been

reduced to 120

, a difference of 15

. (See Figure 8.)

Figure 8 — Thermostat

120V, 60 Hz

SUPPLY

WHITE

GROUND

BLACK

DEHUMIDISTAT

TO FAN

MOTOR

THERMOSTAT &
JUNCTION BOX
ASSEMBLY

A
N

F
F

120