4. See Fig. 7 for wiring dehumidistat to ventilator.
|
| 120V, 60 Hz | |
| WHITE | SUPPLY | |
TO FAN |
| ||
GROUND | |||
MOTOR | |||
|
| ||
| BLACK |
| |
THERMOSTAT & |
|
| |
JUNCTION BOX |
|
| |
ASSEMBLY |
|
| |
| DEHUMIDISTAT | ||
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 60º to 120º and operates on a 15º differential. For example, factory setting is 100º. At this set- ting, as soon as temperature reaches 115º, thermostat will close and start ventilator. When temperature has been reduced to 100º, thermostat will open and ventilator will stop. Dial pointer may be set at temperature that is best for local conditions.
NOTE: Remember the 15º differential. If dial point is set on 120º, ventilator will start at 135º and operate until temperature has been reduced to 120º, a difference of 15º. (See Figure 8.)
60ºF | F |
| A |
| N |
Figure 8 — Thermostat | 90 |
|
O
F
120 F
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
Lubricate motor every 6 months using SAE 20
TROUBLESHOOTING CHART
WARNING: ITEMS MARKED WITH AN ASTERISK (*) SHOULD BE PERFORMED ONLY BY EXPERIENCED AND QUALIFIED PERSONNEL.
SYMPTOM |
| POSSIBLE CAUSE | CORRECTIVE ACTION | |
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 |
|
|
| 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 |
|
|
|
| 15º DIFFERENTIAL) |
|
|
| 4. | Defective thermostat. | *4. | Replace |
|
|
|
|
|
