COMBAT® UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL

WARNING

Fire Hazard

Some objects will catch fire or explode when placed close to heater.

Keep all flammable objects, liquids and vapors the required clearances to combustibles away from heater.

Failure to follow these instructions can result in death, injury or property damage.

Figure 1: Installation Clearances and Clearances to Combustibles

Installation Clearances

Roof Terminal

(Optional separated

combustion concentric

Clearances to Combustibles

venting shown.)

 

 

Top

Wall

24" for

10'

(3 m)

adequate

Terminal

air flow access

 

 

axial fan.

 

20' (6.0 m) - 30' (9.1 m) Max. Mounting Height*

6"** (15 cm)

6"

(15 cm)

31" (79 cm)

3"

*Recommended mounting height varies with heater input. Heaters may be mounted at a higher level if destratification fans are installed.

Note: Venting directly from top of heater not applicable on Models 150 - 400.

Clearance to Vent: 2" (5 cm)

**31" (79 cm) minimum is necessary for servicing.

The heater must always be installed at least 6' (2 m) above the floor. The vent pipe must have clearance from combustibles by 2" (5 cm).

If installed at low levels where individuals can come in contact with hot heat exchanger components, adequate guarding must be provided.

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Roberts Gorden 400, 200, 350, 150, 300, 175, 225 250 service manual Installation Clearances and Clearances to Combustibles

225 250, 175, 300, 400, 150 specifications

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