Desa Tech CGN20TA installation manual Thermostat Sensing Bulb, Installing Heater to Wall

Page 8

CGN20TA

Blue Flame Vent-Free Natural Gas Heater

INSTALLATION

Continued

THERMOSTAT SENSING BULB

The thermostat sensing bulb has been placed inside the heater for protection during ship- ping.

INSTALLING HEATER TO WALL

Mounting Bracket

The mounting bracket is located on back panel of heater. It has been taped there for shipping. Remove mounting bracket from back panel.

Methods For Attaching Mounting Bracket To Wall

Only use last hole on each end of mounting bracket to attach bracket to wall. These two holes are 16 inches apart from their centers. Attach mounting bracket to wall in one of two ways.

1.

Attaching to wall stud

2.

Attaching to wall anchor

Locating Thermostat Sensing Bulb

1.Remove front panel of heater (see Fig- ure 7, page 8).

2.Locate thermostat sensing bulb just under burner assembly.

IMPORTANT: Attach thermostat sensing bulb to back of heater for proper operation.

Attaching Thermostat Sensing Bulb

1.Remove thermostat sensing bulb from holders inside heater. Route through slot opening in bottom of heater.

2.Place clamp on thermostat sensing bulb as shown in Figure 5. Clamp is pro- vided in hardware package.

3.Snap clamp into upper mounting hole as shown in Figure 5. Mounting hole is located on lower left edge on back of heater. Make sure the thermostat sens- ing bulb is pointing up.

Thermostat

Sensing Bulb

Clamp

Figure 5 - Attaching Thermostat Sensing Bulb

Mounting

Bracket

Figure 6 - Bracket Location

Removing Front Panel Of Heater

1.Remove two screws near bottom cor- ners of front panel.

2.Lift straight up on grill guard until it stops. Grill guard will slide up about 1/4".

3.Pull bottom of front panel forward, then downward.

4.Remove cardboard packing from grill and glass.

Figure 7 - Removing Front Panel Of Heater

Attaching to wall stud

This method provides the strongest hold. Insert mounting screws through mounting bracket and into wall studs.

Attaching to wall anchor

This method allows you to attach mounting bracket to hollow walls (wall areas between studs) or to solid walls (concrete or ma- sonry).

Decide which method better suits your needs. Either method will provide a secure hold for the mounting bracket.

Marking Screw Locations

1.Tape mounting bracket to wall where heater will be located. Make sure mounting bracket is level.

WARNING: Maintain minimum clearances shown in Figure 8. If you can, provide greater clear- ances from floor and joining wall.

2.Mark screw locations on wall (see Fig- ure 8).

Note: Only mark last hole on each end of mounting bracket. Insert mounting screws through these holes only.

3.Remove tape and mounting bracket from wall.

 

7 1/4"

16"

 

 

Min.

 

 

AdjoiningWall

Only Insert Mounting

18 3/4"

Screws Through Last

Min.

 

 

 

Hole On Each End

 

 

 

Floor

Figure 8 - Mounting Bracket Clearances

8

104190

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Contents Blue Flame VENT-FREE Natural GAS Heater What to do if YOU Smell GASSafety Information CGN20TAProduct Features Product IdentificationLocal Codes UnpackingFresh AIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location Determining if You Have a Confined or Unconfined SpaceVentilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Installation ItemsCheck GAS Type Locating HeaterInstalling Heater to Wall Thermostat Sensing BulbPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsAttaching Mounting Bracket To Wall Connecting to GAS Supply Typical Inlet Pipe DiametersPressure Testing GAS Supply Piping System Pressure Testing Heater GAS ConnectionsChecking GAS Connections Test Pressures In Excess Of 1/2For Your Safety Read Before Lighting Operating HeaterLighting Instructions To Turn OFF GAS To ApplianceManual Lighting Procedure Inspecting BurnerThermostat Control Operation Pilot Flame PatternTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Gas leak. See Warning statement at Cleaning and Maintenance Specifications Service Publications Replacement PartsTechnical Service Service HintsParts Centrals FBDManual Shutoff AccessoriesFAN Kits GA3100A and GA3200TA Illustrated Parts Breakdown CGN20TAParts List KEY Part Number Description QTYCGN20TA 104190 Warranty Information