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15

External

Regulator

Propane/LP

Supply Tank

Isolate 

Gas  

Valve

Equipment Shut Off Valve

Vent Pointing Down

CHECKING GAS CONNECTIONS

 

 

WARNING

: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks immediately. 

  WARNING

: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. If bubbles 

        form, there may be a leak. Correct all leaks immediately.

Pressure Testing Gas Supply Piping System

 

Test Pressures In Excess Of 1/2 PSIG ( 3.5kPa )

1. Disconnect heater with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping 

    system. Pressures in excess of 1/2 PSIG will damage heater regulator.

2. Cap off open end of gas pipe where equipment shutoff valve was connected.

3. Pressurize supply piping system by either using compressed air or opening gas supply tank valve. 

4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. If bubbles form, there may 

    be a leak.

5. Correct all leaks immediately.

6. Reconnect heater and equipment shutoff valve to gas supply. Check reconnected fittings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)

1. Close equipment shutoff valve (see Fig. 12).

2. Pressure supply piping system by either using compressed air or opening gas supply tank valve.

3. Check all joints from gas meter to equipment shutoff valve (see Fig. 13). Apply mixture of liquid soap and water to gas joints. 

    If bubbles form, there may be a leak.

4. Correct all leaks immediately.

Pressure Testing Heater Gas Connections

1. Open equipment shutoff valve (see Fig. 12).

2. Open gas supply tank valve. 

3. Make sure control knob of heater is in the OFF position.

4. Check all joints from equipment shutoff valve to control valve (Fig. 13). Apply mixture of liquid soap and water to gas joints. 

    If bubbles form, there may be a leak.

5. Light heater (see Operation, page 19). Check all other internal joints for leaks.

6. Turn off heater (see To "Turn Off Gas to Appliance," page 20).

Fig. 12 - Equipment Shut -off Valve

Fig. 13 - Checking Gas Joints

Equipment 

Shutoff Valve

Open

Closed

Fig. 14

Fig. 15 

Fig. 16 

Convert Natural Gas To Propane/Lp Gas Instructions

:

1. Remove the Access Door; see Figure 14.

2. Remove 5 screws as shown in Figure 15, unplug two wires from the valve, and then remove the manifold.

3. Replace LP gas orifices; see Figure 16

4. Follow the conversion kit instruction inside the package to replace the conversion kit;

5. Place the manifold back into the heater, and connect two wires back into the valve.

6. Install Access Door back to the heater.

7. Remove the conversion kit sticker from the package. Then place sticker over the natural gas certification label.

Содержание GHBVL50

Страница 1: ...tomer service department at 1 877 886 5989 8 00 a m 4 30p m EST Monday Friday or e mail customerservice usaprocom com WARNING IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY A FIRE OR EXPLOS...

Страница 2: ...acement Parts 19 WARNING Read the installation operation instructions before using this appliance IMPORTANT Read instructions and warnings carefully before starting installation Failure to follow thes...

Страница 3: ...rols can be dangerous WARNING Fire burn inhalation and explosion hazard Keep solid combustibles such as building materials paper or cardboard a safe distance away from the heater as recommended by the...

Страница 4: ...hese unit heaters are certified for installation to combustible material as listed in Table 1 Unit Clearances and on unit rating plate Accessibility and service clearances must be observed in addition...

Страница 5: ...ers directing airflow as desired 2 Choose location for mounting brackets 3 Remove and retain three screws along top edge bottom edge when inverted of front of unit 4 Align screw holes on mounting brac...

Страница 6: ...plicable as well as the modifications and imitations listed in figure 3 Seal single wall vent material according to section General Recommendations and Requirements 2 The vent connector shall be 4 102...

Страница 7: ...ing may be troublesome and may cause some staining Avoid windows where steam may cause fogging or ice buildup 5 When horizontally vented minimum clearance for termination from any door window gravity...

Страница 8: ...ll vent material according to the section General Recommendations and Requirements In areas where local authorities having jurisdiction permit a downward slope of maximum 1 4 6mm per foot 305mm is als...

Страница 9: ...rizontal Venting General and Horizontal Venting Residential 2 The vent pipe diameter for horizontal residential installations shall be 4 102mm on 45K Btu hr units and 75K Btu hr units A standard vent...

Страница 10: ...recognized standards lined or relined with suitable materials or replaced with a gas vent or chimney suitable for venting unit heaters The chimney passageway must be checked periodically to ensure tha...

Страница 11: ...11 Electrical Connections...

Страница 12: ...s a precise instrument Please handle it with care Turn off electricity to the appliance before installing or servicing thermostat or any part of the system Do not turn electricity back on until work i...

Страница 13: ...er must supply an external regulator for liquid propane The external regulator is provided by the gas supplier for natural gas The external regulator will reduce incoming gas pressure You must reduce...

Страница 14: ...ment trap in a supply line as shown in Fig 9 Locate sediment trap where it is within reach for cleaning and not likely to freeze Install in the piping system between fuel supply and heater A sediment...

Страница 15: ...Pressure supply piping system by either using compressed air or opening gas supply tank valve 3 Check all joints from gas meter to equipment shutoff valve see Fig 13 Apply mixture of liquid soap and...

Страница 16: ...will snap to OFF See Figure 17 6 Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you then smell gas STOP FOLLOW B in the saftey information above If you do not...

Страница 17: ...on control failure When thermostat is placed in continuous fan mode LED will slowly flash High Altitude Adjustments Units may be fired at full input up to 2000 feet 610m above sea level Above 2000 fee...

Страница 18: ...w of gas Gas Pressure Adjustment 1 Check gas line pressure with unit firing at maximum rate A minimum of 7 178mm w c for natural gas or 10 4 264mm w c for LP propane gas should be maintained for prope...

Страница 19: ...procedure is as follows 1 Turn off the manual gas valve 2 Set the thermostat to call for heat 3 System begins normal sequence of operation 4 After approximately 30 seconds pre purge period the LED wil...

Страница 20: ...15 PRESSURE SWITCH TUBE GHBV48306 GHBV48306 1 16 INDUCED DRAFT MOTOR GHBV48320 GHBV48320 1 17 VENT ADAPTER GHBV78321 GHBV78321 1 18 INDUCED DRAFT MOTOR GASKET GHBV48220 GHBV48220 1 19 BACK BRACKET GHB...

Страница 21: ...21 ILLUSTRATED PARTS GHBVN50 GHBVN80...

Страница 22: ...ginal factory replacement parts voids this warranty The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit WHAT IS NOT COVERE...

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