Enviro Focus Owner's Manual download pdf (Page 19)

Initial Installation

QUALIFIED INSTALLERS ONLY

GAS LINE CONNECTION:

Warning: Only persons licensed to work with gas piping may make the necessary gas connections to

this appliance.

Gas Line Connection:

•This replace is equipped with a certied exible pipe located on the right side of the unit, terminating

in a ” male NPT tting. Consult the local authorities for local codes or use the CAN/CGA B149 (1 or 2)

installation code in Canada. In the US, gas installations follow either local codes or the current edition of

the National Fuel Gas Code ANSI Z223.1.

•The efciency of this unit is a product thermal efciency rating determined under continuous operating

conditions and was determined independently of any installed system.

The appliance and its’ shut-off valves must

be disconnected from the gas supply piping

system during any pressure testing where

the pressure exceeds  psig (3.45 KPa) or

the valve will be damaged.

The unit must be isolated from the gas

supply piping system by closing its’

individual manual shut off valve during any

pressure testing of the gas supply piping

system at pressures equal to or less than

 psig (3.45 KPa).

Always check for gas leaks with a soap

and water solution after completing

the required pressure test.

TP TH TP TH

IN OUT



 



 





 



 



TO TEST VALVE PRESSURES:

The pressure taps are located on the top right of

the valve.

• Turn set screw 1 turn counterclockwise to

loosen.

• Place 5/16 in (8 mm) I.D. hose over the

pressure taps.

• Check pressures using a manometer.

• When nished, release pressure, remove hose

and tighten set screw.

NEVER USE AN OPEN FLAME FOR LEAK TESTING.

Figure 26: Fully Labeled Gas Valve.

Table 4: Pressure and BTU Information.

Main Burner Natural Gas

(in W.C./KPa)

Propane Gas

(in W.C./KPa)

Orice: #38 DMS #52 DMS

Manifold Press: 3.8 / 0.95 11.0 / 2.74

Min. Manifold Press: 1.1 / 0.27 2.7 / 0.67

Max. Supply Press: 7.0 / 1.74 13.0 / 3.28

Min. Supply Press: 5.0 / 1.24 12.0 / 2.98

Max. BTU Input: 30,000/ 8.8 KW∙h 28,500/ 8.2 KW∙h

Min. BTU Input: 15,000/ 4.4 KW∙h 14,000/ 4.1 KW∙h

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Enviro Focus Owner's Manual Page 19

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