Reznor R6GP Unit Installation Manual Manual de usuario descargar pdf (Pagina 12)

• Ifinstallingthisunitabove2,000feet,theinputratemust

bereduced4%per1,000feetofaltitude(Example:12%

at 3,000 feet, 16% at 4,000 feet, etc). Always round up

to the next highest value of 1,000. So an installation

at 3,120 feet is derated by 16% due to rounding up to

4,000. NOTE: This deration is necessary to compensate

for low atmospheric pressure at high altitudes. Generally

this will require obtaining the gas heating value from the

local gas utility and replacing the burner oriﬁces.

• Table15(page40)liststhecorrectoricesizetouse

at different altitudes. To determine the unit rating and

oriﬁce size, see the installation example.

• Afterchangingtheorices,itisrequiredthatyoumeasure

the gas input rate by clocking the gas meter and using

the local gas heating value. See section on Verifying

and Adjusting the Firing Rate on page 16.

 IMPORTANT NOTE: Observe the action of the

burnerstomakesurethereisnoyellowing,lifting

orashbackoftheame.

Conversion to LP/Propane

WARNING:

The furnace was shipped from the factory

equippedtooperateonnaturalgas.Conversion

to LP/propane gas must be performed by

qualied service personnel using a factory

supplied conversion kit. Failure to use the

properconversionkitcancausere,explosion,

propertydamage,carbonmonoxidepoisoning,

personalinjury,ordeath.

INSTALLATION EXAMPLE:

Elevation: ..................................................3,890 feet

TypeofGas: .................................................. Natural

Unit Model: ................................... R6GP-090C200C

At 4,000 feet, the unit needs to be derated by 4% for

each 1,000 feet of elevation. This equates to 16% or

less than the sea level rating of 200,000 Btu/h.

1. Determineunitinputrating:

[200k x (100-16)%] = 168,000 Btuh. The required

heating rate for 3,890 feet is 168,000 Btu/h.

2. Determineoricesize:

 FromTable15(page40),ndtheUnitModelNumber.

Follow across the row and stop at the 2,000-4,000

elevation column. For this example, the oriﬁce size

displayed is #38. Install one #38 oriﬁce in every burner

and check ﬁring rate. In this example, the ﬁring rate

must not exceed 168,000 Btu/h.

Figure9.TypicalGasServiceConnection

1. All piping must comply with local codes, ordinances, and/or National Fuel Gas Codes.

2. A manual shutoff valve must be installed within 6 feet of this equipment.

3. Always include a drip leg in piping.

NOTES:

Gas Valve

Riser

3 in.

Minimum

Horizontal

Drop

Piped Gas Supply

Tubing Gas Supply

3 in.

Minimum

Horizontal

Drop

Gas Valve

3 in.

Min.

Riser

Piped Gas Supply

In the U.S., if installing the unit above 2,000 ft., refer

to Table 15 to determine the correct oriﬁce size. When

conversion is complete, verify the input rate is correct as

listed in the tables. Approved conversion kit must be used.

Pleasefollowtheinstructionsprovidedwitheachkit.

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 47 48

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Reznor R6GP Unit Installation Manual Manual de usuario Pagina 12

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