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Preparation, Gas inlet & manifold pressures, Gas line installation – Vermont Casting RFS32 User Manual

Page 5: Gas specifications, For u.s.a installations

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GAS INLET & MANIFOLD PRESSURES

Input Minimum

Input Maximum

Manifold Pressure

NATURAL

LP (Propane)

11" wc

13" wc

10" wc

4.5" wc

7" wc

3.5" wc

1/2" GAS SUPPLY

1/2" X 3/8" REDUCER

3/8" NIPPLE

3/8" NIPPLE

3/8" NIPPLE

3/8" X 3/8" SHUT OFF VALVE

3/8" UNION

DO NOT USE THIS FIREPLACE IF ANY PART
OF THIS FIREPLACE HAS BEEN UNDER
WATER. IMMEDIATELY CALL A QUALIFIED
SERVICE TECHNICIAN TO INSPECT THE
HEATER AND TO REPLACE ANY PART
CONTROL WHICH HAS BEEN UNDER
WATER.

When using copper or flex connector use only approved
fittings. Always provide a union when using black iron
pipe
so that gas line can be easily disconnected for burner
or fan servicing. See Fig. 2. See gas specification for
pressure details and ratings.

The fireplace valve must not be subjected to any test
pressures exceeding 1/2 psi. Isolate or disconnect this or
any other gas appliance control from the gas line when
pressure testing.

Al

ways check for gas leaks with a mild soap and

water solution. Do not use an open flame for
leak testing.
The gas control is equipped with a captured
screw type pressure test point, therefore it is not
necessary to provide a 1/8" test point up stream
of the control.

FOR U.S.A Installations

consult the current National

Fuel Gas Code, ANSI Z223.1

GAS LINE INSTALLATION

When purging gas line, the front glass must
be removed.

The gas pipeline can be brought in through the rear of the
fireplace as well as the bottom. Knockouts are provided on
the bottom behind the valve to allow for the gas pipe
installation and testing of any gas connection. It is most
convenient to bring the gas line in from the rear right
side of the valve, as this allows fan installation or
removal without disconnecting the gas line.

The gas line connection can be made with
properly tinned 3/8" copper tubing, 3/8" rigid
pipe or an approved flex connector. Since
some municipalities have some additional
local codes, it is always best to consult your
local authority and the CAN/CGA- B149 (.1 or
.2) installation code.

PREPARATION

The use of wall paper adjacent to this fire-
place is not recommended, as the high heat
given off by this fireplace may adversely
effect the binders in the adhesive used to
apply the wallpaper.

Before beginning, remove the glass door from the fireplace
(See page 9). Also check to make sure there is no hidden
damage to the fireplace. Take a minute and plan out the
gas, vent and electrical supply.

Fig. 2

Typical gas supply installation

GAS SPECIFICATIONS

MAX.

MIN.

INPUT

INPUT

MODEL

FUEL

GAS CONTROL B.T.U.H

B.T.U.H.

RFS22RN

Natural Gas

Millivolt Hi/Lo

30,000

21,000

RFS22RP

Propane Gas

Millivolt Hi/Lo

30,000

22,500

RFS22TN

Natural Gas

Thermostatic

30,000

21,000

RFS22TP

Propane Gas

Thermostatic

30,000

22,500

RFS32RN

Natural Gas

Millivolt Hi/Lo

30,000

21,000

RFS32RP

Propane Gas

Millivolt Hi/Lo

30,000

22,500

RFS32TN

Natural Gas

Thermostatic

30,000

21,000

RFS32TP

Propane Gas

Thermostatic

30,000

22,500

RFS42RN

Natural Gas

Millivolt Hi/Lo

40,000

28,000

RFS42RP

Propane Gas

Millivolt Hi/Lo

37,000

27,750

RFS42TN

Natural Gas

Thermostatic

40,000

28,000

RFS42TP

Propane Gas

Thermostatic

37,000

27,750

The installation of your Majestic Fireplace
must conform with local codes, or in the
absence of local codes, with National Fuel
Gas Code, ANSI Z223.1 latest edition, or CAN
1 B1-149.1 and .2 Installation Code.
(EXCEPTION: Do not derate this appliance
for elevations up to 4,500 ft. (1,370mm).
Maintain the manifold pressure at 3.5 inches
W.C. for Natural Gas and 10 inches W.C. for
LP gas.)

ANSI.Z21.88a-1998 / CSA 2.33a - M98

Vented Gas Fireplace Heaters

RFS22 / RFS32 / RFS42

CERTIFIED TO

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