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0 suspending the unit (cont'd) – Reznor RIHVL Unit Installation Manual User Manual

Page 8

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Be certain to check local codes for mounting requirements and permission to use flex-

ible gas connectors. Local codes may require rigid mounting. It is recommended that

either the piping or the mounting be flexible to prevent fatigue failure from vibration

and/or thermal expansion.
Heaters may be mounted with an angle of 5-30°. Do not angle heaters more than 30°.

Suspend the heater with the gas manifold located on the low end. (Exception: It is per-

missible to suspend single-burner Models RIHN30, RIHL50, and RIHN60 with the gas

valve on the high end; see

FIGURE 3B.)

1. Securely attach long chains to overhead building structure

with "S" hooks

(A)

.

2. Attach the other end of the long chains to the back of the

heater with "S" hooks

(B)

3. Attach one end of the 11" (279mm) length chains to the

front of the heater with S hooks

(C)

. Attach the other end

of the short chains to the long chains with "S" hooks

(D)

by

placing the "S" hooks

(D)

in a loop of the long chain.

4. Check degree of angle mounting. Adjust the mounting

angle by moving "S" hooks

(D)

of the short chains along

the length of the long chains..

5. Check to be sure unit is level. Crimp all "S" hooks closed

(A, B, C, and D)

.

FIGURE 4 - Chain Hanging Instructions - Using either the

chains and "S" hooks in Option UE1, chain and "S" hooks

in Option UE2, or field-provided chain and "S" hooks

5.0 Suspending

the Unit

(cont'd)

3/8” (10mm) all-thread

rods for rigid mount

200# (91kg) working

load chain for chain mount

1/4” (6.3mm)

diameter “S” Hooks

Mounting Angle

(5 to 30°)

Gas Manifold

(horizontal along the

low side of the heater)

Gas Valve

FIGURE 3A - Rigid or

Chain Suspension

applies to all Sizes -

Heater must be level.

D

B

C

A

SIDE VIEW

Mounting Angle

11” (279mm)

with “S” hooks

FIGURE 3B - Optional

Mounting - applies

only to Sizes 30, 50,

and 60

A Gas Manifold

B Gas Valve

C Mounting Angle (5-30°)

Sizes 30, 50, and 60 ONLY have the option

of mounting with the gas manifold (A) angled

upward. ONLY in this case, the gas valve (B)

MUST be toward the high side.

For proper operation, the heater must be level.
If permissible by local code, it is recommended that the heaters be suspended with

chain and “S” hook mounting. Chain with 200# (91kg) working load (1/0 Tenso) is rec-

ommended. “S” hooks must be a minimum 1/4" (6.3mm) diameter wire and must be

closed after installation.

P/N 131793R10, Page 8