Installation Guide

W415-1426 / 12.23.14
7
EN
2.3 GENERAL INFORMATION
GDS28 GS28
NG LP NG LP
Altitude (FT) 0-4,500 0-4500 0-4500 0-4500
Max. Input (BTU/HR) 30,000 26,000 30,000 26,000
Max. Output (BTU/HR) 25,500 22,360 24,600 21,600
Max. Steady State
Effi ciency (w/the fan on)
85% 86% 82% 83%
Max. A.F.U.E. 64% 65%
Min. Inlet Gas Supply
Pressure
4.5" (11mb) Water
Column
11" (27mb)
Water Column
4.5" (11mb) Water
Column
11" (27mb)
Water Column
Max. Inlet Gas Supply
Pressure
7" (17mb)
Water Column
13" (32mb) Water
Column
7" (17mb)
Water Column
13" (32mb) Water
Column
Manifold Pressure
(Under Flow Conditions)
3.5" (9mb)Water
Column
10" (25mb)
Water Column
3.5" (9mb)Water
Column
10" (25mb)
Water Column
When the appliance is installed at elevations above 4,500 ft (1372m), and in the absence of specifi c recommendations
from the local authority having jurisdiction, the certifi ed high altitude input rating shall be reduced at the rate of 4% for
each additional 1,000 ft (305m).
Change in fl ame appearance from "HI" to "LO" is more evident in natural gas than in propane.
Expansion / contraction noises during heating up and cooling down cycles are normal and to be expected.
This appliance may be installed in an aftermarket permanently located, manufactured mobile home, where not
prohibited by local codes.
This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible
for use with other gases, unless a certifi ed kit is used.
This appliance is approved for bedroom and bed-sitting room installations.
FOR YOUR SATISFACTION, THIS APPLIANCE HAS BEEN TEST-FIRED TO ASSURE ITS OPERATION
AND QUALITY!