ECR International G95V Installation Manual And Operating Instructions page 37

TABLE 6 - HIGH ALTITUDE SPECIFICATIONS
(U.S.A.)
ALTITUDE
MODEL
(FT)
NATURAL
0-2000
2000-3000
3000-4000
4000-5000
All 5000-6000
6000-7000
7000-8000
8000-9000
9000-10000
† Gas input ratings are certified for elevations to 2000 ft. For
elevations above 2000 ft, reduce ratings 2% for each 1000 ft
above sea level.
In Canada, derate the unit 5% for elevations from 2000 to
4000 ft above sea level.
CONVERSION STEPS
To convert from sea level to high altitude, from
natural gas to LP gas, or from LP gas to natural
gas, follow these steps:
1. Turn off gas supply to the furnace.
2. Shut off electrical power to the furnace.
3. Remove the front door to expose the gas train
and burner assembly.
4. Unfasten the ground joint union between the
gas valve and gas supply piping if applicable.
5. Unplug the wires connected to the gas valve.
6. Unfasten the burner manifold pipe from the
burner assembly. It is held in place by 2 screws
on either end of the manifold pipe.
7. Remove the existing orifices with a
/ " socket, box or open end wrench. Install
7
16
the replacement orifices. The orifice spuds are
brass, and do not normally require pipe dope.
A light grease may be used to lubricate the
threads. The orifice spuds have tapered threads.
DO NOT OVER-TIGHTEN!!
ORIFICE SIZE (DMS)
LP GAS
45 55
48 56
49 57
50 58
51 60
52 61
53 62
54 63
55 65
TABLE 7 - HIGH ALTITUDE SPECIFICATIONS (CANADA)
ALTITUDE INPUT
MODEL
(FT) BTU/HR
0 - 2000 60000
60
2000 - 4500 54000
0 - 2000 80000
80
2000 - 4500 72000
0 - 2000 100000
100
2000 - 4500 90000
0 - 2000 120000
120
2000 - 4500 108000
† Gas input ratings are certified for elevations to 2000 ft. For elevations
above 2000 ft, reduce ratings 2% for each 1000 ft above sea level.
In Canada, derate the unit 5% for elevations from 2000 to 4000 ft
above sea level.
FIGURE 30 - WHITE-RODGERS 36G54 SPRINGS
AND REGULATORS SCREWS
8. Re-install the burner manifold pipe assembly
following steps 4, 5, and 6 in reverse order.
9. Remove both regulator cover screws. See
FIGURE 30.
10. Remove both regulator adjustment screws
(beneath the cover screws).
11. Remove both Natural Gas regulator springs
(colour-coded
sleeves.
12. Insert the L.P. regulator springs (provided in
the conversion kit and colour-coded white) into
the regulator sleeves.
37
ORIFICE SIZE (DMS)
OUTPUT
BTU/HR
NATURAL
57000 45
51300 46
76000 45
68400 46
95000 45
85500 46
114000 45
102600 46
silver/plain) from
QTY.
LP GAS
55
3
56
55
4
56
55
5
56
55
6
56
regulator