Installation Manual and Owner’s Guide WHO-321064-NG, WHO-321064-LP
ECOHOT
TM
9 of 27
needs to be derated 5% for Inside Models and 10% for Outside Models (See owner's manual for
instructions on de-rating)
For high altitude installations in US above 7,500 Ft, contact Greenworks Unlimited for instructions.
Do not alter the orifice jets or gas supply pressure.
This Water Heater is not approved above 9,000 ft (2,743m).
De-rating Manifold Pressure
De-rating Manifold Pressure Table
WH-201061, WHO-201059
WH-321063, WHO-321064
LPG
NG
LPG
NG
Normal Max.
Manifold Pressure
7.0 inches W.C.
(1750
±
30)Pa
3.1 inches W.C.
(780
±
30)Pa
8.0 inches W.C.
(2000
±
30)Pa
4.4 inches W.C.
(1100
±
30)Pa
Normal Min.
Manifold Pressure
1.4 inches W.C.
(350
±
20)Pa
0.6 inches W.C.
(150
±
20)Pa
1.4 inches W.C.
(350
±
20)Pa
0.6 inches W.C.
(150
±
20)Pa
De-rating 5% Max.
Manifold Pressure*
6.3 inches W.C.
(1580
±
30)Pa
2.8 inches W.C.
(705
±
30)Pa
7.2 inches W.C.
(1800
±
30)Pa
4.0 inches W.C.
(990
±
30)Pa
De-rating 5% Min.
Manifold Pressure*
1.3 inches W.C.
(315
±
20)Pa
0.5 inches W.C.
(135
±
20)Pa
1.3 inches W.C.
(315
±
20)Pa
0.5 inches W.C.
(135
±
20)Pa
De-rating
10%
Max.
Manifold Pressure*
5.7 inches W.C.
(1420
±
30)Pa
2.5 inches W.C.
(635
±
30)Pa
6.6 inches W.C.
(1650
±
30)Pa
3.6 inches W.C.
(895
±
30)Pa
De-rating 10% Min.
Manifold Pressure*
1.1 inches W.C.
(285
±
20)Pa
0.5 inches W.C.
(125
±
20)Pa
1.1 inches W.C.
(285
±
20)Pa
0.5 inches W.C.
(125
±
20)Pa
(1 inch water column equals 249.089 Pascals (at 4 degree Celsius), 1 Pa=0.004015 in.W.C.)
*: For High Altitude installation in Canada between 2,000 Ft and 4,500 Ft , Indoor Model de-rating
5% and outdoor model de-rating 10%,
**: Natural Gas Pressure Inlet: Max. 10.5” WC(2.6kPa), Min. 6” WC(1.5kPa).
***: LP Gas Pressure Inlet: Max. 14” WC(3.5kPa). Min. 10” WC(2.5kPa).
1. Connecting manometer
◆
Shut off gas.
◆
Remove front cover and locate Manifold Pressure measuring point, see Fig:Test Point
below “T”.
