Hayward 150 - ALTITUDE OF INSTALLATION

USE ONLY GENUINE REPLACEMENT PARTS 13
51300004201B
GAS CONVERSION:
Where permitted by local codes, the factory-installed gas train may be changed from natural gas to propane or from propane to
natural gas, using the appropriate conversion kits. Gas conversions are to be performed only by a qualified service agency. Detailed
instructions are included with each kit.
ALTITUDE OF INSTALLATION:
Heaters may be installed at any altitude up to 10,100 ft. above sea level, provided the appropriate modification(s) are performed.
The altitudes which require modification vary depending on the model. Parts necessary to convert the heater for outdoor installation
at altitudes up to 7,700 ft. (minimum) are included with the heater.
WARNING: Failure to comply with the appliance and vent package installation instructions and service instructions in
this manual may result in equipment damage, fire, asphyxiation, or carbon monoxide poisoning. Exposure to products of
incomplete combustion (carbon monoxide) can cause cancer and birth defects or other reproductive harm.
Conversion is accomplished by replacement of the blower air inlet plate, and for indoor applications, installation of the appropriate
vent pressure switch. The blower air inlet plates are clearly marked with the compatible heater model(s), vent configuration(s), and
altitude range(s). Care should be taken to verify the correct plate and vent pressure switch is being used to ensure proper heater
performance. The vent pressure switch will be provided with the indoor adapter kit, or if you have an older indoor adapter kit, order
p/n FDXLVPS1931 for the high-altitude indoor vent pressure switch. Table4 lists the maximum altitudes for which each model is
designed with: a) no modifications, b) the included conversion plate installed, and c) the accessory conversion kit FDXLHAK1930
installed (sold separately).
Table4 High Altitude Conversions in (ft.)
Model
Outdoor Installation
Indoor Installation *
No
Modifications
to Heater
Included
Conversion
Plate Installed
Kit
FDXLHAK1930
Installed
No
Modifications
to Heater
Included
Conversion Plate
Installed
Kit
FDXLHAK1930
Installed
150FDN
7,700
N/A
10,100
10,100
N/A
N/A
150FDP
7,700
N/A
10,100
2,000
10,100
N/A
200FDN
10,100
N/A
N/A
10,100
N/A
N/A
200FDP
5,400
10,100
N/A
2,000
10,100
N/A
250FDN
5,400
10,100
N/A
2,000
10,100
N/A
250FDP
2,000
7,700
10,100
2,000
7,700
10,100
300FDN
10,1001
N/A
N/A
10,100
N/A
N/A
300FDP
2,000
10,100
N/A
2,000
10,100
N/A
350FDN
2,000
10,100
N/A
2,000
10,100
N/A
350FDP
2,000
7,700
10,100
2,000
7,700
10,100
400FDN
10,100
N/A
N/A
10,100
N/A
N/A
400FDP
2,000
7,700
10,100
2,000
7,700
10,100
500FDN
10,100
N/A
N/A
10,100
N/A
N/A
500FDP
5,400
7,700
10,100
5,400
7,700
10,100
* All indoor installations at altitudes above 2,000 require a vent pressure switch to be installed in addition to the blower inlet plate.
The vent pressure switch is included with the appropriate indoor vent kit (UHXNEGVT1xxx or UHXPOSHZ1xxxx), or the high-
altitude vent pressure switch kit FDXLVPS1931.