4
Heater Identification Information
To identify the heater, see rating plate on the inner front panel of the heater. There are two designators for each
heater, one is the Model Number and the other is the Heater Identification Number (HIN).
a. Heater Identification Number (HIN)
The following example simplifies the identification system:
1) MT : MasterTemp
2) Model Size : (175, 200, 250, 300 or 400) : Input rating (Btu/hr) X 1000
3) Fuel Type : (LP = Propane gas or NA = Natural gas)
4) Construction : (STD = Standard Model)
HEATER IDENTIFICATION INFORMATION — (HIN)
ID DESIGNATOR FOR PENTAIR WATER POOL & SPA MASTERTEMP HEATERS
Example:
1
2
MT
250
P/N 472592
(HD = Heavy Duty Model)
(ASME = ASME Certified Model)
H. I. N.
HEATER IDENTIFICATION NUMBER
3
4
NA
ASME
Section 1. Heater Identification Information
STD
HD
CONSTRUCTION =
ASME = ASME CERTIFIED MODEL
NA = NATURAL GAS
FUEL TYPE =
LP = PROPANE GAS
MODEL SIZE = BTU INPUT in 1000 of BTU / HR
MT = MASTERTEMP
= STANDARD MODEL
= HEAVY DUTY MODEL
Rev. C 10-5-07