Service Manual

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Item Description Item Description Item Description
1 T&P Relief Valve 21 Cleanout Gasket 41 Terminal Block “A”
2 Nipple Plastisert 22 Brass Drain Valve 42 Terminal Block End “A”
3 Hot Water Outlet Nipple 23 Finish Flange 43 Terminal Block 2 Pole
4 Magnesium Anode 24 Extender 44 Terminal Block 3 Pole
5 Nipple Galvanized 25 Alarm Horn Relay (optional) 45 Screw
6 Pipe Tee Galvanized 26 Alarm Horn (optional) 46 Fuse Block 2 Pole Class G
7 Combination T&P Gage (optional) 27 Heating Element Gasket 47 Fuse Block 3 Pole Class G
8 High Pressure Switch (optional) 28 Heating Element 48 Fuse Block 2 Pole Class T
9 Low Pressure Switch (optional) 29 Heating Element Plug 49 Fuse Block 3 Pole Class T
10 Screw 30 Low Water Switch (optional) 50 Terminal Strip
11 Immersion Thermostat 31 Low Water Switch (optional) 51 Terminal Strip 2 post
12 Thermostat Dial 32 Electrical Door Lock (optional) 52 Fuse Class G
13 Hex Nut 33 Control Box Door 53 Fuse Class T
14 Lock Washer 34 Control Box 54 Ground Lug Large
15 Screw 35 Knockout Plate 55 Ground Lug Small
16 High Limit Spacer 36 Louver Plate 56 Screw
17 High Limit Switch 37 Contactor 2 Pole 57 Control Circuit Transformer
18 Cleanout Access Cover 38 Contactor 3 Pole 58 Control Circuit Transformer (600 Volt)
19 Cleanout Cover Screw 39 Contactor 4 Pole 59 Time Delay Sequencer
20 Cleanout Cover 40 Screw 60 Fuse Class CC
Glossary of Terms
Term Definition Unit of measure
Voltage Electrical potential Volts
Current Rate of voltage flow Amperes (amp)
Resistance Ability of a device to dissipate power irreversibly Ohms
Energy Ability to do work kW/hr, Joule
Power Energy per unit of time Watts, kW, VA
One kilowatt (1kW) = 1,000 Watts = 3,412 BTU BTUH = British thermal units per hour
DC = Direct Current PSI = Pounds per square inch
AC = Alternating Current GPM = Gallons per minute
Hz = Hertz GPH = Gallons per hour
ECO = Energy cut off
°F = Degrees Fahrenheit NPT = National pipe thread
°C = Degree Centigrade ASME = American Society of Mechanical Engineers
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