Service Manual

24
24
Parts List
Glossary of Terms
Term Definition Unit of Measure
Volta
g
e- Electrical Potential Volts
Current- Rate of volta
g
e flow Amperes
(
amp
)
Resistance- Abilit
y
of a device to dissipate power irreversibl
y
Ohms
Ener
gy
- Abilit
y
to do work kW/hr, Joule
Power- Ener
gy
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=Alternatin
g
Current GPM = Gallons per minute
Hz = Hertz GPH = Gallons per hour
°F = De
g
rees Fahrenheit NPT = Nation pipe thread
°C = Degrees Centigrade ASME = American Society of Mechanical
En
g
ineers
1 Lar
g
e Control Box 17 ¾” NPT Ni
pp
le
2 Small Control Box 18 Tem
p
erature and Pressure Relief Valve
3 Tem
p
erature Switch 19 Cleanout Rin
g
4 Thermostat Dial 20 Cleanout Cover
5 Element Insulation 21 Cleanout Screw
6 Heatin
g
Element 22 Jacket Cleanout Cover
7 Element Gasket 23 Drain Valve
8 Inlet Di
p
tube 24 Contactor
9 Element Plu
g
25 Terminal Block
10 ¾” NPT Plu
g
26 600V Fuse Block
(
3 Pole
)
11 Hi Limit Switch 27 Fuse Block
(
3 Pole
)
12 Lar
g
e Control Panel 28 Fuse Block
(
1 Pole
)
13 Small Control Panel 29 Fuse “C” Class
14 Outlet Ni
pp
le 30 Fuse “J” Class
15 Anode Hole Plu
g
31 Ground Lu
g
16 Anode 32 Transformer