Repair
Repair Repair
Repair
Primary Primary
Primary
Heater Heater
Heater
Replace Replace
Replace
Heater Heater
Heater
Element Element
Element
1.Presstostopthepumps.
2.Turnoffheatzones.
3.Flushpump.
4.Press
toparkthepumpsinthedownposition.
Theparkoperationiscompletewhengreendot
goesout.Verifytheparkoperationiscomplete
beforemovingtonextstep.
5.Presstodeactivatethesystem.
6.Turnmainpowerswitchoff.
7.Relievepressure.See
PressureReliefProcedure,page45.
8.Waitforheatertocool.
9.Removefourbolts(23)andshroud(10).
10.Removescrew(20)andlowerdinrailcover(48).
11.Disconnectheaterwires:
a.ASide:DisconnectAsideheaterwires,
transformer,andtransformerfanwiresfrom
lowerdinrail(33).
b.BSide:DisconnectBsideheaterwiresand
removelowerdinrail(33)fromBsideheater
(5).
12.Testheaterwireswithohmmeter.
System System
System
Total Total
Total
Heater Heater
Heater
Wattage Wattage
Wattage
Element Element
Element
Ohms Ohms
Ohms
E-30(10
kw)
10,2002,55018–21per
element
E-XP2,
E-30(15
kw)
15,3002,55018–21per
element
NOTICE NOTICE
NOTICE
Topreventashortcircuitorloweringthe
transformerlife,donotsplashuidon
transformer.Covertransformerwithaplastic
sheetorpieceofcardboard.
64 333024S