Weil-McLain 550-141-396/0801 LadderWiringDiagram, PERSeries3, SchematicWiringDiagram, severe

PER Series 3 Electric-Hydronic Boilers Installation Instructions

Wiring

LadderWiringDiagram

L1L2(240VAC)NG

HEATING

ELEMENTS

F72K2

EQUIPMENT

GROUND

F8 3K2

F9 4K2

F10 5K2

F11 6K2

CIRCULATOR

(Note6)

THERMOSTAT

(Note1)

3KED11C

4KED22C

5KED33C

6KED44C

ELECTRONICTIME THERMALTIME

DELAYRELAYS DELAYRELAYS

LegendHIGHVOLTAGEFIELDWIRINGLOWVOLTAGEFIELDWIRING

HIGHVOLTAGEFACTORYWIRINGLOWVOLTAGEFACTORYWIRING

AUnitedDominionCompany

•500BlaineSt.•MichiganCity,IN46360-2388

PartNumber2½min.ON,15sec.OFF550-224-719/0801

TRANSFORMER

Weil-McLain

F1 2K1

F2 3K1

F3 4K1

F4 5K1

F5 6K1

1K1

F6

24VAC 1K

BB HIGHLOW

LIMITLIMIT

RR

2K

H1

H2

H3

H4

Itemsnotprovided

PERSeries3

15KWthru25KW

240VAC/singlephase/60hz

THERMOSTAT OR END SWITCH (Note 1)

To FUSES 2K 2K1 2K2

LIMIT

LOW

3K1	3K2
3K

4K1	4K2
4K

5K1	5K2
5K

6K 6K1

HEATING	ELEMENTS	injuryor	servicing.
		severe	powerbeforeinstallingor
6K2	CONTACTORS	—cancause
RELAYS		hazard

oftheNationalElectricalCodeandany usealuminumconductors. withredwire.

BB

RR

ED1

1

ED2

1

ED3

1

ED4

1

3

3

3

3

HIGH

LIMIT

SchematicWiringDiagram

(Note5)To:30AMP

TRANSFORMER

AMP30

L130AMP

AMP30WIRE

6K1NUTS

AMP15

43

1K

21

CIRCULATORRELAY

To:TD130AMP

H1

AMP30

1C

AMP30

4K2 L230AMP TD25K2

H2

2C

TD3

H3

3C

GEQUIPMENT

GROUND

TD4

H4

4C

OR

2K1

AMP30

3K1

4K1

5K1

1K1

N

2K2

3K2

AMP30

6K2

Connectwireto

fusedlastterminal

RD

BK

THERMALTIME ELECTRONIC DELAYRELAYS TIMEDELAY Electricalshock death.Disconnect

CIRCULATOR 6) (Note

1.Thermostatheatanticipatorsettingmustbe0.45amps.	2.Allwiringmustbeinstalledinaccordancewiththerequirements applicablenational,stateorlocalcoderequirements. 3.AllsafetycircuitwiringmustbeN.E.C.Class1. 4.Useonlycopperconductorsforpowerinputwiring.Donot 5.For208-voltpowersupply,removeorangewireandreplace 6.Maximumcirculatormotoris1/6hp.
Notes:

6 Part number 550-141-396/0801