Modine Manufacturing VE Series Guida rapida

2-424.6

March, 2016

WIRING DIAGRAMS

Models HER, VE, PTE electric unit heaters

Two-In One Diagrams

Two wiring diagrams are furnished for each circuit configuration

in this manual. Included are a connection diagram at the left

for field installation and a circuit schematic at the right to aid in

continuity and trouble shooting.

Solid lines show pre-wiring performed at the factory; dotted

lines inform the installer of connections required to put the

heater in operation.

NOTE: As indicated in every diagram, all wiring must comply

with the National Electrical Code and all local codes. All

components must agree with their respective power source.

Wiring Diagram Selection

Diagrams are readily identified in the page location index on

the following page. This allows for the correct wiring diagram

to be selected using the model, size, and power code of the

unit heater.

Select the correct wiring diagrams as follows:

1. Determine unit heater model and size.

2. Select power code number from Table 2.3.

3. Reference unit heater model in the Page Location Index

(Table 2.4) with power code number of the corresponding

wiring diagram.

CAUTION

Turn off all power to unit before wiring. Failure to wire this unit

according to this wiring diagram may result in injury to the

installer or user. For deviations, contact factory.

Abbreviations and Symbols

To facilitate interpretation and enable simplification

the abbreviations and symbols have been selected as

recommended by ANSI (American National Standards

Institute) and NEMA (National Electrical Manufacturers

Association) standards.

XFMR or TR Transformer

VVolts

Hz Cycle or Hertz

φPhase

LC Limit Control

THERM or TH Thermostat

GGround

HTR Heater

HHot or High

SW Switch

CCommon

"J" Box Junction Box

LLow

H1, H2, etc. Transformer Primary Terminals

O.L.C. Overload Contact

RRelay

Rc Relay Contact

VA Volt-Ampere

X1,X2, etc. Transformer Secondary Terminals

L1, L2, etc. Electric Load Terminals

T1, T2, etc. Starter or Motor Terminals

Wire Color Coding

BK Black

BU Blue

RRed

WWhite

YYellow

Wire Color Coding

BK Black

BL Blue

RRed

WWhite

YYellow

X1,X2, etc. Transformer Secondary Terminals

L1, L2, etc. Electric Load Terminals

T1, T2, etc. Starter or Motor Terminals

Table 2.1

Unit Power Requirements (AMPS) - HER Models

Table 2.2

Unit Power Requirements (AMPS) - VE & PTE Models

2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE

Table 2.3

Power Code Selection

Power Code 11 12 31 32 33

Power Supply (Volts/Phase)

208V/1 240V/1 208V/3 240V/3 480V/3

Table 2.4

Electric Unit Heater Page Location Index

Model No. Power Code

11 12 31 32 32

HER 30 3 3 5 5 8

HER 50 3 3 5 5 8

HER 75 3 3 5 5 8

HER100 4 4 5 5 8

HER125 - - 5 5 8

HER150 - - 6 5 8

HER200 - - 7 7 8

HER250 - - 7 7 8

VE 50 - 9 10 10 11

VE 75 - 9 10 10 11

VE100 - 9 10 10 11

VE150 - - 13 13 14

VE200 - - - 13 14

VE250 - - - - 14

VE300 - - - - 12

VE400 - - - - 12

VE500 - - - - 12

PTE300 - - - - 12

PTE400 - - - - 12

PTE500 - - - - 12

Power Supply HER 30 HER 50 HER 75 HER100 HER125 HER150 HER200 HER250

208/1 14.9 24.5 36.5 49.4 - - - -

240/1 12.9 21.3 31.7 42.9 - - - -

208/3 8.8 14.3 21.3 29.0 36.0 42.9 56.8 70.7

240/3 7.7 12.5 18.5 25.3 31.4 37.4 49.4 61.4

480/3 3.8 6.5 9.5 13.3 16.3 19.3 25.3 31.4

Power Supply VE50 VE75 VE100 VE150 VE200 VE200

VE/PTE300 VE/PTE400 VE/PTE500

1-stage 2-stage 1-stage 2-stage 1-stage 2-stage

208/1 - - - - - - - - - - - -

240/1 21.4 31.9 42.3 - - - - - - - - -

208/3 14.5 21.4 28.3 42.5 - - - - - - - -

240/3 12.7 18.6 24.6 37.0 49.0 - - - - - -

480/3 6.7 9.7 12.7 19.0 25.0 31.0 19.5 37.6 25.5 49.6 31.5 61.5

2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE

POWER SUPPLY

208V OR 240V/60 Hz/1

LUG

GROUND

FUSED DISCONNECT

SWITCH (BY OTHERS)

CONTACTOR

HEATING ELEMENTS

LIMIT

CONTROL

THERM

MOTOR

FAN

COIL

5H70253A1 208V or 240V, single-phase power supply, 3kw, 5kw, 7.5kw Horizontal Models

2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE

FUSEFUSE

POWER SUPPLY

208V OR 240V/60 Hz/1

LUG

GROUND

FUSED DISCONNECT

SWITCH (BY OTHERS)

CONTACTOR

HEATING ELEMENTS

LIMIT

CONTROL

THERM

MOTOR

FAN

COIL

5H70253A2 REV F 208V or 240V, single-phase power supply, 10kw Horizontal Model

2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE

5H70253A4 REV E 208V or 240V, three-phase power supply, 3kw, 5kw, 7.5kw, 10kw, 12.5kw, 15kw Horizontal Models

15kw on 240V/3

only

POWER SUPPLY

LUG

GROUND

FUSED DISCONNECT

SWITCH (BY OTHERS)

CONTACTOR

HEATING ELEMENTS

LIMIT

CONTROL

THERM

MOTOR

FAN

COIL

208V OR 240V/60Hz/3

2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE

208V/60Hz/3

COIL

FAN

MOTOR

THERM

CONTROL

LIMIT

HEATING ELEMENTS

CONTACTOR

SWITCH (BY OTHERS)

FUSED DISCONNECT

GROUND

LUG

POWER SUPPLY

FUSE FUSE

5H70253A5 208V, three-phase power supply, 15kw Horizontal Model

2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE

208V OR 240V/60Hz/3

COIL

FAN

MOTOR

THERM

LIMIT

CONTROL

CONTACTOR

FUSED DISCONNECT

SWITCH (BY OTHERS)

GROUND

LUG

POWER SUPPLY

FUSE

COIL

CONTACTOR

FUSE

FUSE FUSE

FUSE

HEATING ELEMENTS

5H70253A6 208V or 240V, three-phase power supply, 20kw, 25kw Horizontal Models

WARNING - HAZARDOUS VOLTAGE! IMPORTANT WIRING LEGEND

DISCONNECT POWER SUPPLY BEFORE MAKING CONNECTIONS.

ALL COMPONENTS MUST AGREE WITH THEIR RESPECTIVE

POWER SOURCE.

ALL UNITS MUST BE WIRED STRICTLY IN ACCORDANCE WITH

WIRING DIAGRAM FURNISHED WITH THE UNIT. ANY WIRING

DIFFERENT FROM THE WIRING DIAGRAM COULD RESULT IN A

HAZARD TO PERSONS AND PROPERTY. DAMAGE TO OR

FAILURE OF UNITS CAUSED BY INCORRECT WIRING IS NOT

COVERED BY STANDARD WARRANTY.

ANY ORIGINAL FACTORY WIRING THAT REQUIRES

REPLACEMENT MUST BE REPLACED WITH WIRING MATERIAL

HAVING A TERMPERATURE RATING OF AT LEAST 105ºF.

INSTALLATION OF WIRING MUST

CONFORM WITH LOCAL BUILDING

CODES OR IN THE ABSENCE OF LOCAL

CODES, OF THE ELECTRICAL CODE

ANSI/NFPA 70 - LATEST EDITION. UNIT

MUST BE ELECTRICALLY GROUNDED IN

CONFORMANCE TO THIS CODE.

IN CANADA, WIRING MUST COMPLY WITH

CSA C22.1, PART I , ELECTRICAL CODE -

LATEST EDITION.

FACTORY

INSTALLED

CONNECTED

PATH

FIELD

INSTALLED

COMPONENT

TERMINAL

BUS BAR

LIMIT

CONTROL

FAN

MOTOR

LINE VOLTAGE

THERMOSTAT

(MIN RATING

4HP @ 240V)

CONTROL

TERMINAL

BLOCK

FUSED

DISCONNECT

SWITCH

(BY OTHERS)

L1 GND

208V OR

240V/60Hz/3Ph

POWER SHOWN

POWER

TERMINAL

BLOCK

L3 T3

CONTACTOR 1

HEATING ELEMENTS

L3 T3

CONTACTOR 1

FUSE BLOCK

GROUND

LUG

HEATING ELEMENTS

2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE

480V/60Hz/3

HEATING ELEMENTS

SWITCH (BY OTHERS)

FUSED DISCONNECT

480V

240V

FUSE

GROUND

LUG

POWER SUPPLY

FUSE

THERM

MOTOR

FAN

COIL

CONTROL

LIMIT

CONTACTOR

5H70253A7 480V or 600V, three-phase power supply, 3kw, 5kw thru 25kw Horizontal Models

2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE

COIL

FAN

MOTOR

THERM

CONTROL

LIMIT

HEATING ELEMENTS

CONTACTOR

SWITCH (BY OTHERS)

FUSED DISCONNECT

GROUND

LUG

240V/60Hz/1

POWER SUPPLY

5H70253A8 240V, single-phase power supply, 5kw, 7.5kw, 10kw Vertical Models

2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE

COIL

FAN

MOTOR

THERM

LIMIT

CONTROL

CONTACTOR

SWITCH (BY OTHERS)

FUSED DISCONNECT

GROUND

LUG

208V OR 240V/60Hz/3

POWER SUPPLY

HEATING ELEMENTS

5H70253A9 208V or 240V, three-phase power supply, 5kw, 7.5kw, 10kw Vertical Models

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