Modine Manufacturing VE Series Quick start guide

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

2
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

3
2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE
POWER SUPPLY
208V OR 240V/60 Hz/1
Ø
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

4
2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE
FUSEFUSE
POWER SUPPLY
208V OR 240V/60 Hz/1
Ø
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

5
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
Ø
POWER SUPPLY
LUG
GROUND
1
FUSED DISCONNECT SWITCH (BY OTHERS)
CONTACTOR
HEATING ELEMENTS
LIMIT CONTROL
THERM
MOTOR
FAN
COIL
208V OR 240V/60Hz/3
Ø

6
2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE
Ø
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

7
2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE
Ø
208V OR 240V/60Hz/3
COIL
FAN
MOTOR
THERM
LIMIT CONTROL
CONTACTOR
FUSED DISCONNECT SWITCH (BY OTHERS)
GROUND
LUG
POWER SUPPLY
FUSE
FUSE
COIL
CONTACTOR
FUSE
FUSE FUSE
FUSE
HEATING ELEMENTS
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
1
4HP @ 240V)
CONTROL
TERMINAL
BLOCK
L3
FUSED
DISCONNECT
SWITCH
(BY OTHERS)
L2
L1 GND
208V OR
240V/60Hz/3Ph
POWER SHOWN
POWER
TERMINAL
BLOCK
L3 T3
CONTACTOR 1
L1
L2
T1
T2
HEATING ELEMENTS
L3 T3
CONTACTOR 1
L1
L2
T1 T2
FUSE BLOCK
FUSE BLOCK
GROUND
LUG
HEATING ELEMENTS

8
2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE
Ø
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

9
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
Ø
240V/60Hz/1
POWER SUPPLY
5H70253A8 240V, single-phase power supply, 5kw, 7.5kw, 10kw Vertical Models

10
2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE
COIL
FAN
MOTOR
THERM
LIMIT CONTROL
CONTACTOR
SWITCH (BY OTHERS)
FUSED DISCONNECT
GROUND
LUG
Ø
208V OR 240V/60Hz/3
POWER SUPPLY
HEATING ELEMENTS
5H70253A9 208V or 240V, three-phase power supply, 5kw, 7.5kw, 10kw Vertical Models