7
2-424.5 — WIRING DIAGRAMS MODELS HER, VE, PTE
Ø
208V OR 240V/60Hz/3
COIL
FAN
MOT
OR
THERM
LIMIT
CONTROL
CONT
ACT
OR
FUSED DISCONNECT
SWITCH (BY
OTHERS)
GROUND
LUG
POWER SUPPL
Y
FUSE
FUSE
COIL
CONT
ACT
OR
FUSE
FUSE
FUSE
FUSE
HEA
TING ELEMENTS
HEA
TING 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 4
HP @ 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