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Table ED-3 — Unit Wiring With Electric Heat (Single Point Connection, Continued)
Standard Indoor Motor Oversize Indoor Motor
To Use Heater Heater Control Max Fuse Size Or Max Fuse Size Or
Tons With Model No. KW Rating
1
Stages MCA Max Circuit Breaker
2
MCA Max Circuit Breaker
2
460 Volts Three Phase
AYDHTRK418A 18.0 1 58 60 61 70
WCD150B4 AYDHTRK436A 36.0 2 85 90 88 90
AYDHTRK454A 54.0 2 112 125 115 125
12½
AYHHTRP418A 18.0 1 58 60 61 70
WCH150B4 AYHHTRP436A 36.0 2 85 90 88 90
AYHHTRP454A 54.0 2 112 125 115 125
AYDHTRK418A 18.0 1 67 70 70 70
WCD180B4 AYDHTRK436A 36.0 2 94 100 97 100
AYDHTRK454A 54.0 2 121 125 124 125
15
AYHHTRP418A 18.0 1 67 70 70 70
WCH180B4 AYHHTRP436A 36.0 2 94 90 97 100
AYHHTRP454A 54.0 2 121 125 124 125
AYDHTRL436A 36.0 2 104 110 107 110
WCD240B4 AYDHTRL454A 54.0 2 131 150 134 150
AYDHTRK472A 72.0 2 158 175 161 175
20
AYHHTRN436A 36.0 2 104 110 107 110
WCH240B4 AYHHTRN454A 54.0 2 131 150 134 150
AYHHTRN472A 72.0 2 158 175 161 175
NOTES:
1. Heater kw ratings are at 480V for 460V unit
2. HACR type circuit breaker per NEC.