Elec tri cal 7, Pri mary volt age supply wiring to hu mid ifier 7, Electrical – Nortec NHDI User Manual
Page 11: Primary (line) voltage wiring to unit voltage, Actual), By others)
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L1
L2
Ground
Ground Wire
Ground
Leg
2 Pole
Terminal
Block
Dedicated
Circuit
Breaker
Or
Disconnect
- Single Phase Unit.
- Single Phase Supply.
- Required Voltage Between L1 And L2.
- Load Balanced.
L1
L2
Ground
Ground Wire
Ground
Leg
2 Pole
Terminal
Block
- Single Phase Unit.
- 3 Phase Supply.
- Required Voltage Between L1 And L2.
- Load Will Be Unbalanced.
L3
Neutral
NOTE: VoltageAt Terminal Block Must Be InAccordance With Spec. Label.
All Wiring To Be InAccordance With Existing NationalAnd Local Electrical Codes.
L1
L2
Ground
Ground Wire
Ground
Leg
3 Pole
Terminal
Block
- 3 Phase Unit.
- 3 Phase Supply.
- Required Voltage Between Any Two Legs.
- Load Will Be Balanced.
L3
Neutral
PRIMARY (LINE) VOLTAGE WIRING TO UNIT
VOLTAGE
(ACTUAL)
E
X
T
I
N
T
E
X
T
I
N
T
E
X
T
I
N
T
Dedicated
Circuit
Breaker
Or
Disconnect
Dedicated
Circuit
Breaker
Or
Disconnect
(BY OTHERS)
Figure #14
Primary Voltage Supply Wiring