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Idiomas disponibles
Idiomas disponibles
120 Volt, 1 Phase Electric Supply
Disconnect Switch At Cooler
See Notes 1 & 2
Pump Motor
Equipment
Ground
Blower Motor
208, 240, or 480 Volt, 3 Phase Blower & 120 Volt 1 Phase Pump & Control Electric Supply
Motor Starter With
Overload Protection Sized
To Match Motor Full Load
Current
See Note 1
Disconnect Switch At
Cooler
See Notes 1 & 2
Motor Starter With
Overload Protection
Sized To Match Motor
Full Load Current
See Note 1
Disconnect Switch At Cooler
See Notes 1 & 2
WARNING:
Electrical hookup should be performed by a qualifi ed electrician. All electrical wiring must conform to national and
local standards.
NOTE 1. All switches, motor starters, transformers, fuses, junction boxes, receptacles, receptacle boxes, cover plates, and conductors shall be supplied by the
installer and must comply with local and national electrical codes.
NOTE 2. The national electric code requires a disconnect switch located at equipment if the main disconnect at equipment controller is not visible from the equip-
ment. If more than one disconnect is used they must be mounted adjacent to one another.
NOTE 3. A receptacle for a NEMA 5-15P plug is required for 120V recirculating pump and a receptacle for a NEMA 6-15P plug for 230V pump.
NOTE 4. The control contacts may be part of a switch, thermostat or other control device.
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Typical Electrical Wiring Diagrams
Control Contacts
See Note 4
L
H
P
N
Gnd
Fuses
See Note 1
Main Disconnect
See Note 1
Cooler Cabinet
See Note 3
• 115 Volt single phase blower motor.
• 120 Volt pump motor.
• Diagram shown for two speed motor.
Low speed circuit drawn with dashed
lines is not required for single speed.
Control Contacts
See Note 4
H
P
T3
Disconnect Switch At Cooler
T2
See Note 1&2
T1
Gnd
Cooler Cabinet
See Note 3
Pump Motor
Equipment
Blower Motor
Ground
208, 240, or 480 Volt, 3 Phase Blower Electric Supply With Transformer For Pump & Control
Control Contacts
See Note 4
T3
T2
T1
Gnd
Equipment
Blower Motor
Ground
manuals search engine
Disconnect Switch At Cooler
See Notes 1 & 2
L1
120 Volts
N
1 Phase
Gnd
Power Supply
Equipment
Ground
Blower Motor
Gnd
Main Disconnects
See Note 1
N
Gnd
Gnd
Fuses
See Note 1
• Three phase single speed blower motor
• Three pole motor starter with overload
protection
• 120V single phase control and pump shown.
If 240V control and pump are to be used, then
both legs of power supply must be fused.
H
P
120
V
Disconnect Switch At Cooler
See Notes 1 & 2
Cooler Cabinet
See Note 3
Pump Motor
240 Volt, 1 Phase Electric Supply
Control Contacts
See Note 1
L
H
P
120V
L2
Gnd
Fuses
Transformer
See Note 1
Cooler Cabinet
See Note 3
• 230 Volt single phase blower motor.
• 120V pump motor shown. Trans-
former may be omitted when a 240V
pump is used with a 240V supply
• Diagram shown for two speed motor.
Pump Motor
Low speed circuit drawn with dashed
lines is not required for single speed.
Typical Control Contacts
208, 240, or 480V
L1
Function and Connection
3 Phase
L2
L3
Power Supply
L1
120V
N
1 Phase
Function
Power Supply
Off
Pump Only
Hi-Cool
* Low-Cool
Hi-Fan
* Low-Fan
* Omit for single speed blower motor
Fuses
See Note 1
Transformer
See Note 1
• Three phase single speed blower motor.
• Three pole motor starter with overload protection.
• 120V single phase pump powered by a transformer.
Transformer may be omitted when 240V control &
pump are used with a 240V supply.
L1
208 or 240V
L2
1 Phase
Gnd
Power Supply
Main Disconnect
See Note 1
L - Low Fan
P
- Pump
H - Hi Fan
L1 - Supply Power
Connection
None
L1-P
L1-H
L1-L & L1-P
L1-H
L1-L
Gnd
208, 240 or 480V
L1
L2
3 Phase
L3
Power Supply
Main Disconnect
See Note 1
110525
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