Chromalox PF450-5 specifications Maintenance, Wiring Diagrams

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MAINTENANCE

5.Rough-in wiring to heater. See Table 2 for line amperes, rec- ommended wire size and conduit size.

6.Wire heater per wiring diagram supplied with this instruction sheet.

Note: Power relay(s) are provided as standard on all heaters.

Prior to operating the heater, verify that the fan hub setscrews are tightened and the push-on clip is secured to assure that the fan blade is securely fas- tened to the motor shaft. Failure to comply could result in personal injury or property damage.

7.Carefully inspect the completed installation. Rotate the fan blade by hand to be sure that it turns freely. Investigate any binding, rubbing or interference.

8.Air diffusers for deflecting the air are optional. See Instruction Sheet PF449 for installation instructions.

ELECTRIC SHOCK HAZARD. Disconnect all power to heater before servicing or replacing heaters. Do not attempt to service heater while unit is operat- ing as there is hazard of electric shock, injury from operating fan, and burns from hot heating elements.

1.Before activating for next heating season, vacuum or use com- pressed air to remove accumulated dust or lint, which other- wise may restrict proper air flow.

2.Periodically check all electrical connections and retighten to avoid electrical wiring difficulties.

WIRING DIAGRAMS

 

Transformer Color Code Index

 

 

 

 

 

 

 

PRI XFMR

120V SEC.

24V SEC.

Elements

 

VOLT

LEAD CLRS

LEAD CLRS LEAD CLRS

 

 

 

 

 

 

H1

H2

X1

X2

X1

X2

 

 

 

 

 

208

BLK

RED

BLK

WHT

YEL

BLU

 

 

 

 

 

240

BLK

ORG

BLK

WHT

YEL

BLU

 

 

 

 

 

277

BLK

BRN

BLK

WHT

YEL

BLU

 

 

 

 

 

480

BLK

BLK/RED

BLK

WHT

YEL

BLU

 

 

 

 

 

 

 

 

 

Cutout

 

 

 

 

 

 

 

 

 

 

 

 

Contactor

T1

 

T2 T3

 

 

 

 

 

C1

L2 L3

 

 

 

 

 

 

 

 

 

L1

 

 

 

 

 

X1

X2

 

 

 

 

 

 

 

 

 

 

 

 

XFMR

 

 

 

 

 

 

 

XFMR

 

Fusing

 

 

 

 

 

 

 

 

 

 

Optional

 

 

 

 

 

 

 

 

H1

H2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L1

L2

L3

T4

208 - 240V Motor

Hook-Up

BLKBLU

M

WHTYEL RED

3ø Jumper

Hook-Up

TB1

277V Motor

Hook-Up

M

BLK BLK

T1 T2

480V Motor

Hook-Up

 

RED

 

BLK

M

BLU

 

 

 

WHT

 

YEL

T1

 

T2

To Contactor

1ø Jumper

Hook-Up

TB2

Customer Wiring

 

 

 

 

 

Factory Wire

Elements

 

 

 

Cutout

 

 

 

 

 

 

Contactor

T1

T2

T3

 

C1

 

 

 

 

 

 

L1 L2 L3

 

 

C1 C2

Thermostat

 

 

 

 

 

 

(By Others)

L1

L2

L3

T4

208 - 240V Motor

Hook-Up

BLKBLU

M

WHTYEL RED

3ø Jumper

Hook-Up

TB1

277V Motor

Hook-Up

M

BLK BLK

T1 T2

480V Motor

Hook-Up

 

RED

 

BLK

M

BLU

 

 

 

WHT

 

YEL

T1

 

T2

To Contactor

1ø Jumper

Hook-Up

 

TB2 C1 C2 Thermostat

Power

(By Others)

60 HZ

Customer Wiring

Fused Switch

(By Others)

Factory Wire

 

L1 L2 L3 T4 TB1

1ø Power

Control

Power

(By Others)

3ø Power 60 HZ

Fused Switch

(By Others)

L1 L2 L3 T4 TB1

1ø Power

Figure 3

Figure 4

 

Customer Wiring

 

 

 

208 - 240V Motor

 

 

 

 

Hook-Up

 

Factory Wire

Elements

 

 

 

 

BLU

 

 

 

 

 

 

BLK

 

 

 

 

 

 

M

 

 

 

 

 

 

 

WHT

YEL

 

 

 

 

 

 

RED

 

 

 

Cutout

 

 

 

 

 

 

 

Contactor

T1

T2 T3

 

 

 

 

C1

L2 L3

 

 

 

 

 

 

L1

 

 

 

 

 

 

 

 

 

3ø Jumper

 

 

 

 

 

 

 

Hook-Up

 

TB2

C1 C2

Thermostat

L1 L2 L3

T4

TB1

 

 

 

(By Others)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power

 

 

 

 

 

 

 

60 HZ

 

 

 

 

 

 

 

Fused Switch

 

 

 

 

 

 

(By Others)

277V Motor

Hook-Up

M

BLK BLK

T1 T2

480V Motor

Hook-Up

 

RED

 

BLK

M

BLU

 

 

 

WHT

 

YEL

T1

 

T2

To Contactor

1ø Jumper

Hook-Up

L1 L2 L3 T4 TB1

1ø Power

Transformer Color Code Index

 

 

PRI XFMR

120V SEC. 24V SEC.

Elements

208 - 240V

VOLT LEAD CLRS

LEAD CLRS LEAD CLRS

Motor

 

 

 

Hook-Up

 

 

 

 

H1

H2

X1

X2

X1

X2

 

 

 

 

BLK

 

BLU

208

BLK

RED

BLK

WHT

YEL

BLU

 

 

 

 

 

 

 

 

 

 

 

 

240

BLK

ORG

BLK

WHT

YEL

BLU

 

 

 

 

 

M

 

277

BLK

BRN

BLK

WHT

YEL

BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

480 BLK BLK/RED BLK WHT

YEL

BLU

 

 

 

 

WHT

 

YEL

 

Customer Wiring

 

 

 

 

 

 

 

RED

 

 

 

Factory Wire

 

 

 

 

 

 

 

 

 

 

 

 

2 PDT Switch

 

 

 

Cutout

 

Contactor

 

 

 

(By Others)

 

 

XFMR

T1

T2

T3

 

T1

T2

T3

 

 

Thermostat

 

 

X1

X2

C1

L2 L3

 

C3

 

L3

 

 

(By Others)

 

 

 

 

L1

 

L1 L2

 

Heat

 

 

 

H1

H2

 

 

 

 

3ø Jumper

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hook-Up

 

 

 

Fan

 

C4 TB2

TB2 C2 C1

XFMR

L1 L2

L3

T4

TB1

 

 

 

 

 

Fusing

 

 

 

 

 

 

 

 

 

 

 

 

Optional

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power

 

 

 

 

 

 

 

 

 

 

 

 

60 HZ

Optional Heat Recovery Switch

Fused Switch

(By Others)

(By Others)

277V Motor

Hook-Up

M

BLK BLK

T1 T2

480V Motor

Hook-Up

 

RED

 

BLK

M

BLU

 

 

 

WHT

 

YEL

T1

 

T2

To Contactor

1ø Jumper

Hook-Up

L1 L2 L3 T4 TB1

1ø Power

Figure 5

Customer Wiring

 

208 - 240V

Elements

Motor

Factory Wire

 

Hook-Up

Figure 6

2 PDT Switch (By Others)

Thermostat (By Others)

Heat

Fan

 

 

 

 

 

 

 

 

BLK

 

BLU

 

 

 

 

 

 

 

 

 

M

 

 

 

 

 

 

 

 

 

WHT

 

YEL

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

T1

T2

T3

 

 

T1

T2

T3

 

 

 

C1

 

 

 

Contactor

C3

 

Contactor

 

 

 

L1

L2 L3

 

 

L1 L2

L3

 

 

Cutout

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3ø Jumper

 

 

 

 

 

 

 

 

 

 

Hook-Up

 

 

 

C4

C2 C1

TB2

L1 L2 L3

T4

TB1

 

 

 

To Contactor

1ø Jumper Hook-Up

Note: For 208-240V motor wiring, red and yellow motor wires to be connected at T2 terminal.

MOTOR LUBRICATION

Motors in VUH-C-05 through VUH-C-10 have sleeve bearings which are factory lubri- cated. Relubricate annually, if neccessary, with No. 10 non-detergent oil.

Note: All fan motors are totally enclosed and internally thermal overload protected.

 

 

Power

 

60 HZ

Optional Heat Recovery Switch

Fused Switch

(By Others)

(By Others)

 

L1 L2 L3 T4 TB1

1ø Power

Figure 7

Image 3
Contents Volts Air Delivery Data Installation InstructionsElectrical Data InstallationWiring Diagrams MaintenanceElements, Motor and Fan Optional Transformer FusingRenewal Parts Identification Common Parts

PF450-5 specifications

The Chromalox PF450-5 is a highly regarded product in the realm of electrical heating solutions. Known for its reliability and efficiency, this electric heating unit is designed to cater to a wide array of industrial applications, ranging from process heating to temperature maintenance.

One of the main features of the Chromalox PF450-5 is its advanced heating technology. The unit typically employs a powerful resistive heating element that provides precise temperature control and rapid heating capabilities. This allows for consistent performance, even in challenging environments. The PF450-5 is engineered to minimize energy consumption, making it an environmentally friendly choice for businesses looking to reduce their carbon footprint while maintaining operational efficiency.

The design of the PF450-5 emphasizes user convenience. It often includes an intuitive control panel that allows operators to easily monitor and adjust temperature settings. Many models come equipped with digital displays for clear visibility of operating conditions, facilitating quick adjustments and ensuring optimal performance. Additionally, the unit often features built-in safety mechanisms, including over-temperature protection and alarms, which provide peace of mind for users.

Durability is another standout characteristic of the Chromalox PF450-5. Constructed with high-quality materials, this unit is designed to withstand harsh industrial conditions. It resists corrosion and damage, thus prolonging the product's lifespan and reducing maintenance costs. This durability is further enhanced by components that are resistant to thermal shock, making it suitable for various applications that may experience sudden changes in temperature.

Flexibility is crucial in industrial settings, and the PF450-5 does not disappoint. It is available in various configurations to suit different operational needs. Users can select from different wattages, voltages, and installation options to ensure that the unit fits seamlessly into their existing processes. Whether deployed in oil and gas, food processing, or chemical manufacturing, the Chromalox PF450-5 proves to be a versatile heating solution that meets diverse industry standards.

In conclusion, the Chromalox PF450-5 is a sophisticated heating solution that excels in efficiency, durability, and user-friendliness. Its cutting-edge technology, robust safety features, and flexibility make it an ideal choice for many industrial applications. Businesses seeking reliable temperature control will find the PF450-5 to be an investment that pays dividends in performance and energy savings.