Chromalox Electric Heater PF450 5 User Manual

SERVICE REFERENCE  
Installation Instructions  
DIVISION  
SALES  
4
SECTION VUH  
and  
REFERENCE  
(Supersedes PF450-4)  
PF450-5  
RENEWAL PARTS IDENTIFICATION  
161-057822-001  
DATE  
JULY, 2002  
VUH Vertical Unit Heater  
12" Min.  
30" Min.  
8-1/2"  
3-7/8"  
4-11/16" Dia.  
Mounting  
Holes  
Drop  
Ceiling  
17"  
Anemostat**  
Diffuser  
Position With  
Junction Box  
Facing Away  
From Walls  
Note:  
30" Min.  
Knockout Location  
See Table 2  
For Easy Access  
4-11/16" Dia.  
Mounting  
Holes  
A
12" Min.  
E
For Recommended  
Conduit Size.  
F
H
Approx.  
D
B
M
4-11/16" Dia.  
Mounting Holes  
7' Min.  
To Floor  
C
L
Warm Air  
Discharge  
C
Figure 2  
Figure 1  
Volts  
Specifications — Table 1  
Heating Capacity  
Model  
Air Delivery Data  
Dimensions (In.)  
Max.  
Mtg.  
Height  
(Ft.)  
Mtg.  
Weight  
(Lbs.)  
1
3
Outlet  
kW  
BTUH  
CFM  
FPM  
A
B
C
D
E
F
H
M
Phase Phase  
Temp.˚F*  
208  
240  
277  
208  
240  
480  
VUH-C-05  
5
17,000  
450  
703  
102  
10  
12  
14  
13-1/2  
26  
3-1/4  
6-5/8  
4
7-1/4 10-5/8  
7-1/4 10-5/8  
48  
48  
208  
240  
277  
208  
240  
480  
VUH-C-07 7.5  
9.8  
25,500  
34,000  
550  
712  
880  
102  
104  
14  
14  
13-1/2  
13-1/2  
26  
26  
3-1/4  
3-1/4  
6-5/8  
6-5/8  
4
4
208  
208  
VUH-C-10  
1160  
14  
7-1/4 10-5/8  
48  
10  
240  
277  
240  
480  
* Based on 60˚F entering air.  
** For use with drop ceiling only. Installation in a drop ceiling should be in accordance with NFPA-90A and Article 300-22 of (NEC).  
*** For instructions on VUH units rated 15-25 kW refer to Bulletin PF451; VUH units rated 30-50 refer to Bulletin PF452.  
© 2010 Chromalox®, Inc.  
 
MAINTENANCE  
5. Rough-in wiring to heater. See Table 2 for line amperes, rec-  
8. Air diffusers for deflecting the air are optional. See Instruction  
ommended wire size and conduit size.  
Sheet PF449 for installation instructions.  
6. Wire heater per wiring diagram supplied with this instruction  
sheet.  
Note: Power relay(s) are provided as standard on all heaters.  
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.  
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.  
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  
208 - 240V Motor  
208 - 240V Motor  
Hook-Up  
277V Motor  
Hook-Up  
Customer Wiring  
Factory Wire  
277V Motor  
Hook-Up  
Hook-Up  
Elements  
PRI XFMR 120V SEC. 24V SEC.  
Elements  
BLU  
BLK  
VOLT LEAD CLRS LEAD CLRS  
LEAD CLRS  
BLU  
BLK  
M
M
H1  
208 BLK  
240 BLK  
277 BLK  
H2  
X1  
X2  
X1 X2  
BLK  
BLK  
T2  
M
M
BLK  
T1  
BLK  
T2  
RED  
ORG  
BRN  
BLK WHT YEL BLU  
BLK WHT YEL BLU  
BLK WHT YEL BLU  
T1  
WHT  
RED  
YEL  
WHT  
RED  
YEL  
480  
BLK BLK/RED BLK WHT YEL BLU  
480V Motor  
Hook-Up  
480V Motor  
Hook-Up  
Cutout  
Cutout  
RED  
RED  
BLK  
T1  
C1  
T2 T3  
T1  
T2 T3  
BLU  
YEL  
BLK  
M
Contactor  
BLU  
YEL  
Contactor  
C1  
M
L1 L2 L3  
L1 L2 L3  
WHT  
WHT  
X1  
H1  
X2  
T2  
T1  
3ø Jumper  
Hook-Up  
T1  
T2  
XFMR  
Fusing  
Optional  
3ø Jumper  
Hook-Up  
XFMR  
To Contactor  
To Contactor  
1ø Jumper  
Hook-Up  
H2  
Thermostat  
(By Others)  
C1 C2  
TB2  
1ø Jumper  
Hook-Up  
TB1  
L1 L2 L3 T4  
TB1  
L1 L2 L3 T4  
3ø  
3ø  
Power  
60 HZ  
C1 C2  
TB2  
Thermostat  
(By Others)  
Power  
60 HZ  
L1 L2 L3 T4  
1ø Power  
L1 L2 L3 T4  
Control  
Power  
(By Others)  
TB1  
TB1  
Fused Switch  
(By Others)  
Fused Switch  
(By Others)  
Customer Wiring  
Factory Wire  
1ø Power  
Figure 3  
Figure 4  
Transformer Color Code Index  
277V Motor  
Hook-Up  
208 - 240V Motor  
Hook-Up  
Customer Wiring  
Factory Wire  
277V Motor  
PRI XFMR 120V SEC. 24V SEC.  
208 - 240V  
Hook-Up  
Elements  
Elements  
Motor  
VOLT LEAD CLRS LEAD CLRS  
LEAD CLRS  
BLK  
BLU  
Hook-Up  
M
M
H1  
208 BLK  
240 BLK  
277 BLK  
H2  
X1  
X2  
X1 X2  
BLK  
BLK  
T2  
BLU  
BLK  
RED  
ORG  
BRN  
BLK WHT YEL BLU  
BLK WHT YEL BLU  
BLK WHT YEL BLU  
BLK  
BLK  
T2  
M
T1  
M
T1  
WHT  
RED  
YEL  
WHT  
RED  
YEL  
480  
BLK BLK/RED BLK WHT YEL BLU  
Customer Wiring  
Factory Wire  
480V Motor  
Hook-Up  
480V Motor  
Hook-Up  
Cutout  
RED  
RED  
Contactor  
T2  
T3  
Cutout  
2 PDT Switch  
(By Others)  
Thermostat  
(By Others)  
BLK  
BLK  
T1  
C1  
T2 T3  
BLU  
YEL  
T1  
C1  
L1  
T1 T2 T3  
L1 L2 L3  
BLU  
YEL  
XFMR  
M
M
Contactor  
C3  
X1  
H1  
X2  
L1 L2 L3  
L2 L3  
WHT  
WHT  
T2  
T2  
T1  
T1  
3ø Jumper  
Hook-Up  
H2  
Heat  
3ø Jumper  
Hook-Up  
To Contactor  
To Contactor  
1ø Jumper  
Hook-Up  
1ø Jumper  
Hook-Up  
Fan  
TB1  
TB1  
L1 L2 L3 T4  
L1 L2 L3 T4  
Thermostat  
(By Others)  
XFMR  
Fusing  
Optional  
C1 C2  
TB2  
C4 TB2 TB2  
C2 C1  
3ø  
Power  
60 HZ  
3ø  
Power  
60 HZ  
L1 L2 L3 T4  
1ø Power  
L1 L2 L3 T4  
1ø Power  
TB1  
TB1  
Optional Heat Recovery Switch  
(By Others)  
Fused Switch  
(By Others)  
Fused Switch  
(By Others)  
Figure 6  
Figure 5  
208 - 240V  
Motor  
Hook-Up  
Customer Wiring  
Factory Wire  
Elements  
BLK  
BLU  
M
WHT  
RED  
YEL  
Note: For 208-240V motor wiring, red and yellow motor wires to be connected at T2  
terminal.  
2 PDT Switch  
(By Others)  
T1  
C1  
L1  
T2  
T1 T2 T3  
T3  
Thermostat  
(By Others)  
MOTOR LUBRICATION  
Contactor  
Contactor  
C3  
L2 L3  
L1  
L2 L3  
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.  
Heat  
Fan  
Cutout  
TB2  
To Contactor  
Note: All fan motors are totally enclosed and internally thermal overload protected.  
3ø Jumper  
Hook-Up  
1ø Jumper  
Hook-Up  
TB1  
L1 L2 L3 T4  
C4  
C2 C1  
3ø  
Power  
60 HZ  
L1 L2 L3 T4  
TB1  
Optional Heat Recovery Switch  
(By Others)  
Fused Switch  
(By Others)  
1ø Power  
Figure 7  
 
RENEWAL PARTS IDENTIFICATION  
MANUFACTURER PART NUMBER BREAKDOWN  
(LOCATED ON UNIT NAMEPLATE)  
V
U
H
C
Common Parts  
Diagram  
Item No.  
Description  
Part No.  
5
6
Grille  
134-130456-001  
Overheat Cutout 300-024283-003  
Controls  
Elements, Motor and Fan  
Element  
Part No.  
(Item No. 1)  
Motor  
Fan  
Dia. Wiring  
Item Dia.  
No. Figure  
Code  
Code  
Nos.  
Part  
Number  
Wiring Diagram  
Part No.  
kW Volts Phase  
Nos.  
Part No.  
Part No.  
Description  
(Item No. 2)  
(Item No. 4)  
05-81  
05-83  
05-21  
05-23  
05-71  
05-43  
07-81  
07-83  
07-21  
07-23  
07-71  
07-43  
10-81  
10-83  
10-21  
10-23  
10-71  
10-43  
1
3
1
3
1
3
1
3
1
3
1
3
1
3
1
3
1
3
Contactor-24V Coil (30A)  
30-00 Contactor-24V Coil (50A)  
Transformer  
072-303180-001  
072-303180-002  
315-304252-002  
072-303180-001  
072-303180-002  
072-303180-007  
072-303180-008  
315-304252-001  
072-303180-007  
072-303180-008  
315-304252-001  
072-303180-007  
072-303180-008  
3
208  
240  
118-130480-001 (3)  
118-130480-003 (3)  
3
7
3
3
3
3
7
3
3
7
3
3
3
3
3
3
3
4
3
170-057688-001  
170-057688-002  
170-057688-001  
193-057699-001  
5
112-130398-001  
Contactor-24V Coil (30A)  
Contactor-24V Coil (50A)  
31-00  
277  
480  
118-130480-004 (3) 193-057700-001  
118-130480-005 (3) 193-057699-001  
Contactor-120V Coil (30A)  
32-00 Contactor-120V Coil (50A)  
Transformer  
Contactor-120V Coil (30A)  
32-45 Contactor-120V Coil (50A)  
Transformer  
208  
118-130480-002 (3)  
193-057699-001  
118-130480-017 (3)  
7.5 240  
112-130398-002  
112-130398-003  
6
170-057688-004  
277  
480  
118-130480-007 (3) 193-057700-001  
118-130480-008 (3) 193-057699-001  
Contactor-120V Coil (30A)  
Contactor-120V Coil (50A)  
33-00  
4
5
7
170-057688-002  
170-057688-003  
170-057688-005  
Contactor-208/240V Coil (30A) 072-303180-013  
Contactor-208/240V Coil (50A) 072-303180-014  
Contactor-208/240V Coil (30A) 072-303180-013  
Contactor-208/240V Coil (50A) 072-303180-014  
9.8 208  
118-130480-009 (3)  
193-057699-001  
118-130480-002 (3)  
34-00  
34-45  
240  
10  
277  
480  
118-130480-006 (3) 193-057700-001  
118-130480-010 (3) 193-057699-001  
Optional Transformer Fusing  
NOTES: Number in parenthesis ( ) indicates quanitity required of that part.  
Fuse Type  
Part Number  
KTK-3  
128-047763-007 (2)  
Fan Motor  
Contactor  
Transformer  
Grille  
Heating Element  
Fan Blade  
Overheat Cutout  
Limited Warranty:  
Please refer to the Chromalox limited warranty applicable to this product at  
2150 N. RULON WHITE BLVD., OGDEN, UT 84404  
Phone: 1-800-368-2493  
 

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