Chromalox Electric Heater PF452 4 User Manual

4
VUH  
(Supersedes PF452-3)  
PF452-4  
161-057824-001  
JULY, 2002  
Type VUH Vertical Unit Heater  
Figure 1  
Volts  
Figure 2  
Specifications – Table 1  
Max.  
Mtg.  
Height  
(Ft.)  
Heating Capacity  
Air Delivery  
FPM  
Dimensions (In.)  
Mtg.  
Weight  
(Lbs.)  
Model  
Outlet  
Temp. °F*  
kW  
BTUH  
1 Phase 3 Phase CFM  
A
B
C
D
E
F
H
M
208  
VUH-C-30 30  
102,000  
240  
480  
2500  
1200  
96  
33  
18-7/8  
19  
34  
10-5/8 15-1/4  
3
11  
20-3/4  
250  
38.5  
VUH-C-40  
39  
240  
480  
136,000  
170,000  
2500  
2500  
1200  
1200  
108  
120  
30  
27  
18-7/8  
18-7/8  
19  
19  
34  
34  
10-5/8 15-1/4  
10-5/8 15-1/4  
3
3
11  
11  
20-3/4  
20-3/4  
250  
250  
VUH-C-50 50  
480  
*Based on 60°F entering air.  
**For instructions on VUH units rated S-10 kW refer to Bulletin PF450  
***For instructions on VUH unites rated IS-25 kW refer to Bulletin PF451  
© 2010 Chromalox, Inc.  
 
WIRING DIAGRAMS  
Figure 3  
170-057688-011  
Notes:  
1. C1 Must Be Con-  
nected To 1st Stage  
Of Thermostat  
2. For Single Stage  
Operation Jumper  
C1 & C3  
Figure 4  
170-057688-012  
Notes:  
1. C2 Must Be Con-  
nected To 1st Stage  
Of Thermostat  
2. For Single Stage  
Operation Jumper  
C2 & C3  
Figure 5  
170-057688-013  
Notes:  
1. C2 Must Be Con-  
nected To 1st Stage  
Of Thermostat  
2. For Single Stage  
Operation Jumper  
C2 & C3  
3
 
WIRING DIAGRAMS  
Figure 6  
170-057688-014  
Notes:  
1. C2 Must Be Con-  
nected To 1st Stage  
Of Thermostat  
2. For Single Stage  
Operation Jumper  
C2 & C3  
Figure 7  
170-057688-015  
Notes:  
1. C2 Must Be Con-  
nected To 1st Stage  
Of Thermostat  
2. For Single Stage  
Operation Jumper  
C2 & C3  
Figure 8  
170-057688-016  
Notes:  
1. C2 Must Be Con-  
nected To 1st Stage  
Of Thermostat  
2. For Single Stage  
Operation Jumper  
C2 & C3  
4
 
WIRING DIAGRAMS  
Figure 9  
170-057688-017  
Notes:  
1. C2 Must Be Con-  
nected To 1st Stage  
Of Thermostat  
2. For Single Stage  
Operation Jumper  
C2 & C3  
Figure 10  
170-057688-018  
Notes:  
1. C2 Must Be Con-  
nected To 1st Stage  
Of Thermostat  
2. For Single Stage  
Operation Jumper  
C2 & C3  
Motor Lubrication  
Motors in VUH-C-30 through VUH-C-50 heaters have ball bearings which are factory lubricated for life.  
Note: All fan motors are totally enclosed and internally thermal overload protected.  
5
 
RENEWAL PARTS IDENTIFICATION  
MANUFACTURER PART NUMBER BREAKDOWN  
(LOCATED ON UNIT NAMEPLATE)  
V U  
H
– C –  
Controls  
Code  
Common Parts  
Diagram  
Item No.  
Diagram Wiring Wiring Diag.  
Description  
Part No.  
Part Number  
Description  
Item No. Dia. Fig.  
Part No.  
4
5
6
Fan  
112-510500-001  
134-130490-001  
300-024283-006  
Contactor-24V Coil (30A)  
30-00 Contactor-24V Coil (50A)  
Transformer  
072-303180-001  
072-303180-002  
315-304252-002  
3
3
7
170-057688-011  
170-057688-016  
Grille  
3 & 8  
4 & 9  
3 & 8  
Overheat Cutout  
Contactor-24V Coil (30A)  
31-00  
072-303180-001  
072-303180-002  
3
3
170-057688-012  
170-057688-017  
Main Line Fusing  
(Applicable On Units Over 48 Amps Only)  
Contactor-24V Coil (50A)  
Contactor-120V Coil (30A)  
32-00 Contactor-120V Coil (50A)  
Transformer  
072-303180-007  
072-303180-008  
315-304252-001  
3
3
7
170-057688-011  
170-057688-016  
Fuse Type  
Used On  
Part No.  
JKS -60  
JKS -50  
JKS -40  
30-83, 40-23 128-026510-007 (6)  
30-23  
50-43  
128-026510-006 (6)  
128-026510-004 (6)  
Contactor-120V Coil (30A)  
32-45 Contactor-120V Coil (50A)  
Transformer  
072-303180-007  
072-303180-008  
315-304252-001  
3
3
7
170-057688-014  
170-057688-018  
6 & 10  
Optional Transformer Fusing  
Fuse Type  
Contactor-120V Coil (30A)  
33-00  
072-303180-007  
072-303180-008  
3
3
170-057688-012  
170-057688-017  
4 & 9  
Part No.  
Contactor-120V Coil (50A)  
KTK-3  
128-047763-007 (2)  
Contactor-208V/240V Coil (30A)  
34-00  
072-303180-003  
072-303180-014  
3
3
5
7
170-057688-013  
170-057688-015  
Contactor-208V/240V Coil (50A)  
Motor Fusing  
Fuse Type  
KTK-4  
Contactor-208V/240V Coil (30A)  
34-45  
072-303180-003  
072-303180-014  
3
3
Part No.  
Contactor-208V/240V Coil (50A)  
128-047763-008 (2)  
Note: Number in parentheses ( ) indicates  
quantity required of that part.  
Elements and Motor  
Element  
Part No.  
(Item No. 1)  
Motor  
Part No.  
(Item No. 2)  
Code kW Volts Phase  
30-83  
208  
240  
480  
118-130486-009 (6)  
118-130486-001 (6)  
118-130486-002 (6)  
118-130486-009 (6)  
118-130486-005 (6)  
118-130486-008 (6)  
Fusing  
30-23 30  
30-43  
Fan Motor ƒ  
3
193-057646-001  
40-23 38.5 240  
40-43 39  
50-43 50  
480  
480  
Grille †  
Contactor  
Heating Element ‚  
Overheat Cutout  
Transformer  
Fan Blade  
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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