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.
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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
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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
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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
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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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