Chromalox HVH-04-83, HVH-02-21, HVH-04-21, HVH-04-23, HVH-04-71 Installation, Operation And Maintenance Manual
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Chromalox
®
SERVICE REFERENCE
Installation, Operation
and
MAINTENANCE
DIVISION 4 SECTION HVH
SALES
REFERENCE
(Supersedes PF203-5)
161-305679-001
JANUARY, 2012
DATE
PF203-6
Type HVH Horizontal/Vertical Unit Heater
GENERAL
Heater Location Instructions:
Arrange units so their discharge air streams:
A. Are subjected to a minimum of interference from columns,
machinery and partitions.
B. Wipe exposed walls without blowing directly at them.
C. Are directed away from room occupants in comfort heating.
D. Are directed along the windward side when installed in a build-
ing exposed to a prevailing wind.
E. See additional mounting limitations in Table D.
Locate thermostat on interior partition walls or posts away from
cold drafts, internal heat sources and away from heater discharge air
streams.
Small rooms can be heated by one unit heater. Where two walls
are exposed, the heater should be mounted as shown in Figure 1.
WARNING
Failure to understand and follow these installation instructions and
the “WARNING” notes therein may result in serious personal injury
from electrical shock, or from the heater falling due to faulty installation.
This heater is not intended for use in hazardous atmospheres where flammable vapors, gases, liquids or other
combustible atmospheres are present as defined in the
National Electric Code. Failure to comply can result in
explosion or fire. For these applications see PDS CXH-AEP (PF490).
ELECTRIC SHOCK HAZARD. Disconnect all power before
installing or servicing heater. Failure to do so could result in personal injury or property damage. Heater must
be installed or serviced by a qualified person in accordance with the National Electrical Code, NFPA 70.
Large rooms require multi-unit installation. Number and capacity
of units will be determined by volume of building and square feet of
floor area to be heated. Arrange units to provide perimeter air circulation where each unit supports the air stream from another.
Exposed
Exposed
Exposed
Figure 1 - Single and Multi Unit Mounting
This heater is not intended for use in exposed outdoor,
marine, or wash-down environments or in areas where
corrosive liquids or fumes exist under normal conditions.
ELECTRIC SHOCK HAZARD. Any installation involving
electric heaters must be performed by a qualified person
and must be effectivley grounded in accordance with the
National Electrical Code to eliminate shock hazard.
Do not mount mercury type thermostat directly on unit. Vibration
could cause heater to malfunction.
The heater must be mounted at least 7’ above the floor to prevent
accidental contact with the heating elements or fan blade which could
cause injury.
Keep at least 5’ clearance in front of the heater. Refer to Table D
for side, top and back clearance requirements.
Exposed
Exposed
Exposed
© 2012 Chromalox®, Inc.
WARNING (cont’d.)
The ceiling mounting structure and the anchoring provisions must
be of sufficient strength to support the combined weight of the heater
and mounting bracket. (Refer to Table B for weights of heater and
bracket.)
The wall or mounting surface, and the anchoring provisions
must be capable of supporting the combined weight of the heater and
mounting brackets cantilevered from the mounting surface. (Refer to
Table B for weights of heater and brackets and for cantilevered force
expressed in foot-pounds.)
Fan blade rotation must be checked. If airflow is not moving out
through the louvers, interchange any two of the three customer power
leads on three-phase units only.
Specifications – Table A
Model Volts Watts Phase Amps BTU
HVH-02-81 208 2,667 1 12.8 8,850 16-1/8 13 10 —— 10
HVH-02-21 208/240 2000/2,667 1 11.1* 8,850 16-1/8 13 10 —— 10
HVH-02-71 277 2,667 1 9.6 8,850 16-1/8 13 10 —— 10
HVH-04-81† 208 4,000 1 19.2 13,661 16-1/8 13 10 —— 10
HVH-04-83† 208 4,000 3 11.2 13,661 16-1/8 13 10 30A (1) 12
HVH-04-21† 208/240 3,000/4,000 1 16.7* 13,661 16-1/8 13 10 —— 10
HVH-04-23† 208/240 3,000/4,000 3 9.6* 13,661 16-1/8 13 10 30A (1) 12
HVH-04-71 277 4,000 1 14.5 13,661 16-1/8 13 10 —— 10
HVH-04-43 480 4,000 3 4.8 13,661 16-1/8 13 10 30A (1) 11
HVH-05-81† 208 5,000 1 24.0 17,076 16-1/8 13 10 —— 10
HVH-05-83† 208 5,000 3 13.8 17,076 16-1/8 13 10 30A (1) 12
HVH-05-21† 208/240 3,750/5,000 1 20.8* 17,076 16-1/8 13 10 —— 10
HVH-05-23† 208/240 3,750/5,000 3 12.1* 17,076 16-1/8 13 10 30A (1) 12
HVH-05-71 277 5,000 1 18.2 17,076 16-1/8 13 10 —— 10
HVH-05-43 480 5,000 3 6.0 17,076 16-1/8 13 10 30A (1) 13
HVH-07-81† 208 7,500 1 36.1 25,598 20-5/8 17-1/8 12-3/4 50A (1) 12
HVH-07-83 208 7,500 3 20.9 25,598 20-5/8 17-1/8 12-3/4 30A (1) 12
HVH-07-21† 208/240 5,625/7,500 1 31.1* 25,598 20-5/8 17-1/8 12-3/4 30A (1) 12
HVH-07-23 208/240 5,625/7,500 3 18.1* 25,598 20-5/8 17-1/8 12-3/4 30A (1) 12
HVH-07-71 277 7,500 1 27.2 25,598 20-5/8 17-1/8 12-3/4 30A (1) 12
HVH-07-43 480 7,500 3 9.0 25,598 20-5/8 17-1/8 12-3/4 30A (1) 13
HVH-10-81† 208 10,000 1 48.0 34,130 20-5/8 17-1/8 12-3/4 50A (1) 12
HVH-10-83 208 10,000 3 27.8 34,130 20-5/8 17-1/8 12-3/4 30A (1) 12
HVH-10-21† 208/240 7,500/10,000 1 41.7* 34,130 20-5/8 17-1/8 12-3/4 30A (1) 12
HVH-10-23 208/240 7,500/10,000 3 24.0* 34,130 20-5/8 17-1/8 12-3/4 30A (1) 12
HVH-10-43 480 10,000 3 12.0 34,130 20-5/8 17-1/8 12-3/4 30A (1) 13
HVH-12-83 208 12,500 3 34.8 42,663 20-5/8 17-1/8 12-3/4 50A (1) 12
HVH-12-23 208/240 9,375/12,500 3 30.1* 42,663 20-5/8 17-1/8 12-3/4 50A (1) 12
HVH-12-43 480 12,500 3 15.1 42,663 20-5/8 17-1/8 12-3/4 30A (1) 13
HVH-15-83 208 15,000 3 41.8 51,195 20-5/8 17-1/8 12-3/4 50A (1) 12
HVH-15-23 208/240 11,250/13,000 3 36.2* 51,195 20-5/8 17-1/8 12-3/4 50A (1) 12
HVH-15-43 480 15,000 3 18.1 51,195 20-5/8 17-1/8 12-3/4 30A (1) 13
HVH-20-23 208/240 14,758/19,500 3 47.0 66,534 20-5/8 17-1/8 14-1/16 50A (2) 15
HVH-20-43 480 19,500 3 23.5 66,534 20-5/8 17-1/8 14-1/16 50A (1) 14
HVH-20-63 600 19,500 3 18.8 66,534 20-5/8 17-1/8 14-1/16
HVH-25-23 208/240 18,720/24,900 3 60.0 84,959 29-3/16 26-1/16 14-5/8 50A (2) 15
HVH-25-43 480 25,000 3 30.2 85,300 29-3/16 26-1/16 14-5/8 50A (1) 14
HVH-25-63 600 25,000 3 24.1 85,300 29-3/16 26-1/16 14-5/8 50A (1) 14
HVH-30-23 208/240 22,400/29,900 3 72.1 102,019 29-3/16 26-1/16 14-5/8 50A (2) 15
HVH-30-43 480 30,000 3 36.2 102,360 29-3/16 26-1/16 14-5/8 50A (1) 14
HVH-30-63 600 30,000 3 29 102,360 29-3/16 26-1/16 14-5/8 50A (1) 14
HVH-35-23 208/240 25,600/34,000 3 81.9 116,008 29-3/16 26-1/16 14-5/8 50A (3) 15
HVH-35-43 480 34,000 3 41 116,008 29-3/16 26-1/16 14-5/8 50A (1) 14
HVH-35-63 600 34,200 3 33 116,690 29-3/16 26-1/16 14-5/8 50A (1) 14
HVH-40-23 208/240 28,000/37,400 3 90.1 127,609 29-3/16 26-1/16 14-5/8 50A (3) 16
HVH-40-43 480 37,400 3 45.1 127,609 29-3/16 26-1/16 14-5/8 50A (1) 14
HVH-40-63 600 37,500 3 36.2 127,950 29-3/16 26-1/16 14-5/8 50A (1) 14
HVH-45-23 208/240 33,700/44,800 3 107.9 152,858 29-3/16 26-1/16 14-5/8 50A (3) 16
HVH-45-43 480 44,800 3 54 152,858 29-3/16 26-1/16 14-5/8 50A (2) 15
HVH-45-63 600 45,200 3 43.6 154,222 29-3/16 26-1/16 14-5/8 50A (1) 14
HVH-50-23 208/240 38,400/50,000 3 123.1 174,353 29-3/16 26-1/16 14-5/8 50A (3) 16
HVH-50-43 480 50,000 3 61.6 174,353 29-3/16 26-1/16 14-5/8 50A (2) 15
HVH-50-63 600 50,000 3 49.5 175,036 29-3/16 26-1/16 14-5/8 50A (2) 15
* Note: 208V amperage is 86% of 240V value.
† These models can be field changed from single phase to three phase or three phase to single phase.
Table B – Weights of Heater & Bracket
WEIGHT (Lbs.) Heater and Brackets
Ceiling
Model
Weight
Weight Ft.-Lbs.
HVH-02 to HVH-05 27 25-1/2 48
HVH-15 to HVH-20 55 67-1/4 112
HVH-25, 30, 35 108 105 126.3
HVH-40, 45, 50 118 115 138.4
A
Height
2
B
Width
C
Depth
Std. Contactor
Rating (Qty.)
50A (1) 14
Wall
Wiring
Dia. Figure
INSTALLATION
NOTICE – These heaters are designed for wall and ceiling mount.
Other modes of mounting void factory warranty.
Vertical Air Flow
1. Height above floor
A. It is recommended that the heater only be used with ceiling
heights of 12 feet or greater. Minimum spacing to ceiling is 6
inches, use 3/8-18” thread stock (supplied by others) as shown
in Figure 3.
B. Mimimum mounting height is 10 feet from floor to bottom of
heater.
2. Spacing to walls.
A. Side of case to wall 6”. Top or bottom of case to back wall is
10-1/4” (HVH-02 to HVH-05), 13” (HVH-15 to HVH-20) and
15-1/2” (HVH-25 to HVH-50).
CEILING (Vertical Airflow):
A. The heater can be rod mounted to the ceiling by installing four
(4) threaded mounting rods in the threaded holes located on the
top of the heater as shown in Figure 3. (Refer to Table C for
mounting rod thread size.)
B. Securely attach the four (4) mounting rods to the ceiling. (Re-
fer to Table D for wall and ceiling clearances, and Figure 2 for
mounting spacing specifications.)
ADDITIONAL THREADED
3/8-18 THREADED
MOUNTING HOLES
MOUNTING HOLES FOR
HVH-25 TO HVH-50
Figure 2 - Wall and Ceiling Clearance
XX
L2
CL
CL
TERMINAL BOX
ACCESS DOOR
Back Wall
Figure 3 - Rod Spacing
Table C — Rod Thread Type and Spacing Dimensions (inches) for
Vertical Discharge.
Rod
Unit
Thread Type
L1 L2 X
2-5 kW 3/8-16 2-7/8 7-1/8 3-3/4
7-1/2 - 20 kW 3/8-16 4-5/16 9-3/8 5-1/2
25 - 50 kW 3/8-16 8-15/16 14 9-15/16
Table D — Clearance Requirements (Vertical Discharge)
Mounting Limitations (In.)
Model
Back to Wall Side to Wall Top to Ceiling
HVH-02 Thru HVH-05 10-1/4 6 6
HVH-07 Thru HVH-20 13 6 6
HVH-25 Thru HVH-50 15-1/2 6 6
Horizontal Air Flow
1. Height above floor
A.
In areas where ceiling height is more that 12 feet, recommended
mounting height is approximately 10 feet to underside of heater.
Side Wall
L1
Dimensions – (In.)
TERMINAL BOX
ACCESS DOOR
Figure 4 - Heater Back View
KO FOR POWER WIRING
KO FOR CONTROL WIRING
Knockout Sizes
HVH-02 - 05 1/2” 3/4” (1)
HVH-07 - 20 1/2” 1” (1)
HVH-25 - 50 1-1/4” 2” (1)
B. For ceiling heights of 12 feet or less, maximum mounting
height is detemined by the use of the mounting bracket offered
for these heaters. Minimum spacing to ceiling is 7-3/4”. (See
Figure 5)
C. In either case, the mimimum mounting height is 7 feet from
floor to bottom of heater.
2. Spacing to adjacent walls.
A. Rear of case to back wall 2” minimum.
B. Side of case to side wall 6” minimum.
CEILING – Horizontal Airflow (See Figure 5):
The ceiling mounting bracket is fastened to the top of the heater using
the four (4) bolts supplied with the mounting bracket. The bracket is
then mounted to the ceiling using a 5/8” bolt (by others).
WALL – Horizontal Airflow (See Figure 6):
Wall mounting necessitates the use of both an adaptor mounting
bracket and a wall mounting bracket. First, attach the ceiling mounting
bracket to the heater. Then, attach the wall mounting bracket to the
wall using four 5/16” bolts and six 3/8” bolts (by others). Attach the
ceiling mounting bracket on the heater to the wall mounting bracket
using the 5/8” bolt provided.
3
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