Chromalox HVH-02-71, HVH-04-81, HVH-10-23 Installation, Operation And Maintanance
© 2010 Chromalox®, Inc.
Specifications — Table A
Model
Electrical Data (60 Hz) Dimensions (In.)
Standard Wiring
Contactor Diagram
Volts Watts Phase Amps BTU Height Width Depth Rating (Qty.) Figure
* 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.
Chromalox
®
DIVISION 4 SECTION
HVH
SALES
REFERENCE
DATE
SERVICE REFERENCE
PF203-4
161-305679-001
OCTOBER, 2008
(Supersedes PF203-3)
Installation, Operation
and
MAINTENANCE
Type HVH Horizontal/Vertical Unit Heater
AB C
HVH-02-81 208 2,667 1 12.8
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
HVH-04-81†
208 4,000
1 19.2 —— 10
HVH-04-83† 3 11.2 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† 3 9.6* 30A (1) 12
HVH-04-71 277 4,000 1 14.5 —— 10
HVH-04-43 480 4,000 3 4.8 30A (1) 11
HVH-05-81†
208 5,000
1 24.0 —— 10
HVH-05-83† 3 13.8 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† 3 12.1* 30A (1) 12
HVH-05-71 277 5,000 1 18.2 —— 10
HVH-05-43 480 5,000 3 6.0 30A (1) 13
HVH-07-81†
208 7,500
1 36.1 50A (1)
HVH-07-83 3 20.9 30A (1)
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 3 18.1* 30A (1)
HVH-07-71 277 7,500 1 27.2 30A (1)
HVH-07-43 480 7,500 3 9.0 30A (1) 13
HVH-10-81†
208 10,000
1 48.0 50A (1)
HVH-10-83 3 27.8 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)
HVH-10-23 3 24.0* 30A (1)
HVH-10-43 480 10,000 3 12.0 30A (1) 13
HVH-12-83 208 12,500 3 34.8 50A (1)
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 30A (1) 13
HVH-15-83 208 15,000 3 41.8 50A (1)
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 30A (1) 13
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) and 13” (HVH-07 to HVH-15).
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.
(Refer to Table D for wall and ceiling clearances, and
Figure 2 for mounting spacing specifications.)
WARNING
GENERAL
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-A-EP (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.
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.
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.
Table B – Weights of Heater & Bracket
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
building exposed to a prevailing wind.
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.
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.
Figure 2 - Wall and Ceiling Clearance
WEIGHT (Lbs.) Heater and Brackets
Model Ceiling Wall
Weight Weight Ft.-Lbs.
HVH-02 to HVH-O5 27 25-1/2 48
HVH-07 to HVH-15 55 67-1/4 112
2
Exposed
Exposed
Exposed
Exposed
Exposed
Exposed
Figure 1 - Single and Multi Unit Mounting
INSTALLATION
Horizontal Air Flow
1. Height above floor
A. In areas where ceiling height is more that 12 feet, recom-
mended mounting height is approximately 10 feet to underside of heater.
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 73/4”. (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 (by others). Attach the
ceiling mounting bracket on the heater to the wall mounting bracket using the 5/8" bolt provided.
XX
L2
L1
CL
CL
3/8-18 THREADED
MOUNTING HOLES
TERMINAL BOX
ACCESS DOOR
Back Wall
Side Wall
Figure 3 - Rod Spacing
Mounting Limitations (In.)
Model Back Side Top to
to Wall to Wall Ceiling
HVH-02
Thru 10-1/4 6 6
HVH-05
HVH-07
Thru 13 6 6
HVH-15
Table D — Clearance Requirements (Vertical Discharge)
Rod
Dimensions – (In.)
Unit Thread Type L
1
L
2
X
2-5 kW 3/8 - 16 2-7/8 7-1/8 3-3/4
7-1/2 - 15 kW 3/8 - 16 4-5/16 9-3/8 5-1/2
Table C — Rod Thread Type and Spacing Dimensions (inches) for
Vertical Discharge.
KO FOR CONTROL WIRING
KO FOR POWER WIRING
TERMINAL BOX
ACCESS DOOR
Figure 4 - Heater Back View
Knockout Sizes
HVH-02 - 05 1/2” 3/4” (1)
HVH-07 - 15 1/2” 1” (1)
3
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