Reznor VR Series Owner's manual

Form I-VR (10-14), P/N 205202 R14, Page 1
Applies to: Model VR (std 60 Hz or
optional 50 Hz) and
Model GVR (std 50 Hz)
Gas-Fired, Tubular, Radiant,
Low-Intensity Infrared Heater

INSTALLATION / OPERATION / MAINTENANCE
Model VR Burner/Control Box
with 20 - 70 ft Tube/Reector Length
Form I-VR (10-14)
Obsoletes Form I-VR (Version F)
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CQS
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!
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in serious injury, death, or
property damage.
Be sure to read and understand the installation, operation, and service instructions in
this manual.
Improper installation, adjustment, alteration, service, or maintenance can cause
serious injury, death, or property damage.
— Do not store or use gasoline or other ammable vapors and liquids in the vicinity
of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a phone remote from the building. Follow
the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the re department.
— Installation and service must be performed by a qualied installer, service agency,
or the gas supplier.

Form I-VR (10-14), P/N 205202 R14, Page 2
HAZARD INTENSITY LEVELS
1. DANGER: Failure to comply will result in severe personal injury or
death and/or property damage.
2. WARNING: Failure to comply could result in severe personal injury
or death and/or property damage.
3. CAUTION: Failure to comply could result in minor personal injury
and/or property damage.
WARNING: These tubular radiant heaters DO NOT qualify for explosion-proof
installations.
Denitions of Hazard
Levels in this Manual
1. General Installation should be done by a qualied agency in accordance with the
instructions in this manual and in compliance with all codes and requirements
of authorities having jurisdiction.
1.1 Cautions and
Warnings
WARNING: The installing contractor must be certain that the area where the heater
is being installed does not contain corrosive or toxic fumes or that elements in the
atmosphere do not produce corrosive or toxic fumes in the presence of an open ame.
The chlorine atmosphere in enclosed swimming pool areas may cause burner and tube
corrosion if the area is not ventilated. ASHRAE design guides suggest a minimum of
5-6 air changes per hour. The manufacturer recommends outside combustion air. To
provide outside combustion air, Option DE2, Combustion Air Inlet Kit, must be used.
There are warning labels on the unit and throughout this manual. For your
safety, read the denitions below and comply with all boxes labeled CAUTION,
WARNING, and DANGER during installation, operation, maintenance and ser-
vice of this heater.
Table of Contents 1. General .............................................2-3
1.1 Cautions and Warnings ................ 2
1.2 Warranty ...................................... 3
1.3 Installation Codes ........................ 3
2. Location ...........................................3-5
3. Uncrating/Packaging.......................5-6
4. Congurations, Dimensions, and
Clearances.......................................6-8
4.1 Conguration Requirements ........ 6
4.2 Dimensions .................................. 7
4.3 Clearances to Combustibles ........ 8
5. Suspension Requirements ................8
6. Mechanical .....................................9-31
6.1 Prepare the Burner/Control Box . . 9
6.2 Assemble & Suspend Heater ......11
6.3 Gas Piping and Pressures ......... 20
6.4 Venting and Combustion Air ....... 24
7. Electrical and Wiring ..................31-32
7.1 Wiring Diagram ......................... 32
7.2 Control Thermostat .................... 32
8. Check Installation & Start-Up .....33-34
9. Maintenance.................................35-39
9.1 Maintenance Requirements ....... 35
9.2 Maintenance Procedures ........... 35
10. Service........................................39-44
10.1 Control Location, Operation,
and Service .............................. 39
10.2 Troubleshooting ....................... 42
Addendum .......................................45-46
Instructions for Attaching Double-
Wall Vent Pipe (Type-B) ............. 45
Technical Information ....................... 46
Index ......................................................47
INSTALLER MUST COMPLETE ...........48
WARNING: Gas-red appliances are not designed for use in hazardous atmospheres
containing ammable vapors or combustible dust, in atmospheres containing
chlorinated or halogenated hydrocarbons, or in applications with airborne silicone
substances. See Hazard Levels, Page 2.

Form I-VR (10-14), P/N 205202 R14, Page 3
1.3 Installation
Codes
These units must be installed in accordance with local building codes. In the
absence of local codes, in the United States, the unit must be installed in
accordance with the National Fuel Gas Code NFPA54/ANSI Z223.1 (latest edi-
tion). A Canadian installation must be in accordance with the Natural Gas and
Propane Installation Code CAN/CSA B149.1 (latest edition). These codes are
available from CSA Information Services, 1-800-463-6727. Local authorities
having jurisdiction should be consulted before installation is made to verify
local codes and installation procedure requirements.
All electrical wiring must be in accordance with the National Electric Code
NFPA NO. 70 (latest edition) or, in Canada, the Canadian Electrical Code, part
I-CSA C22.1.
The installing contractor must be familiar with all of the various requirements
and is responsible for installing this heater in compliance with the applicable
codes.
Special Installations --
Aircraft Hangars: In the United States, the heaters must be installed in accor-
dance with NFPA 409 (latest edition). NFPA Publications are available from the
National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169.
In Canada, installation in an aircraft hangar must comply with CAN/CSA-
B149.1. Both NFPA 409 and the CAN/CSA-B149.1 specify that the heater shall
not be located in an area of an aircraft hangar where it may be subjected to
physical damage by aircraft, cranes, moveable scaffolding, or other objects.
NFPA 409 species a clearance of 10 feet (3M) to the bottom of the heater from
the highest surface of the wings or engine enclosures of the highest aircraft
which may be housed in the hangar. NFPA 409 and CAN/CSA B149.1 specify
a minimum clearance of eight feet (2.4M) from the oor to the heater in other
sections, such as ofces, or shops, that communicate with the aircraft hangar.
Parking Structures: In the United States, heaters installed in parking struc-
tures must be in accordance with NFPA 88A (latest edition).
WARNING: Minimum clearance marked on the heater must
be maintained from vehicles parked under the heater.
California
Warning Label
If the heater is being installed in the state of California, the installer MUST
attach a warning label on the outside of the unit. The California Warning Label
is shipped in the owner’s envelope along with this manual, the warranty form,
and any other paperwork that applies.
If installation is in California, select a location on the rear of the burner box. Be
sure the surface is clean and dry and adhere the label.
Massachusetts
Requirement
1.2 Warranty Refer to limited warranty information on the warranty sheet in the “Owner’s
Envelope”.
Warranty is void if ....
a. Wiring is not in accordance with the diagram furnished with the heater.
b. The unit is installed without proper clearance to combustible materials.
If the heater is being installed in the Commonwealth of Massachusetts, this unit
must be installed by a licensed plumber or licensed gas tter.
2. Location When selecting the installation location, major factors to consider are (1)
Personal and Property Safety, (2) Personal Comfort, and (3) Heating
Efciency
(1) Safety - The location must meet the Installation Codes listed in Paragraph 1
and any local codes. These heaters are approved for indoor commercial/indus-

Form I-VR (10-14), P/N 205202 R14, Page 4
trial installations only. Do not install these tubular radiant heaters in areas that
contain corrosive or toxic fumes or where elements in the atmosphere could
produce corrosive or toxic fumes in the presence of an open ame. These
heaters do not qualify for explosion-proof installations.
Clearance to combustibles must be observed (See Paragraph 5), including
clearances to stock that might be periodically stacked underneath the heater.
The supporting structure must have a load-carrying capacity of at least 200 lbs
(91 kg).
Do not locate the heater above or too close to electric lines, gas pipes, emer-
gency sprinkler systems, or any such structures that could be adversely affected
by radiant or convection heat.
Do not locate the heater where it could be damaged by high lifts, cranes, or any
other such equipment.
Since chain suspension is required to allow for expansion and contraction
of the tubes, proper positioning near large door openings is important. If the
heater is being installed near a large door (ex: garage, loading dock, aircraft
hangar, etc.), position the heater so that it will not “swing” in the wind. Lateral
movement of the tubular system should be limited.
(2) Comfort - Because of the unique heat transfer features of an infrared heater,
the comfort quality of the heat is greatly affected by the location of the heater.
Rays of heat are emitted from the surface of the tubes and directed by the
reectors. When radiant heat rays reach a surface, those rays are absorbed,
raising the temperature of that “object”. Since infrared heat does not heat the
air, a comfort advantage is that stratication does not occur. When the rays are
not obstructed from reaching the oor, the oor and lower level areas main-
tain a more comfortable temperature than with convection (warm air) heating
equipment.
For optimum comfort when infrared heaters are being used to “heat” personnel
(spot heating), it is recommended that (1) the rays of heat be directed toward
the person(s) from an angle rather than from directly overhead, and (2) the
heater(s) be arranged so that rays are directed against at least two sides (or
front and back) of the person(s). If the heater must be hung directly overhead,
a higher mounting height will increase the comfort level because the greater
distance will decrease the intensity level of the rays. Another signicant fac-
tor when locating the heater in relation to people is that the heat emitted
from the burner/combustion chamber end of the tubular infrared heater
is more intense than the heat emitted from the exhaust end. For this rea-
son, a U-tube conguration is often best suited for overhead spot heating
applications.
Tubular radiant heaters are engineered to provide comfort-level personal spot
and space heating, but each application should be designed individually to
determine the best, quality-comfort locations.
(3) Efciency - Because of the unique features of radiant heat transfer, select-
ing the most efcient location for infrared equipment depends on the “oor”
coverage of the emitted heat rays. Floor coverage distance can be gured as
approximately two times the mounting height of the unit. However, comfort
level heating depends on the infrared intensity, and intensity levels decrease
with higher mounting heights and greater oor coverage.
For space heating infrared applications, the location of the units must be evalu-
ated as part of the heater size selection. Determine the total BTU’s required,
the oor coverage required, and the mounting height. From this information
design a heater size and location plan that will provide the most complete oor
coverage without excessive overlapping. In most cases, perimeter heaters
2. Location
(cont’d)

Form I-VR (10-14), P/N 205202 R14, Page 5
Mounting Height
Table
3. Uncrating/
Packaging
Check for shipping damage. If any damage is found, document the damage
with the shipping agency and immediately contact your Distributor. If you are
an authorized Distributor, follow the FOB freight policy procedures provided.
Because of their modular design, these heaters are packaged in sections and
require eld assembly. The burner/control box is in one carton, and the tubes
are packaged in one, two, or three cartons depending on the length of the sys-
tem. Each shipped-separate option has its own carton. Be sure all parts are at
the site before beginning installation.
Burner/Control Box Carton - For the convenience of both the stocking and
the non-stocking distributor, Model VR burner/control boxes have two differ-
ent packaging schemes. Read carefully to determine whether or not the
burner/control box requires eld conversion before being installed. Model
GVR burner/control box is available in specic sizes only.
(1) Burner/Control Box with Conversion Package - Model VR, 60 Hz only
(2) Burner/Control Box Factory Built to a Specic Size (Models VR & GVR)
Recommended Minimum Mounting Height
Reector
Position
Models VR/GVR, Size (000 BTUH Input)
50 75 100 125 150 175 200
feet Mfeet Mfeet Mfeet Mfeet Mfeet Mfeet M
Horizontal 11 3.4 12 3.7 13 4.0 15 4.6 16 4.9 17 5.2 18 5.5
30° Angle 92.7 10 3.0 11 3.4 13 4.0 14 4.3 15 4.6 16 4.9
45° Angle 82.4 92.7 10 3.0 11 3.4 13 4.0 14 4.3 15 4.6
Package Contents
VR 50 Factory-assembled Size 50,000 BTUH heater
VR 75/100 Factory-assembled Size 75,000 BTUH heater
Conversion kit to change to a Size 100,000 BTUH heater
VR 125/150 Factory-assembled Size 125,000 BTUH heater
Conversion kit to change to a Size 150,000 BTUH heater
VR175/200 Factory-assembled Size 175,000 BTUH heater
Conversion kit to change to a Size 200,000 BTUH heater
- If the burner/control box carton does not have a label about eld conver-
sion, the carton contains a burner/control box factory-built to a specic size.
Check the rating plate to verify size and type of gas.
Tube Cartons (Models VR & GVR) - Tubes are also packaged so that a mini-
mum number of cartons will cover all lengths of heater systems. This package
identication system applies to all heaters, whether shipped from distributor
stock or shipped to order from the factory. Before beginning installation, verify
that the packages at the job site match the length of heater being installed.
Reectors, wire reector retainers, hanger bars, tube brackets, compression
couplings, and hardware bags with required reector and tube hardware are
included in each carton.
(NOTE: Chain for hanging is not included. Use either an optional hanger kit (Option
should be located parallel to the wall. The distance from the wall is determined
by whether the reectors will be angled or horizontal.
For spot heating applications, the tubular system should be located to direct
the rays toward the area requiring heat. Depending on the installation, this
can be done from directly overhead or reector angled from the side. U-tube
congurations are often best suited for overhead spot heating applications.
Refer to the recommended minimum mounting heights below. Use the mount-
ing height, the size of the heater, the heater conguration, and the application
conditions to determine the most efcient location of the heater.