Reznor VR Unit Installation Manual - Manual (Page 3)

Form I-VR, P/N 205202 R13, 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.
Definitions of Hazard
Levels in this Manual
1. General Installation should be done by a qualified 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 flame.
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 definitions 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. Configurations, Dimensions, and
Clearances .......................................6-8
4.1 Configuration 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-fired appliances are not designed for use in hazardous atmospheres
containing flammable vapors or combustible dust, in atmospheres containing
chlorinated or halogenated hydrocarbons, or in applications with airborne silicone
substances. See Hazard Levels, Page 2.