Nortek Reznor VRA-4E Series, Installation, Commissioning, Servicing

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1712VRA ‐ 4EGBEN, pag.. 2/25
TABLE OF CONTENTS
1.0 INTRODUCTION p 3
1.1 Basic Information
1.2 Warranty
2.0 TECHNICAL DATA p 4
2.1 Specifications
2.2 Dimensions
3.0 GENERAL REQUIREMENTS p 5
3.1 Related Documents
3.2 Heater Location
3.3 Combustion Air Inlet Pipe and Flue Pipe
3.4 Air Supply
3.5 Air Distribution System
3.6 Electrical Supply
3.7 Gas Supply
4.0 INSTALLATION p 9
4.1 Uncrating and Preparation
4.2 Suspending the Heater
4.3 Fitting the Combustion Air Inlet/Flue Pipe
System
4.4 Gas Connection
4.5 Electrical Connections
4.6 Room Thermostat Siting
5.0 AIR DISTRIBUTION p 10
6.0 COMMISSIONING AND TESTING
p 11
6.1 Electrical Check
6.2 Gas Connection
6.3 Suspension and Support
6.4 Lighting the Heater
6.5 Heater pipe work
6.6 Adjustments
6.7 Air Distribution System
6.8 Heater Controls
6.9 Handing Over
7.0 SERVICING INSTRUCTIONS p 14
8.0 REMOVAL AND REPLACEMENT OF PARTS p 15
8.1 Main Burner Removal
8.2 Main Burner Injectors
8.3 Ignition System
8.4 Operating Gas Valve
8.5 Limit Controls
8.6 Combustion Air Pressure Switch
8.7 Combustion Air Fan
9.0 FAULT FINDING p 17
10.0 PARTS LIST p 20
11.0 GAS CONVERSION p 20
12.0 USERS INSTRUCTIONS
p 21
13.0 HEALTH & SAFETY STATEMENT
p 22
HAZARD INTENSITY LEVELS
DANGER
Failure to comply will result in severe personal injury or death and/or
property damage.
WARNING
Failure to comply could result in severe personal injury or death and/or
property damage.
CAUTION
Failure to comply could result in minor personal injury and/or property
damage.
WARNINGS

For your safety, 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
 Evacuate all personnel & contact your gas supplier immediately

Do not store or use petrol or other flammable vapours and liquids in the vicinity of the
appliance.

Improper installation, adjustment, alteration, service or maintenance can cause property
damage, injury or death. Read the installation, operation and maintenance instructions
thoroughly before installing or servicing this equipment.

Do not use this appliance if any part has been immersed in water. Immediately call a
qualified service technician to inspect the appliance and replace any gas control that
has been immersed in water.