Honeywell VR8204 - Manual

This Installation Manual covers Honeywell’s VR8104, VR8204, and VR8304 intermittent pilot combination gas controls, focusing on their application in gas-fired appliances. The guide emphasizes safety–including fire/explosion hazards–and provides detailed installation procedures for flanges, piping, and pressure regulators, including torque specifications, O-ring requirements, and compliance with local codes. It also includes technical specifications such as valve capacities, ambient temperature ranges, and electrical ratings to ensure proper system integration.

Page 1 – Gas Control Installation and Capacity Conversion
Page 2 – Technical Specifications and Model Designations
Page 3 – Installation Specifications and Hazard Warnings
Page 4 – Safety Precautions and Gas Conversion Procedures
Page 5 – Adapter Installation and Piping Layout
Page 6 – Control Assembly and Pipe Connection Guidance
Page 7 – Wiring and Component Installation
Page 8 – Operation, Maintenance, and Pilot Adjustment
Page 9 – Gas Input and Burner Ignition Adjustment
Page 10 – Flow Rate Regulation and Safety Shutdown
Page 11 – System Specifications and Service Procedures
Page 12 – Homeowner Safety and Shutdown Guidance

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® U.S. Registered Trademark
Copyright © 2000 Honeywell Inc. • All Rights Reserved

INSTALLATION INSTRUCTIONS

69- 1225- 4

VR8104, VR8204, and VR8304

Intermittent Pilot Combination

Gas Controls

APPLICATION

These intermittent pilot gas controls are used in gas-fired
appliances with up to 415 ft3/hr capacity at 1 in. wc
pressure drop (8.5 m3/hr at 0.25 kPa) on natural gas.
They include safety shutoff, a manual valve, two
automatic operators, a pressure regulator and a pilot
adjustment.

These gas controls are available in a range of valve
capacities, see Table 1. (Table 2 provides gas capacity
conversion factors.) The suffix letter indicates
temperature range and regulator type, see Table 3.

For CE-approved models, the relevant sections of these
instructions and Table 4 are applicable.

Table 1. Valve Capacity

Capacity based on 1000 Btu/ft

, 0.64 sp gr natural gas at 1 in. wc pressure drop (37.3 MJ/m

, 0.64 sp gr natural gas

at 0.25 kPa pressure drop).

Capacity is reduced by 5 percent when using an outlet screen.

Valves are guaranteed at only 77 percent of the rating.

Minimum regulation for LP gas is 15,000 Btuh.

Minimum regulation for LP gas is 40,000 Btuh.

Minimum regulation for LP gas is 50,000 Btuh.

Table 2. Gas Capacity Conversion Factor.

CE-Only Models

These gas controls are used in appliances up to 121kW
or 415 kBTUH on natural gas and approved on EN126,
which consists of one automatic safety shutoff valve,
Class B or C, one servo-operated shutoff valve, Class D,
pressure governor, Class C, manually-operated valve,
with or without pilot outlet. Only the A, H and U models
are available CE-approved.

Table 4 shows the additional specifications for the
CE-only models.

Model

Size

Inlet-Outlet

(in.)

AGA Certified Capacity for

Natural Gas

AGA Certified Minimum

Regulation for Natural Gas

AGA Certified Maximum

Regulation for

Natural Gas

/hr

VR8104

1/2 x 1/2

2.3

0.4

120

3.4

VR8204

150

4.2

0.6

200

5.7

VR8304

b,c

240

6.8

0.8

340

9.6

VR8304

b,c

1/2 x 3/4

270

7.6

370

1.05

VR8304

b,c

3/4 x 3/4

300

8.5

415

11.8

Gas

Specific Gravity

Multiply Listed

Capacity By

Manufactured

0.60

0.516

Mixed

0.70

0.765

Propane

1.53

1.62

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About this manual

Brand: Honeywell
Model: VR8204
Document type: Manual
Language(s): English
Pages: 12
File size: 231.4 KB
Format: PDF

Summary

Page 1 - Gas Control Installation and Capacity Conversion

Installation instructions for intermittent pilot combination gas controls, valve capacities, gas capacity conversion factors, and requirements for CE-approved models.

Page 2 - Technical Specifications and Model Designations

Technical specifications, model designations, ambient temperature/pressure correlations, and specific technical details for VR8104, VR8204, and VR8304 controls.

Page 3 - Installation Specifications and Hazard Warnings

Specifications and installation guidelines including flange adapter part numbers, gas conversion kits, electrical ratings, and warnings regarding fire/explosion hazards, cleaning, and humidity.