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TOA Electronics VFST-CMN-2 User Manual

Page 2

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NOTE: DIAGRAMS & ILLUSTRATION NOT TO SCALE.

2

Caulking materials (noncombustible)
Fireplace surround materials

Check the inventory list to be sure that you have
all the necessary parts in usable condition. Also
check for concealed damage.

IMPORTANT SAFETY INFORMATION

INSTALLER: PLEASE LEAVE THESE INSTRUC-
TIONS WITH THE OWNER.

OWNER: PLEASE RETAIN THESE INSTRUC-
TION FOR FUTURE REFERENCE.

TABLE OF CONTENTS

General Information ......................... page

2

Inventory ......................................... page

2

Tools and Building Supplies ............ page

2

Installation Applications .................. page

2

Important Safety Information .......... page

2

Codes .............................................. page

3

Combustion and Ventilation Air ....... page

3

Location of Fireplace ....................... page

4

Clearances ....................................... page

4

Preinstallation .................................. page

5

Installation – Built-In ....................... page

5

Finished Wall Details ....................... page

6

Electrical Wiring – Optional Blower . page

7

Connecting Gas Line ........................ page

7

Gas Pressure Check ......................... page

7

Installation – Surround .................... page

8

Log Assembly .................................. page

9

Flame Appearance ........................... page

9

Optional Equipment ......................... page 10

Blower Kit ........................................ page 10

Cleaning and Servicing .................... page 11

Replacement Parts .......................... page 11

Accessories/Components ................ page 12

Appliance Specifications .................. page 13

Troubleshooting Guide .................... page 15

Operating Instructions ..................... page 16

Replacement Parts List .................... page 19

Valve

Regulator Pressure

Gas Inlet

Model No.

Gas Type

Maximum BTU/HR

Operation

Ignition

Setting

Pressure

VFST-CMN-2

Natural

27,000 Low

Millivolt with

Piezo

5" w.c.

Max 10-1/2" w.c.

VFPF-CMN-2

34,000 High

Flame Control

Min. 6" w.c.

VFST-CMP-2

Propane/

27,000 Low

Millivolt with

Piezo

10" w.c.

Max 13" w.c.

VFPF-CMP-2

LPG

34,000 High

Flame Control

Min. 11" w.c.

UNVENTED GAS ROOM HEATER SPECIFICATIONS AND TECHNICAL DETAILS

Note: Test gage connections are provided on the front of the gas control valve (identified A for the manifold side and E for inlet pressure).

A spark ignition system (piezo) allows the heater
pilot gas to be lit without the use of matches or
batteries and permits operation of the heater
during a power outage.

These heaters are fitted with a specially de-
signed pilot (ODS) which responds to the
amount of oxygen available in the room and
shuts the heater off before the oxygen level
drops below 18%. The pilot can be relit only
when fresh air is available. Refer to the Com-
bustion and Ventilation Air section.

The VFST and VFPF Series Unvented Room
Heaters must be built into a framed wall.

This heater has been tested to the standards of
ANSI Z21.11.2 unvented heaters.

Do not install these unvented room heaters in
a bedroom or bathroom as all units exceed
maximum allowable BTU/Hr input of 10,000.

Inventory

Unvented Gas Fireplace
Installation and Operating Instructions

Tools and Building Supplies
Normally Required

Tools Should Include:

Phillips screwdriver
Hammer
Saw and/or Sabersaw
Measuring tape
Electric drill and bits
Pliers
Square
Piping complying with local codes
Pipe wrench
Tee joint
Pipe compound

Building Supplies Should Include:

Framing materials
Wall finishing materials

GENERAL INFORMATION

The VFST and VFPF Series Unvented Room
Heaters covered in this manual feature a unit-
ized set of eight (8) ceramic fiber split logs.

These heaters have a standing pilot and may be
manually controlled through the use of an on/
off wall switch or wall thermostat or any com-
bination of both of them.

IMPORTANT: BEFORE STARTING YOUR
HEATER INSTALLATION, READ THESE INSTAL-
LATION INSTRUCTIONS CAREFULLY TO BE
SURE YOU UNDERSTAND THEM COMPLETELY
AND IN ENTIRETY. FAILURE TO FOLLOW
THESE INSTRUCTIONS COULD CAUSE A
HEATER MALFUNCTION RESULTING IN SERI-
OUS INJURY AND/OR PROPERTY DAMAGE.

WARNING: FAILURE TO COMPLY WITH
THE INSTALLATION AND OPERATING
INSTRUCTIONS PROVIDED IN THIS
DOCUMENT WILL RESULT IN AN IM-
PROPERLY INSTALLED AND OPERAT-
ING UNVENTED ROOM HEATER, VOID-
ING ITS WARRANTY. ANY CHANGE TO
THIS HEATER AND/OR ITS OPERATING
CONTROLS IS DANGEROUS. IMPROPER
INSTALLATION OR USE OF THIS HEATER
CAN CAUSE SERIOUS INJURY OR DEATH
FORM FIRE, BURNS, EXPLOSION OR
CARBON MONOXIDE POISONING.

WARNING: THESE APPLIANCES ARE
DESIGNED TO OPERATE ON NATURAL
OR PROPANE GAS ONLY. THE USE OF
OTHER FUELS OR COMBINATION OF
FUELS WILL DEGRADE THE PERFOR-
MANCE OF THIS SYSTEM AND MAY BE
DANGEROUS.