Introduction; Venting - COZY VC Serie Instrucciones Para La Instalación Y La Operación

THIS IS A GAS-FIRED, GRAVITY VENTED ROOM HEATER THAT WILL OPERATE SAFELY AND PROVIDE AN EFFICIENT
SOURCE OF HEAT WHEN INSTALLED, OPERATED AND MAINTAINED AS RECOMMENDED IN THESE INSTALLATION AND
OPERATING INSTRUCTIONS. READ THESE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING, SERVICING, OR USING
THIS APPLIANCE. IF YOU DO NOT UNDERSTAND ANY PART OF THESE INSTRUCTIONS, CONSULT LOCAL AUTHORITIES,
OTHER QUALIFIED INSTALLERS, SERVICE TECHNICIAN, THE GAS SUPPLIER, OR THE MANUFACTURER.
This heater must be connected to a properly installed and maintained venting system. This heater is equipped with a manual
reset vent safety shut-off device. Pilot burner outage will occur if the heater is not connected to a vent system. Pilot burner outage
may occur due to restriction or blockage in the vent or if connected to a masonry chimney having an area greater than the vent
size shown on Page 2. This appliance should be vented through a properly sized listed type B vent that has been constructed in
accordance with the National Building Code. If a horizontal section of vent is used, it must slope upwards a minimum of ¼ inch
per foot of length.
This heater must not be connected to a vent system being used for wood or coal burning appliances. The use of more than one
appliance per vent system will most likely cause the vent safety shut-off device to shut off the heater due to the cooling of vent
temperatures through the draft diverter of the second appliance. In some situations, the vent safety shut-off may shut down the
heater if a large, unlined, masonry chimney is used. Due to low vent temperatures associated with more efficient heaters it may
take too long to get the vent action going in a chimney before the shut-off device will shut down the heater. If this is the case, we
recommend lining the chimney with the proper size type B vent pipe or type B chimney liner.
WARNING: Do NOT bypass the vent safety shutoff switch. To do so could expose
the consumer to property damage, personal injury or possible death.
The switch, when activated, will extinguish the burner flame. If the homeowner experiences this problem, the vent system must
be checked and corrected.
NOTE: An existing vent that has worked for years may not be adequate for todays design because of higher efficiency
requirements resulting in lower stack temperatures. The following is a list of possible causes and corrective actions.
POSSIBLE CAUSES
1. Blockage in
Vent Pipe
2. Burner is
Over Firing
3. Improper Vent System
A. Vent Too Short
B. Restriction in
Vent System
Caused by
Offsets
C. Incorrect Vent Pipe
4. Loose Connections
on the Vent Safety
Wiring Harness

INTRODUCTION

VENTING

CORRECTIVE ACTION
1. A) Check vent pipe for blockage, such as bird nest, wasp nest, twigs, leaves, etc.
B) Check that the vent cap is properly installed, not shoved too far down on the vent pipe.
2. A) Check the manifold pressure.
B) Check the rate
NOTE: This appliance was orificed for elevations up to 2,000 feet. When
installed at higher elevations refer to orifice chart (on page 9) in main burner
orifice section of instructions for proper orifice size and re-orifice accordingly.
3. Correct Vent System
A) The vent should not terminate less than 5 feet above the drafthood connection. A gas vent
extending through an exterior wall shall not terminate adjacent to the wall or below eaves or
parapets. Also, the top of the vent must be at least 2 feet above all obstacles within a 10 feet
radius, including the roof. See Figure A (on page 4).
B) All type "B" vent shall extend in a generally vertical direction with offsets not exceeding 45
degrees, except that a vent system having not more than one 60 degree offset may be
allowed. Any angle greater than 45 degrees from the vertical is considered horizontal. The
total horizontal run of a vent plus the horizontal vent connector shall be not greater than 75
percent of the vertical height of the vent. Any offsets used should be as far above the drafthood
as possible to allow the venting action to begin before any restriction is encountered.
C) Use listed "B" type vent pipe. Do not use transite or any other type of ceramic pipe for
venting. Do not use single wall pipe for vent or vent connector.
4. Check the connection on both the switch and the gas valve. Tighten if necessary.
Page 3
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1017480-A