A SH / S-TRAC MANUAL
13 of 29 Feb 06
AS REQUIRED BY
CHIMNEY TYPE "B" OR EQUIVALENT
COMBUSTABLE
VENT CONNECTOR
INDOOR UNIT
DRAFT HOOD
BURNER
INSTALLATION
CODE / AUTHORITY
NATURAL GAS INSTALLATION:
1. Installation must be made in accordance with the requirements of the authorities having jurisdiction.
2. Check the unit rating plate and confirm fuel type, supply pressure, input rating and temperature rise.
3. Gas supply pressure higher than the unit rating plate requires an additional field supplied gas regulator.
4. Install an approved appliance shutoff valve on the gas supply in accordance with the requirements of
the authorities having jurisdiction.
5. Gas lines shall not interfere with unit access. The gas line connection at the heater shall have an
approved drip leg with screwed cap.
6. A minimum 1/8 inch NPT plugged tapping, accessible for test gauge connection, must be installed
immediately upstream of the gas supply connection to the unit.
7. On indoor units any control device (regulator, diaphragm valve, high and low pressure switch, etc.) that
requires a bleed or vent line, must be vented in accordance with applicable codes.
GAS LINE TESTING (EXTERNAL TO THE UNIT)
The appliance and its individual shutoff valve must be disconnected from the gas supply piping system
during any testing of that system at test pressures in excess of 0.5 psi (3.5 kPa).
The appliance must be isolated from the gas supply system by closing its individual shutoff valve during
any testing of that system at test pressure equal to or less than 0.5 psi (3.5 kPa).
VENTING PRODUCTS OF COMBUSTION
Installation shall be in accordance with the
requirements of authorities having jurisdiction and
ANSI Z2231/NFPA 54 or CSA B149.1. Heaters
must be provided with sufficient combustion air and
shall not be located in an area where a negative
pressure will be created that will starve the burner
of combustion air. Flue outlet pressure must not
exceed maximum over fire pressure shown on the
nameplate.
Do not connect the vent to any portion of
mechanical draft systems that are under positive
pressure. Do not install dampers or other
restrictive devices in the flue vent pipe.
Vent terminations shall be in accordance with the
requirements of the authorities having jurisdiction.
The vent shall be installed in such a manner that access to the appliance or unit rating plate is not
obstructed.
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