Grand Bay 40 Direct Vent Freestanding
Page 5
January 2000
SPECIFICATIONS
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NATURAL GAS
PROPANE
Manifold pressure
3.5 WC
10.0 WC
Minimum inlet gas supply pressure
4.5 WC
11 0 WC
Maximum inlet gas supply pressure
7.0 WC
14.0 WC
BTU input rating (high)
40,000 40,000
BTU output rating (high)*
33,400 33,600
BTU input rating (low)
28,000 28,000
BTU output rating (low)*
23,380 23,520
Minimum efficiency*
77.6% 80.2%
Maximum efficiency**
83.5% 84%
*Minimum vent, blower off
**Maximum vent, blower on
GAS LINE CONNECTION
Gas line connection can be made near the lower rear of the stove (3/8 gas hookup). You must supply a
shutoff valve installed in a visible location within 3 (914mm) of the stove.
CAUTION
IN SOME AREAS, GAS LINE PRESSURE MAY BE MORE THAN 1/2 PSIG (14 WC). IF
YOU BELIEVE THAT THIS MIGHT BE THE CASE IN YOUR LOCALITY, CONTACT YOUR
GAS SUPPLIER OR LOCAL UTILITY COMPANY. LINE PRESSURE GREATER THAN 1/2
PSIG WILL DAMAGE THE STOVE VALVE. YOU MUST INSTALL A REGULATOR
UPSTREAM FROM THE STOVE IF LINE PRESSURE IS GREATER THAN 1/2 PSIG.
PRESSURE TESTING
During any pressure testing of the gas supply piping system that exceeds test pressures of 1/2 PSIG, this
stove and its individual shutoff valve must be disconnected from the piping system. If test pressure is less
than or equal to 1/2 PSIG, then this stove must be isolated from the piping system by closing its individual
shutoff valve. The gas valve is supplied with pressure test ports for checking input and output pressures.
These are located just above the on/off knob and can be found inside the hinged lower access grill. The port
on the left is for output pressure and the port on the right for input. Pressure can be checked by turning the
captured screw counterclockwise two or three turns and then placing the manometer tubing over the test
port. BE SURE TO CLOSE CAPTURED SCREWS AFTER TESTING BY TURNING THEM
CLOCKWISE. DO NOT OVERTIGHTEN SCREWS.
NOTE:
To make flame and heat output adjustments, turn the HI-LO knob located on the center of the valve
(as seen below). Turn counterclockwise for a higher flame and clockwise for a lower flame.
SPECIFICA
TIONS