Williams 1773511 - Manual (Page 4)

Some Points to Remember
• Learn to recognize the odor of LP Gas. Your local LP Gas dealer can give you a ”Scratch and Sniff” pamphlet. Use
it to find out what the propane odor smells like. If you suspect that your LP Gas has a weak or abnormal odor, call
your LP Gas dealer.
• If you are not qualified, do not light pilot lights, perform service, or make adjustments to appliances on the LP Gas
system. If you are qualified, consciously think about the odor of LP Gas prior to and while lighting pilot lights or
performing service or making adjustments.
• Sometimes a basement or a closed–up house has a musty smell that can cover up the LP Gas odor. Do not try to
light pilot lights, perform service or make adjustments in an area where the conditions are such that you may not detect
the odor if there has been a leak of LP Gas.
• Odor fade, due to oxidation by rust or absorption on walls of new cylinders and tanks, is possible. Therefore, people
should be particularly alert and careful when new tanks or cylinders are placed in service. Odor fade can occur in
new tanks or reinstalled old tanks if they are filled and allowed to set too long before refilling. Cylinders and tanks
which have been out of service for a time may develop internal rust which will cause odor fade. If such conditions
are suspected to exist, a periodic sniff test of the gas is advisable. If you have any question about the gas odor,
call your LP Gas dealer. A periodic sniff test of the LP Gas is a good safety measure under any condition.
• If, at any time, you do not smell the LP Gas odorant, and you should, assume you have a leak. Then take
the same immediate action recommended when you do smell the odorized LP Gas.
• If you experience a complete ”gas out” (the container is under no vapor pressure), turn the tank valve off immediately.
If the container valve is left on, the container may draw in some air through openings such as pilot light orifices.
If this occurs, some new internal rusting could occur. If the valve is left open, then treat the container as a new tank.
Always be sure your container is under vapor pressure by turning it off at the container before it goes completely
empty or having it refilled before it is completely empty.
Technical Data
kW 4.25 mbar 7.7
OUTPUT HEATING CAPACITY
kBTU/hr 14,514
NATURAL
GAS in
W.C.
3.1
kW 5.19 mbar 26.4
INPUT RATING
kBTU/hr 17,700
MAX
LP
in
W.C.
10.6
kW 3.84 mbar 4.6 MINIMUM INPUT RATING
(LO Input)
kBTU/hr 13,100
NATURAL
GAS
in
W.C.
1.8
THERMAL EFFICENCY % 82.00 mbar 16.3
mm 553
MANIFOLD PRESSURE
MIN
LP
in
W.C.
6.6
LENGTH
in 21-3/4 m 3 /h 0.5
mm 715
NATURAL
GAS ft 3 /h 17.8
HEIGHT
in 28-1/8 m 3 /h 0.2
mm 208
MAX
LP
ft 3 /h 6.9
DEPTH
in 8-1/4 m 3 /h 0.4
kg 26
NATURAL
GAS
ft 3 /h 13.3
WEIGHT
lbs. 57 m 3 /h 0.1
GAS CONNECTION NPT
3/8
FEMALE
GAS RATE
MIN
LP
ft 3 /h 5.3
mm 50 mbar 17.4
WALL HOLE DIAMETER
in 2
NATURAL
GAS in
W.C.
7.0
mm 49 mbar 27.4
AIR INLET DIAMETER
in 1-7/8
MINIMUM INLET
PRESSURE
LP
in
W.C.
11.0
mm 35 m 3 /h 220
EXHAUST PIPE DIAMETER
in 1-3/8
AIR FLOW
cfm 129
mm 150 m 3 /h 160
MIN WALL THICKNESS
in 5-7/8
MINIMUM AIR FLOW
cfm 94
mm 500 TOTAL ELECTRICAL LOAD W 86
MAX WALL THICKNESS
in 19-5/8
3