Installation Sheet

12 Page
Installaon
Installaon Manual
OUTDOOR INSTALLATION
1. Follow all local codes, or in the absence of local codes, follow the current edition of the National
Fuel Gas Code: ANSI Z223.1/NFPA 54 in the USA or B149.1 Natural Gas, Propane Installation Code in
Canada.
2. Install outdoors only in areas with mild, temperate climates.
3. Change the DIP switch for outdoor installation. Locate the lower banks of DIP switches on the right of
the 7-Seg. LED on the center computer board. (See the graphic below.) The No. 6 ("OUT") DIP switch
on that bank must be switched to its ON position and the No. 5 ("DIRE") DIP switch must be in the
OFF positon. (Do not adjust the upper bank of DIP switches).
4. The outdoor vent cap must be used when unit is installed outdoor. The manufacturer requires the use
of its part No. 100112194 (TM-VC50).
5. When installed outdoors, the water heater shall be wall-mounted or mounted on a stand. Locate the
water heater in an open, unroofed area and maintain the minimum clearances that are listed at the
bottom of this page.
WARNING
• To change the DIP switch settings for outdoor installation, locate the lower bank of
DIP switches at the bottom of the center computer board as shown below.
• Only adjust the appropriate DIP switches as shwon below.
• Turn off the power supply to the water heater before changing the DIP switch settings.
• Failure to observe this warning could result in carbon monoxide poisoning or death.
 Maintain all clearances around the
water heater. Failure to do so could
create a fire hazard, potentially lead-
ing to death, serious injury, and/or
property damage.
 There is a 3 inch (76 mm) clearance
from the left and right sides of the
unit to combustible and non-com-
bustible surfaces. However, if any
portion or area of the surface is
exposed to the exhaust fumes (i.e.
directly to the sides of the vent cap),
that surface must be at least 24 inch
(610 mm) away.
WARNING
Top
36 in.(914 mm)
Side
24 in.(610 mm)
Side
24 in.(610 mm)
Front
24 in.(610 mm)
Front
24 in.(610 mm)
Boom
12 in.(305 mm)
Side
3 in.
(76 mm)
Side
3 in.
(76 mm)
Back
0.5 in.
(13 mm)
-Clearances-
ON
MST
P-ALARM
OUT DIRE MODE TMP3 TMP2 TMP1
87654321
The dark squares indicate the correct
positions of DIP switches.
The lower bank of DIP switches
ON
OFF