John Wood Commercial - AJWSC - Manual (Page 7)

• If the water heater is installed in a restaurant or food serv-
ice location where the floor is cleaned frequently, NSF
International requires the water heater to maintain
152mm (6 in.) of clearance above the floor. To comply
with the NSF International requirement, install leg exten-
sion kit. For availability contact 1-888-479-8324
• The water heater is certified for installation on a com-
bustible floor.
GAS SUPPLY
Read the data plate to be sure the water heater is made
for the type of gas you will be using in your application.
This information will be found on the data plate located near
the integrated control. If the information does not agree with
the type of gas available, do not install or attempt to start.
Call your dealer.
Note: An odourant is added by the gas supplier to the gas
used by this water heater. This odourant may fade over an
extended period of time. Do not depend upon this odourant
as an indication of leaking gas.
Gas Piping
This gas piping must be installed in accordance with all local
and provincial or state codes or, in the absence of such, the
latest edition of “Natural Gas and Propane Installation
Code” CAN/CSA-B149.1 (Canada), or “National Fuel Gas
Code” ANSI Z223.1 (NFPA 54) (U.S.A.).
DANGER
Explosion Hazard
• Use a new CSA or AGA approved gas sup-
ply line.
• Install a gas supply shut-off valve.
• Do not connect a natural gas water heater
to a L.P. gas supply.
• Do not connect a L.P. gas water heater to
a natural gas supply
• Failure to follow these instructions can
result in death, an explosion or carbon
monoxide poisoning.
Figure 3 Gas Piping
– 7 –
Figure 2 Minimum Clearance Locations
Sides
Top to
ceiling
Vent
Front View
Top View
Sides
Back
Front 610mm (24 in.)
min. for service
Ground
Joint
Union
Manual Gas
Shut-off
Valve
Drip Leg
Check with
local utility for
min. height