Heat Transfer Phoenix, Installation & Operation Manual

Page: 17 / 76

16
PART 4: PREPARE WATER HEATER
A. ELECTRICAL CONNECTION
The electrical connection for the Phoenix is on the right side of the combustion shroud with a line
cord for electrical connection. All electrical wiring must be performed by a qualified licensed elec-
trician and in accordance with National Electrical Code or to the applicable local codes and stan-
dards. The electrical requirements are for standard 120 volts, 60 Hz 15 amp dedicated service.
B. GAS CONNECTION
The gas supply shall have a maximum inlet pres-
sure of less than 14" water column (350 mm), ½
pound pressure (3.5 kPa), and a minimum of 3.5"
water column. The entire piping system, gas
meter and regulator must be sized properly to
prevent pressure drop greater than 0.5" WC as
stated in the National Fuel Gas Code. This infor-
mation is listed on the rating plate. It is very
important that you are connected to the type of
gas as noted on the rating plate. "LP" for liquefied
petroleum, propane gas or, "Nat" natural or city
gas. All gas connections must be approved by
the local gas supplier, or utility in addition to the
governing authority, prior to turning the gas sup-
ply on.
Do not remove this adaptor! It is manda-
tory that this fitting is used for connection to a
field fabricated drip leg as shown in the illustra-
tion at right per the National Fuel Gas Code.
You
must ensure that the entire gas line to the con-
nection at the Phoenix Water Heater is no smaller
than ¾". Once all the inspections have been performed, the piping must be leak tested. If the leak
test requirement is a higher test pressure than the maximum gas inlet pressure, you must isolate the
Phoenix from the gas line to continue leak testing. In order to do this, you must turn off the factory
and field-installed gas cocks. This will minimize the possibility of damaging the Phoenix gas valve.
Failure to do so may damage the gas valve. In the event the gas valve is exposed to a pressure
greater than ½ PSI, 14" water column, the gas valve must be replaced. Never use an open flame
(match, lighter, etc.) to check gas connections.
C. GAS PIPING
1. Run the gas supply line in accordance with all applicable codes.
2. Locate and install manual shutoff valves in accordance with state and local requirements.
PREPARATION
UNION
DRIP LEG
MIN 3/4"
n
WARNING
Failure to follow all precautions could result in fire, explosion or death!
n
WARNING
It is of extreme importance that this unit be properly grounded. It is very important that the
building system ground is inspected by a qualified electrician, prior to making this connection.
It is very important that the electrical power is only turned on when the Phoenix is completely
filled with cold water.
Fig. 4-1