CAUTION
Should over heating occur, or the gas supply fail to shut off,
tur n off the manual gas valve to the appliance immediately.
A. I
NSTALLATION
(1)
T
HIS SECTION ADDRESSES THE INSTALLATION OF
A
CE
B
OILER
I
NC
. W
ATER
H
EATERS WITHIN MECHANICAL SYSTEMS
,
AND IS INTENDED
TO PROVIDE SOME EXPLANATION OF NORMAL SYSTEM HOOK
-
UP AND OPERATION AS WELL AS DESCRIPTIONS OF SOME COMMONLY
ENCOUNTERED SYSTEM PROBLEMS AND SOLUTIONS
.
(2)
Install the heater in accordance with the following instructions. A qualified installation company should always be used.
(3)
The heater must be installed in accordance with all state and local codes, and all national codes, including, but not limited to:
·
ANSI Z21.10.2, GAS WATER HEATERS
·
ANSI Z223.1, NATIONAL FUEL GAS CODE
·
ANSI / NFPA 70, NATIONAL ELECTRIC CODE.
(4)
Install per heater-tank diagram located on page 4.
(5)
Connect the piping to draw cool water from the lower portion of the tank through the circulating pump to the bottom inlet heater connection. If a flow switch
is used it should be connected near the pump outlet.
(6)
Connect the hot water return line from the heater to the tank as shown in the hook-up diagram.
(7)
Connect the cold water inlet supply directly into the tank as shown in the hook-up diagram. Do not use a check valve on the cold water inlet line. If a
check valve is installed in the cold inlet line then a properly sized expansion tank should be added to the system to prevent the relief valve from popping.
(8)
The hot water outlet line should be connected at the highest part of the tank to avoid air entrapment, which can cause rapid corrosion at the top of the tank.
(9)
Install a thermometer, a drain valve, and a relief valve (anode if required) on the tank as shown in the hook-up diagram.
(10)
Page 4 illustrates a normal installation for a single heater with a storage tank. Cold water is supplied to the storage tank while system
hot water is drawn from the top of the storage tank. Water is supplied to the water heater by a circulating pump which is normally wired
to operate on a continuous basis.
Return Water temperature must be above 140 degrees F to avoid condensation damage
.
Note: Page 4 depicts piping schematics for multiple heater installations with vertical and horizontal storage tanks.
B. I
DENTIFICATION
(1)
Your Ace Water Heater carries two identification plates. The coil plate, which carries the ASME Code Stamping and Registration Number (when applica-
ble) is attached to the coil just inside the upper manifold assembly. The boiler nameplate lists information concerning the input and output of the unit, elec-
trical and gas ratings, working pressure and clearance to adjacent construction figures. In addition the model and serial numbers are on the plate. You will
need these to order replacement parts from the manufacturing representative in your area or from the factory.
(2)
The information on the National Board plate is the same as on the name plate with the exception of the National Board registration number, which is
required in most states for installation of the unit.
Do not remove either of these plates from the unit for any reason.
C. L
OCATION
(1)
Set the heater on a non-combustible floor. If the floor is combustible, a special "Combustible Floor Base" (CFB) must be used. Locate the heater so that leakage from tank or
connections will be directed to a floor drain and will not damage adjacent area or lower level floors.
(2)
The minimum clearance between a heater and a storage tank is 6". For multiple heater installations a minimum of 6" clearance between heaters shall be
maintained. For alcove installation, the minimum clearance to combustible construction is 24" to side and rear walls and 36" from the top of the heater to
the ceiling. The front of the alcove shall remain open. Local and state codes may require greater clearances.
(3)
Allow sufficient space in front of heater for cleaning and removal of burners, replacement of the draft hood and controls, and the adjustment of all parts requiring such attention.
Keep the area around the heaters free from combustibles and flammable liquids.
(4)
Minimum ventilation and combustible air openings to the room in which the heater is located must be provided in accordance with NATIONAL FUEL GAS CODE
ANSI Z21.13.
D. C
OMBUSTION AND
V
ENTILATION
A
IR
CAUTION
The lack of adequate combustion air is the single biggest
problem encountered with gas fired water heaters.
(1)
Ace recommends that two permanent openings to outside air be provided, one 6" from the floor and the other 6" from the ceiling. The combined area of
the two openings should not be less than 200 sq. in. for the first 100,00 BTUH heater input, and 100 sq. in. for each additional 100,000 BTUH heater input.
(2)
All additional gas fired equipment should be considered when calculating the necessary air supply.
(3)
The openings should have permanent, non-adjustable louvers properly designed so that they provide a baffling effect under wind conditions. Wood louvers may be consid-
ered to have 20-25% free area, and metal louvers may be considered to have 60-75% free area.
(4)
It is important to locate the heaters so that they are not adversely affected by wind, draft or freezing conditions that may exist in the room.
(5)
Air may be supplied by the use of ducting, fans, etc. It is extremely important, however, that any system be designed and installed by a qualified profes-
sional in such a manner that no positive or negative air pressure exists in the room in which the heaters are installed. Such a problem will result in improp-
er combustion and sooting problems.
(6)
Required draft at the outlet stack must be within the range of -.02 to -.04 inches water column.
E. E
LECTRICAL
C
ONNECTIONS
(1)
A junction box is provided on the heater jacket for the electrical service connection.
(2)
For multiple heater installations, each heater is to be wired in parallel with all the other heaters so that each heater will operate independently.
(3)
The circulating pump (and the return pump if used) should be wired in parallel with the heater(s) to run continuously.
(4)
The heater(s) when installed, must be electrically grounded in accordance with state and local codes and in accordance with the NATIONAL ELECTRICAL
CODE ANSI / NFPA 70-1984.
(5)
If any of the original wiring as supplied with the heater/boiler is replaced, it must be replaced with 18" AWG TFF wire or its equivalent.
INSTRUCTIONS
For Ace Gas Fired Copper Fin Volume Water Heaters
S
ECTION
250
CONTINUED
T
HIS SECTION ADDRESSES THE INSTALLATION OF
Ace Heating Solutions, LLC W
ATER
H
EATERS WITHIN MECHANICAL SYSTEMS
,
AND IS INTENDED
TO PROVIDE SOME EXPLANATION OF NORMAL SYSTEM HOOK
-
UP AND OPERATION AS WELL AS DESCRIPTIONS OF SOME COMMONLY
ENCOUNTERED SYSTEM PROBLEMS AND SOLUTIONS
.
