4
INSTALLATION
Service Connections
GAS SERVICE CONNECTIONS: *
1. The boiler is factory adjusted for a gas input of 200
and 300K BTU/HR at the pressure indicated. Please
read the rating plate behind the Lift-Off Front Panel. If
this plate is marked for a different gas than that sup-
plied, notify your dealer immediately. Install an exter-
nal gas supply shut off valve in a visible and acces-
sible location. If the unit is placed at the minimum side
clearances rather than the optimum side clearances,
the only acceptable location for the gas supply shut
off valve is under the unit in the space provided by
the legs.
2. Use new iron or steel pipe complying with the latest
ANSI Standard for Wrought-Steel and Wrought-Iron
Pipe, B36, properly threaded, reamed and free from
chips, oil and dirt. If pipe dope is used, apply a moder-
ate amount leaving two end threads bare. Pipe dope
must be resistant to LP gas. Connect the gas line into
the bottom (inlet) side of the shutoff valve. The supply
pressure must be at least 1” (25mm) water column
higher than the manifold or regulator pressure for
proper functioning of the regulator. If it is not check
the supply pipe for blockage or excessive pressure
drop and make necessary corrections.
3. Perform a gas leak test of all newly-made joints, as
well as those leading to the main gas control valve.
Use a soap solution, DO NOT USE FLAME. Natural
gas units are equipped with a pressure regulator fac-
tory adjusted to give 4” (102mm) water column mani-
fold pressure.
4. Propane gas units are equipped with a pressure reg-
ulator, factory adjusted, to give 10” (254mm) water
column manifold pressure.
5. ONLY A LICENSED GAS FITTER SHOULD MAKE
GAS LINE CONNECTIONS.
ELECTRIC SERVICE CONNECTION: *
Connect boiler controls to 110/120 volt AC, 60Hz, single
phase branch circuit rated 15 amps capacity, using the
three prong plug provided.
* Gas and Electrical connections should be made by li-
censed tradesmen only.
SERVICE CONNECTIONS
G
Gas Connection
- 3/4” (19mm) NPT 200,000 BTU
G1 Gas Connection
- 1” (25mm) NPT, 300,000 BTU
CW1 Cold Water
- 3/8” (10mm) NPT for cold water to boiler. Cold
water lines will have a maximum of 50 PSI (3.5kg/cw2) and
a minimum of 25 PSI (1.8 kg/cw2) water pressure
CW2 Cold Water
- 3/8” (10mm) NPT for cold water to condenser.
Cold water lines will have a maximum of 50 PSI (3.5kg/cw2)
and a minimum of 25 PSI (1.8 kg/cw2) water pressure.
D
Drain
- Pipe full 2” (50mm) NPT to flush floor drain
capable of receiving water flowing at a maximum rate of
5 gallons (19 liters) per minute. DO NOT MAKE SOLID
CONNECTION TO FLOOR DRAIN.
EC Electrical Connection
- 120 Volts AC, 60 Hz, single
phase, and a 9 foot Power Cord/NEMA 5-15.
ST Steam Take-off
- Connection for operation of adjacent
steam powered equipment.
NOTE: If equipment is installed where elevation exceeds
2,000 feet (609.6 meters) above sea level, spec-
ify installation altitude so that proper gas orifices
can be provided.
The only available space to supply utilities to the gas
boiler is the 6” (152mm) space between the floor and the
cabinet.
Allow 3” (76mm) space from side wall and 6” (152mm)
from real wall if adjoining walls are combustible.
PVC & CPVC PIPE ARE NOT ACCEPTABLE MATERI-
ALS FOR DRAINS.
DRAIN LINE INSTALLATION: The drain port of the unit
is marked with a colored tag and is located at the lower
rear left side of the boiler as viewed from the front. This
exhaust line may be left open if the boiler has to be situ-
ated in a tiled floor depression or a tiled curb section that
is equipped with drain facilities. If this is not the case,
then a 2” (51mm) NPT drain line must be connected to
divert the exhaust to the floor drain. If it is necessary to
use more than two elbows, increase the size of the waste
line accordingly.
CAUTION:
REMOTE KETTLE OPERATION If this boiler is
feeding a remote kettle that will be more than 5 feet (1.5
meters) away, consult factory before ordering.