8
Harsco Industrial, Patterson-Kelley Technical Service 1.877.728.5351
INST
alla
TION
Gas Fired Boiler
9
Harsco Industrial, Patterson-Kelley Technical Service 1.877.728.5351
INST
alla
TION
Gas Fired Boiler
3.2 C
oMplIanCe
WITh
C
odes
The boiler with standard components and with many options complies
with American National Standard/
CSA
Standard
ANSI Z21.13/CSA 4.9
,
latest edition, Gas-Fired Low Pressure Steam and Hot Water Boilers.
The heat exchanger is constructed and stamped in accordance with
ASME
Boiler and Pressure Vessel Code, Section IV (160 psig maximum
operating pressure) and Section VIII.
Installation of the boiler must conform to all the requirements of all
national, state and local codes established by the authorities having
jurisdiction or, in the absence of such requirements, to the National Fuel
Gas Code,
ANSI Z223.1/NFPA 54
latest edition in the U.S. In Canada, the
equipment shall be installed in accordance with the current Installation
Code for Gas Burning Appliances and Equipment,
CAN/CSA-B.149
, latest
edition, and applicable Provincial Regulations for the class, which should
be carefully followed in all cases. Authorities having jurisdiction should be
consulted before installations are made.
Where required by local codes, the installation must conform to American
Society of Mechanical Engineers Safety Code for Controls and Safety
Devices for Automatically Fired Boilers (
ASME CSD-1
).
In the Commonwealth of Massachusetts (a) this unit must be installed by
a licensed pipe fitter/plumber, (b) field installed gas cocks must be “T” handle type, (c) piping of condensate shall
conform to the State Plumbing Code, and (d) refer to the Massachusetts Supplement for further details.
3.3.1 Foundation
Provide a firm, level foundation, preferably of concrete. Lifting the front of the boiler slightly will allow the boiler
to be rolled off the shipping skid onto the concrete foundation. Once in position, the wheel bolts may be removed
allowing the wheels to recess up into the boiler. The base will sit flat on the provided foundation. If the boiler is to
be pulled out for maintenance, the wheels may be left attached.
3.3 s
eTup
The boiler must be level to function properly. Six 9/16” holes in the base may be used for 3/8” seismic anchors.
3.3.2 Placement
Bumping hazard from overhead
ducts! Install all components with
adequate vertical clearances.
The wheels provided with this
boiler are for positioning purposes
only. When positioning this boiler,
maintain positive control of it at
all times. Do not attempt to move
the boiler on surfaces that are not
level. Failure to heed this warning
could result in personal injury or
death.
Installation and service must be
performed by a qualified installer,
service agency, or gas supplier.
!
WARNING
!
WARNING
!
WARNING
Controls and other equipment
that are damaged or fail due to
weather exposure are not covered
by warranty.
The boiler may be installed on a
combustible floor; however, the
boiler must never be installed on
carpeting.
n
oTICe
!
n
oTICe
!
3 I
nsTallaTIon
3.1.2 storage Prior to Installation
If the boiler is not installed immediately, it must be stored in a location
adequately protected from the weather, preferably indoors. If this is not
possible, then it should remain in the shipping container and be covered
by a tarpaulin or other waterproof covering.
3.1.1 Initial Inspection
Upon receiving the boiler, inspect it for signs of shipping damage. Some
damage may be hidden. Unpack the boiler, open the front and side doors
and inspect the boiler. Verify that the total number of pieces shown on the
packing slip agrees with those actually received.
3.1 r
eCeIvIng
and
s
Torage
3.4 e
leCTrICal
C
onneCTIons
The
SC-3000
and
SC-4000
boilers are available as either
208-240 VAC
, three phase, 60 hertz or
440-480VAC
, three
phase, 60 hertz electrical service.
Refer to sections 6.1.4, 6.1.5 and 6.2.2
for proper wiring and configuration of
the electrical connections. The total operating amperage is indicated on the rating nameplate. Each
SC-3000
or
SC-4000
boiler requires less than 20 Amps. Before starting the boiler, check to ensure that the proper electrical
service is connected to the boiler.
An external electrical disconnect (not supplied with the boiler) is required. The boiler electrical service must be
installed and grounded in accordance with local codes or in the absence of such requirements, in the U.S. with
National Electrical Codes,
ANSI/NFPA
No. 70 latest edition or, in Canada, to the Canadian Electrical Code, Part I,
CSA C22.1
, latest edition. Installed conduit must not block openings and must allow the side doors to be opened.
3.3.3 Clearances
If the boiler is to be installed near combustible surfaces, the minimum clearances shown in the pictures and
table below must be maintained. Failure to provide for the service access clearances, even with non-combustible
surfaces, may cause future problems servicing the boiler. Maintain a clearance from the vent to combustible
† “C” Space required for pipes, ducts, etc. in this area
above the boiler.
* “B” Clearance depends upon exhaust vent configuration.
** Do not put pipes, ducts, vents, etc in this space.
Electrical conduit must be installed vertically so that the
side doors can be opened. NOTE - Annual maintenance
items can be accessed from the front of the boiler.
Type of Surface
Dimensions (inches)
A
B
C†
D
Combustible Surfaces
Minimum Clearances
30
12*
24
12
Recommended Clearances
for Service Access
30
12*
24
12**
surfaces of 24” or as specified in the vent manufacturer’s listed installation instructions. The boiler must be installed
in a space large in comparison to the boiler as described in the National Fuel Gas Code,
ANSI Z223.1
, latest edition.
The main power connections are connected to the over current safety device rated for a 20 Amp 3 phase circuit
(for either
208-240
or
480 VAC
) and ground terminal located in the main power connection box. This box is located
at the lower front left side of the boiler. The power connection has four points of contact: Terminals 1, 3, 5 and G.
Connect the three wires supplying the three phase power to terminals 1, 3 and 5. Connect the main boiler ground
wire to G.
The internal control transformer may be pre-wired from the factory for operation with
240 VAC
. If
208 VAC
three
phase power is used, the internal control transformer must be wired for operation at this lower voltage. The wire
in terminal
X3
on the load side of the internal control transformer must be moved to terminal
X4
. This supplies the
120 VAC
power to the controls from the
208 VAC
main voltage. Refer to Sections
6.1.4
and
6.1.5
for proper wiring
and configuration of the internal control transformer.
3.4.1 the Power Input Junction Box
Figure 3.3.3
Table 3.3.3
A
→
C
→
B
←
→
←
D
→
←
D
→
←
D