SC/SCT
Gas/Oil Boilers
Series
Oil, Gas &
Installation,
Operation &
Maintenance
Manual
INSTALLATION INSTRUCTIONS – SERIES SC AND SCT
1— Read carefully, study these instructions before beginning work.
2— This boiler must be installed by a qualified contractor.
3— The boiler warranty can be voided if the boiler is not installed, maintained and serviced correctly.
4— The equipment shall be installed in accordance with those installation regulations in force in the local area where the installation is to be made.
These shall be carefully followed in all cases. Authorities having jurisdiction shall be consulted before installations are made.
A – ACCESSIBILITY CLEARANCES
1— To provide for reasonable conditions of accessibility for servicing, the following minimum clearances are recommended between the boiler and
adjacent walls or other appliances—24" on the right side, 36" on the left side, and 30" in the front and rear of the boiler.
B – AIR FOR COMBUSTION AND VENTILATION
1— Be certain adequate facilities are available to provide air for satisfactory combustion and ventilation.
2— Appliances Located in Unconfined Spaces.
a. Installations in unconfined spaces with conventional construction and large areas such as basements, the supply of air for combustion and
ventilation can usually be considered adequate.
3— Appliance Located in Confined Spaces
a. If all air for combustion and ventilation is to come from within the building, two openings, one near the ceiling and one near the floor of the boiler
room shall be provided with the minimum free area of each opening equal to 140 sq. in. per gallon of oil burned.
b. If all air for combustion and ventilation is to come from outside the building, two openings, one near the ceiling and one near the floor of the
boiler room shall be provided with the minimum free area of each opening equal to 35 sq. in. per gallon of oil burned.
If ducts are used to convey the air, areas of 35 sq. in. per gallon of oil burned for vertical ducts or 70 sq. in. per gallon of oil burned for horizontal
ducts are to be provided. Ducts shall have the same area as the free area of the openings to which they are connected.
C – SETTING UP BOILER
1— Models SC/SCT-05 and SC/SCT-06 are shipped in a single block. The boiler sections on models SC/SCT-07 thru SC/SCT-10 are shipped in two
parts.
2— Provide a good level foundation, located as close as possible to the center of the heating system and to the chimney or vent system. The heating
surface of the SC/SCT Series Boilers is designed to be cleaned from either the top or left of the unit. Allow adequate clearance on the left of unit if
servicing is to be done from the side.
CAUTION: THIS BOILER IS NOT APPROVED FOR USE ON COMBUSTIBLE FLOORING.
3— Place each block of sections on the foundation with nipple ports facing each other. Refer to Figure 1.
4— Clean nipple ports with an acceptable cleaning solvent to remove protective coating. Make certain there are no burrs around the outside edge of the
ports.
5— Spread a thin coat of TFE-TITE in the nipple ports. Never on nipples.
6— Insert the push nipples. Make certain they are clean and free from burrs.
7— Apply a thin coat of TFE-TITE to the rope groove. Press the Hi Temp Rope into rope groove.
8— Arrange both blocks so that protruding nipples enter the open ports. Care must be taken to keep nipples straight and blocks aligned.
9— Insert draw rods through the nipple ports. Make certain that the 3/4" draw rod is used on the large nipple. Pay particular attention to the placement
of the draw washers. See Figure 1.
10— Before starting draw, oil the threads and between the nuts and washers.
11— Tighten the hex nuts and draw boiler evenly until the small pads on each section just touch.
12— After boiler is drawn, remove draw rods and cut 5" from 6-1/4" threaded end. Insert rod thru the lugs on each end section and tighten the hex nuts
hand tight.
13— Make up water connection to boiler and fill. Check to make certain there is no leakage at the nipple port connection.
14— Remove flue collector and Hi Temp Rope (Items 8 and 9, Figure 4) from carton. Lay rope (Item 8) on top of boiler against bead provided. Place flue
collector on top of rope and attach to boiler with 1/4"-20 x 1-3/4" studs and nuts. Draw down snugly. On Models 05 and 06, remove combustion
chamber cover plate (Item 3) and attach flame observation assembly (Item 4) to Combustion Chamber Cover Plate (Item 3). Remove and discard
round cast iron cover door X-1031 located on the inside of the cover plate.
15— Remove clean-out cover plates and insulation (7). Each clean-out cover plate is attached to the boiler by using two carriage bolts, nuts and
washers (6). Install the carriage bolts into the notch at the top and bottom of each clean-out opening, then secure them with a flat washer and steel
nut as shown in Figure 2 locking them into place. Press the clean-out plate with insulation over the protruding carriage bolts until the bolts punch
through the insulation so a flat washer and brass nut can be installed. Tighten down nuts snugly compressing the insulation to form a good seal
around the clean-out opening.
1
2
FIGURE 1
FIGURE 2
D - JACKET ASSEMBLY
1— Refer to Page 4 for exploded view. Attach the back jacket panel (19) to bosses on middle of back section with two 1/4" x 3/8" truss
head machine screws (20) provided. The back panel has two 5/16" dia. holes close to the center of the panel.
2— Locate ceramic blanket liner and install in combustion chamber floor, placing back edge of blanket against bottom edge of target wall.
3— Place the front jacket panel (23) on the block and attach the combustion chamber cover plate assembly (3).
4— Attach the right side jacket panel (22) to the front and back panels with sheet metal screws.
NOTE: ON SERIES SCT BOILERS, THE OPTIONAL WATER HEATER (17) MUST BE INSTALLED BEFORE THE LEFT SIDE
JACKET PANEL IS ATTACHED.
5— If water heater is used, remove knock out piece in left side jacket panel (21) before installing. Attach left side jacket panel in the
same manner as the right side panel.
6— Attach the top panel. The top is made in two pieces (24 & 25). Join the two pieces together with sheet metal screws. Secure top
panel to front, back and sides with sheet metal screws.
7— Water Heater
a. Series SC Water Boilers - See chart below for ratings and usage.
Install Water Heater (13) when required, in large opening in front of boiler. See Figure 3 for suggested piping.
b. Series SCT Steam Boilers - See chart below for ratings.
Install Water Heater (17) when required in large opening in back section. See Figure 3A for suggested piping.
Tankless Water Heater Ratings
BOILER
MODEL
NUMBER
HEATER NO.*
X-1020 – G.P.M.
HEATER NO.*
X-1021 – G.P.M.
HEATER NO.*
X-1022 – G.P.M.
HEATER NO.
X-1082 – (Steam)
SC/SCT-05 4.75 — — 4.75
SC/SCT-06 5.0 6.0 — 5.00
SC/SCT-07 5.25 6.5 — 5.25
SC/SCT-08 5.5 7.0 10.0 5.50
SC/SCT-09 5.75 7.5 11.0 5.75
SC/SCT-10 6.0 8.0 12.0 6.00
Water heater ratings are based on intermittent demand—40°F to 140°F with 200°F boiler water
temperature. *Used on water boilers only.
3
DANGER: Install mixing valve in hot water supply piping. Water temperature over 125°F can cause severe burn instantly or death from scalds.
FIGURE 3 FIGURE 3A
When water heater is not employed, cover the heater opening with cover plate (12) or (16).
BE SURE RUBBER GASKET IS IN PLACE BETWEEN COVER PLATE OR WATER HEATER PLATE AND BOILER SECTION.
4
FIGURE 4
SERIES SC/SCT
5
Model No.
Item No. Description Part No. SC/SCT-05 SC/SCT-06 SC/SCT-07 SC/SCT-08 SC/SCT-09 SC/SCT-10
1
Block Assembly – SC-05 Model Only X-1096 X
Block Assembly – SC-06 Model Only X-1096-1 X
Block Assembly – SCT-05 Model Only X-1097 X
Block Assembly – SCT-06 Model Only X-1097-1 X
Front Split Block Assembly SC-1018 X X X
Front Split Block Assembly SC-1018-1 X
Back Split Block Assembly SC-1019 X
Back Split Block Assembly SC-1019-1 X
Back Split Block Assembly SC-1019-2 X X
Back Split Block Assembly (SCT Model) SC-1020 X
Back Split Block Assembly (SCT Model) SC-1021-1 X
Back Split Block Assembly (SCT Model) SC-1021-2 X X
2 Target Wall X-3019 X X X X X X
3 Combustion Chamber Cover Plate X-1060-1 X X X X X X
4 Flame Observation Assembly SC-1012 X X X X X X
5 5/16"-18 x 2-1/4" Studs w/Nuts – 5 Req'd X-1061 X X X X X X
6 5/16"-18 x 1-3/4" Carriage Bolt w/Nut X X X X X X
7 Side Clean-Out Cover Plate X-1085 X X X X X X
8
High Temp. Rope 1/2" Dia. 64" Long X
High Temp. Rope 1/2" Dia. 72" Long X
High Temp. Rope 1/2" Dia. 80" Long X
High Temp. Rope 1/2" Dia. 88" Long X
High Temp. Rope 1/2" Dia. 96" Long X
High Temp. Rope 1/2" Dia. 104" Long X
9
Flue Collector and Damper Assembly SC-5005-5 X
Flue Collector and Damper Assembly SC-5005 X
Flue Collector and Damper Assembly SC-5005-1 X
Flue Collector and Damper Assembly SC-5005-2 X
Flue Collector and Damper Assembly SC-5005-3 X
Flue Collector and Damper Assembly SC-5005-4 X
10 1/4"-20 x 1-3/4" Studs w/Nuts – 2 Req'd X-5000 X X X X X X
11 Rubber Gasket X-1023 X X X X X X
12 Cover Plate X-1059 X X X X X X
13
Tankless Coil (Optional Water Only) X-1020 X X X X X X
Tankless Coil (Optional Water Only) X-1021 X X X X X
Tankless Coil (Optional Water Only) X-1022 X X X
14 3/8"-16 x 3/4" Hex Hd. Cap Screws - 6 Req'd X X X X X X
15 Rubber Gasket (SCT Models) X-1083 X X X X X X
16 Cover Plate (SCT Models) X-1084 X X X X X X
17 Tankless Heater (Optional SCT Models) X-1082 X X X X X X
18
3/8"-16 x 3/4" Hex Hd. Cap Screws
(SCT Models) – 8 Req'd
X X X X X X
19 Back Jacket Panel SC-6003 X X X X X X
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