ECS Upgrade for SW Double Wall Heaters, Kits 27035, 27036, 27037
Technical Instruction Document
TID-0142_0A
12/30/2014
AERCO International, Inc.
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100 Oritani Dr.
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Blauvelt, New York 10913
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Phone: 800-526-0288
Page 11 of 24
Figure 2-4: Lower Assembly, with Part Numbers
4. Attach assembly to 2” Union so that upright is perpendicular to the ground.
5. Obtain the following from kit:
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3” Tee for Hot Water Outlet (22102) x1
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1.5” x 11.5” Nipple (90075) for SWDW24,
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1.5” x 12.5” Nipple (90076) for SWDW45 or
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1.5” x 13.5” Nipple (90077) for SWDW68
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1.5” Union (93265)
6. Attach 3” Tee to the unit’s hot water outlet flange.
7. Attach nipple to the 3” Tee
8. Attach union to nipple
9. Obtain the following from kit:
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1.5” Street elbow (12614-8)
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1.5” Tube x 1.5” Male NPT adapter (97049) x2
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1.5” Copper tube (91045-45.00)
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1.5” Flange w/ 2 3/8” x 16 bolts and nuts (59095) set hardware aside for use in Step 17
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1.5” Taco Circulator Cartridge (69101)—for measurement purposes
10. Braise one (1) 1.5” tube x 1.5” male NPT adapter to one end of tube.
11. Attach street elbow to 1.5” male NPT
12. Check for length—Size to accommodate the installation of the pump (69101) and the flange
adaptor (59095)
13. Cut 1.5” copper tube to length
14. Braise one (1) 1.5” tube x 1.5” male NPT adapter to other end of tube.
15. Attach flange to 1.5” male NPT adapter
