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Part number 550-100-260/0520
13
ECO
®
Tec
GAS-FIRED WATER BOILER – 80/110/150/199 BOILER MANUAL
1 Boiler Out (Supply) connection, (male, 1" NPT )
1a Air Elimination/Relief Valve Connection Water Pipe, (male, 3/4" NPT) use for relief vale and air elimination.
2 Boiler In (Return) connection, (male, 1" NPT ).
3 Boiler relief valve, shipped loose with boiler — .
3a Install a ¾" NPT cap in the Air Elimination/Relief Valve Connection Water Pipe.
.
4 Pressure/temperature gauge, shipped loose with boiler.
5a Reducing tee, NPT, 1 " x 1 " x ¼" on 80/110, & 1 ¼" x 1 ¼" x ¼" on 150/199, shipped loose with boiler.
5b Reducing tee, NPT, 1 " x 1 " x ¾" on 80/110, & 1 ¼" x 1 ¼" x ¾" on 150/199, shipped loose with boiler.
7 Bushing, NPT, 1 ¼" x 1", shipped loose with boiler (150/199 only).
8 Nipple, NPT 1" x close on 80/110, & 1 ¼" x close on 150/199, by installer .
9 Isolation valve on supply connection, by installer (1" NPT on 80/110, 1¼" NPT on 150/199).
10 Isolation valve on return connection, by installer (1" NPT on 80/110, 1¼" NPT on 150/199).
11 ¾" NPT boiler drain valve, shipped loose with boiler — after hydrostatic testing, move drain valve to lowest point on the return piping if not
already there.
12 Auto air vent, by installer.
13 Bushing, NPT 3/4", by installer.
14 Tee, NPT 3/4" x 3/4" x 3/4", shipped loose with boiler.
15 Street elbow, NPT 3/4" x 3/4", shipped loose with boiler.
Boiler hydrostatic test (continued)
Install pipe fi ttings for relief valve and
pressure/temperature gauge —
(see legend below)
Install piping components required for
hydrostatic test (see legend below)
(&27HF
Boiler In
Boiler Out
1
4
5a
Recommended but
not included
3a
2
11
1a
(&27HFD
(150/199 only)
Recommended but
not included
8
8
11
9
10
7
7
(150/199 only)
5b
(&27HF
1a
3
15
14
12
13
Recommended piping after
hydrostatic test
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