Central Heating System Connections - Combi - ECR International Utica Boilers MAH-100 Installation, Operation & Maintenance Manual

9.2 Central Heating System Connections - Combi

MAC-115 & 150 COMBI
H
B
A
I
MANIFOLD
MAC-115, 150 & 205
9 - START UP PROCEDURE
F
E
C
D
G
J
H
B
A
I
LEGEND
A Pressure Gauge
B Pressure Relief Valve
C Heating return connection
Cold DHW inlet tap / system filling connection
D
for Combi
E
Gas shutoff connection
F Boiler Fast Fill
G
DHW outlet/indirect storage tank connection
H Drain connection for condensate
I
Heating supply connection
J
Manifold
5 gpm DHW flow restrictor
K
(Factory installed) (205 only)
48
MAC-205 COMBI
K
G
D
E
115 & 150
30.00 psi [2.11 bar]
3/4" [22.2 mm]
1/2"
[15.9 mm]
3/4" [22.2 mm]
External to Boiler
1/2"
[15.9 mm]
13/16" [21 mm] ID
Hose
3/4" [22.2 mm]
1-1/4" (6.35 mm)
na
240013354 REV A [07/01/2021]
C
205
-
1" [25.4 mm]
3/4" NPT
NA
3/4" NPT
3/4 NPT
1" [25.4 mm]
NA
3/4"
[22.2 mm]