Central Heating System Connections - Combi - ECR International Utica Boilers MAH-125 Installation, Operation And Maintenance Manual

9.2 Central Heating System Connections - Combi

MAC-150 COMBI
MANIFOLD
MAC-150/205
9 - START UP PROCEDURE
H
A Pressure Gauge
B Pressure Relief Valve
C Heating return connection
Cold DHW inlet tap / system filling
D
connection for Combi
E
Gas shutoff connection
F Boiler Fast Fill
DHW outlet/indirect storage tank
G
connection
H Drain connection for condensate
I
Heating supply connection
5 gpm DHW flow restrictor
K
(Factory installed) (205 only)
41
MAC-205 COMBI
G
B
A
I
LEGEND
240011941 REV G, [06/30/2019]
K
D
C
E
150 205
-
30.00 psi [2.11 bar]
3/4" [22.2 mm] 1" [25.4 mm]
1/2"
3/4" NPT
[15.9 mm]
3/4" [22.2 mm]
External to Boiler NA
1/2"
3/4" NPT
[15.9 mm]
13/16" [21 mm] ID
3/4 NPT
Hose
3/4" [22.2 mm] 1" [25.4 mm]
3/4"
na
[22.2 mm]