Install Instructions

ManualsBrandsMr. PEX ManualsHeating SuppliesG1-1/4" Flat Gasket Male/Female Union Elbow Kit (Pack of 2)

The MrPEX® Stainless Steel manifolds have a G3/4” Eurocone (EK20) loop connecons.

To connect PEXa and PEX-AL-PEX pipes, use the appropriate MrPEX® compression ngs that t our

manifolds. See MrPEX Part Catalog.

Start by making a square cut at the end of the tube even with the

boom of the manifold outlet nipple (without the ng) using a

suitable tubing cuer. If PEX-AL-PEX Tubing is used, also ream the

tubing by using our reaming tool.

For compression pre-assembled ngs the assembly steps are:

1 - Slide on the nut with pre-assembled compression ring on the pipe

2 - Put the insert into the end of the pipe and push it all the way in

unl it stops. Insert should be fully inserted into the pipe

3 - Push the insert into the manifold connecon seat making sure the O-ring doesn’t get caught.

4 - Holding the tubing straight and in place, slide up the compression nut and thread it onto the

manifold connecon. Tighten nut with suitable wrench. The tubing will relax slightly under the

pressure, so the ng needs to be ghtened a second me aer about 20 to 30 minutes to ensure

ghtness

Connecng the pipes to the manifold

Position Position Description

MrPex electrothermal actuator 24V AC 2-wire

Manifold Ball Valves, supply & return, straight, w/ thermometer, spare part

Thermometer, spare part

1" BSP Manifold Connection X G 1-1/4" Union Flat Gasket, spare part

Flat Gasket 1-1/4", spare part

Flowmeter for manifold series 325XXX and 332XXX, spare part

Manual Air Vent, spare part

1-1/4" Manifold Bracket for manifold series 325XXXX, spare part

Plastic Valve Cap, spare part

Fill/Drain Valve for manifold series 325XXXX and 332XXXX, spare part

G 1-1/4" Flat Gasket X 1" Female NPT Straight Fitting Kit

G 1 1/4 Flat Gasket X G 1 1/4 Flat Gasket Union Elbow Kit

Plastic Adapter for electrothermal actuator 5120701

MrPex electrothermal actuator 24V AC 4-wire w/ End Switch

5120701

3250018

3250001

3250002

3761175

3741172

3740011

3741171

3741173

3741174

3740002

3250010

3250007

***

5700010

5120700

Each

Set of 2

Each

Set of 2

Each

Set of 2

Each

Set of 2

Each

Quick connection

1" NPT X G 1-1/4" Flat Gasket

32 ˚F to 175 ˚F

Rubber EPDM 60 SH

0 to 2 GPM

Threaded M30x1.5 - Blue

Threaded M30x1.5

3/4" GHT

For sizes 3/8" - 1/2" - 5/8"

Threaded M30x1.5 - Type VA10

Quick connection

Type Unit