Installation Of Comfort Valve - Grundfos ALPHA CS Installation And Operating Instructions Manual

6.4 Installation of Comfort Valve

Do not use Teflon tape, pipe joint
compound or pipe dope on the valve
threads.
Tighten the flex hose connections, plus
1/4 turn with a wrench. Overtightening
the flex hose connections can result in
valve damage, causing the valve to
leak and/or localized water damage.
When making pipe connections, be
sure to follow the pipe manufacturer's
recommendations and all code
requirements for pipe material.
By plumbing convention, the hot water
is on the left side and the cold water on
the right side, when looking at the sink.
Your pipes may be different.
6.4.1 Valve location
For the greatest effect, Comfort Valve must be
located at a faucet with the greatest pipe distance
from the hot-water heater. If a household consists
of more that one hot-water pipe string, one
Comfort Valve must be mounted in each string.
6.4.2 Disconnecting the risers
1. Close both the hot-water and cold-water angle
stop valves below the sink.
Hot-water
angle stop valve
2. Disconnect the risers.
Risers
6.4.3 Installing the thermal bypass valve
Mounting hardware is not included.
1. Connect the 1/2" × 1/2" flex hoses to the ports
on the thermal bypass valve marked HOT
OUT and COLD OUT.
12
Cold-water
angle stop valve
2. Connect the 1/2" × 3/8" flex hoses to the ports
on the thermal bypass valve marked HOT IN
and COLD IN.
3. Connect the 1/2" hose fitting from the HOT
OUT port on the thermal bypass valve to the
left side of the faucet.
4. Connect the 1/2" hose fitting from the COLD
OUT port on the thermal bypass valve to the
right side of the faucet.
5. Connect the 3/8" hose fitting from the HOT IN
port on the thermal bypass valve to the left
angle stop valve.
6. Connect the 3/8" hose fitting from the COLD
IN port on the thermal bypass valve to the
right angle stop valve.
7. Open both hot-water and cold-water angle
stop valves. Check for leaks.
To the faucet
HW CW
1/2" x 1/2"
HW OUT
1/2" x 3/8"
HW IN
Connection of thermal bypass valve, flex hoses
and fittings
8. The thermal bypass valve may be mounted to
the wall with screws if desired.
Correct installation of thermal bypass valve
(mounting hardware not included)
1/2" x 1/2"
CW OUT
1/2" x 3/8"
CW IN