Lochinvar CH 100 CE, Installation, Commissioning, User & Maintenance Instructions

Page: 25 / 66

Instruction manual CH 25
is
3.6.5 Circulation pipe
See (C) in the installation diagram (3.5 "Installation diagram") .
If an immediate flow of hot water is required at draw-off points, a circulation
pump can be installed. This improves comfort, and reduces water wastage.
1. Fit a circulation pump (6) of the correct capacity for the length and resistance
of the circulation system.
2. Fit a non-return valve (5) after the circulation pump to guarantee the
direction of circulation.
3. Fit two stop valves for servicing (4).
4. Connect the circulation piping to the T-piece on the drain valve (9) as per the
drain valve diagram (3.6.4 "Drain valve") .
3.7 Vented water
connections Warning
The installation should be carried out by a competent person, in compliance
with general and locally applicable regulations (1.3 "Regulations") .
3.7.1 Cold water side
See (A) in the installation diagram (3.5 "Installation diagram") .
1. Fit an approved stop valve (4) on the cold water side between the cold water
head tank (18) and the water heater, as required by applicable regulations.
3.7.2 Shunt pipe
You can connect a top to bottom circulation pump to prevent stacking of the
water in the water heater.
1. Optional: Depending on the draw-off pattern, fit a shunt pipe (Ø 22 mm), a
stop valve (11) and a top-to-bottom circulation pump (7).
2. Fit a non-return valve (5).
3. Fit a stop valve (11).
C
IMD-0122 R1