Gas Connection - Lochinvar CHA 100 G CE Installation, Commissioning, User & Maintenance Instructions

3
3.7.4
3.7.5
3.8

Gas connection

24
Installation
Drain valve
1. Fit the standard drain valve supplied (9).
2. If desired, fit a circulation pipe
Otherwise, fit the sealing nut and gasket (C) supplied with the drain valve,
as per the diagram.
C
IMD-0122 R1
Circulation pipe
See (C) in the 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
Warning
The installation should be carried out by a competent person, in compliance
with general and locally applicable regulations
Note
Make sure that the diameter and length of the gas supply pipe are large
enough to supply sufficient capacity to the water heater.
See (D) in the installation diagram
1. Fit a manual gas valve (10) in the gas supply pipe.
2. Blow the gas pipe clean before use.
3. Close the manual gas valve.
4. Fit the gas supply pipe to the gas control valve.
Warning
After fitting, check for leaks.
(3.6.5 "Circulation pipe").
(3.5 "Installation diagram").
valve").
(1.3 "Regulations").
(3.5 "Installation diagram").
Instruction manual CHA
is