Instruction manual ADMR
47
gis
6
Draining
6.1
Draining unvented
installations
Installation diagram
Some service activities require the appliance to be drained. The procedure is as
follows:
1. Activate the
MENU
with
.
2. Position the cursor in front of
OFF
.
3. Confirm
OFF
with
.
4. Switch the appliance
OFF (position 0) using the ON/OFF switch on the
control panel.
5. Isolate the water heater from the power supply by putting the isolator
between the appliance and the mains power supply to position 0.
6. Shut off the gas supply (10).
7. Close the stop valve (11) in the hot water pipe.
8. Close the supply valve (4) in the cold water supply (A).
9. Open the drain valve (9).
10. Bleed the appliance (or installation) so that it drains completely.
Legend
Only applicable numbers are
mentioned.
1. pressure reducing valve
(mandatory)
3. T&P valve (mandatory)
4. stop valve (recommended)
5. non-return valve (mandatory)
6. circulation pump (optional)
7. top to bottom circulation pump
(optional)
9. drain valve
10. manual gas valve (mandatory)
11. service stop valve (mandatory)
12. temperature gauge
(recommended)
14. hot water draw-off points
15. expansion valve (mandatory)
16. expansion vessel (mandatory)
A. cold water supply
B. hot water supply
C. circulation pipe
D. gas supply
C
4
5
6
4
14
14
14
10
D
B
A
4
5 1
15
16
4
5
7
4
9
11
12
3
IMD-0142 R2
MENU
»OFF
^ ON
È WEEK PROGRAM
Содержание ADMR-115
Страница 4: ...4 Instruction manual ADMR gis...
Страница 8: ...Table of contents 8 Instruction manual ADMR...
Страница 12: ...Introduction 12 Instruction manual ADMR 1 gis...
Страница 38: ...Installation 38 Instruction manual ADMR 3 is...
Страница 56: ...Shutting down 56 Instruction manual ADMR 10 gis...
Страница 64: ...Main menu 64 Instruction manual ADMR 11 gis...
Страница 78: ...is Instruction manual ADMR 78...
Страница 80: ...Maintenance frequency 80 Instruction manual ADMR 14 is...
Страница 86: ...Performing maintenance 86 Instruction manual ADMR 15 s...
Страница 94: ...Appendices 94 Instruction manual ADMR 17 is...
Страница 96: ...Instruction manual ADMR 96...