36
Installation and Servicing
Section 2 - Installation
INST
ALLA
TION
WATER CIRCULATION SYSTEM
1.
With the system COLD, check that the initial pressure is
correct to the system design requirements.
For pre-pressurised systems, this should be 1.0 bar.
2.
With the system HOT, examine all water connections
for soundness. The system pressure will increase with
temperature rise but should not exceed 2.5 bar.
3.
With the system still hot, turn off the gas, water and
electricity supplies to the boiler and drain down to
complete the flushing process.
Note.
A flushing solution should be used during the flushing
procedure. Flushing solutions: Fernox Superfloc, Sentinel
X300 (new systems) or X400 (existing systems).
4.
Refill and vent the system, add inhibitor (Refer to section
1.20), clear all air locks and again check for water
soundness.
5.
Reset the system initial pressure to the design
requirement.
6.
Balance the system.
7.
Check the condensate drain for leaks and check that it is
discharging correctly.
8.
Finally, set the controls to the User’s requirements.
WATER TEMPERATURES
Temperatures can be selected using the Temperature Knob
(A)
No Outside Sensor Outside Sensor
Connected
Temp Knob Setting
CH Flow
Nominal Room
Temp
o
C
Temp.
o
C
Max 80 30
Min
30
10
2.33
GENERAL CHECKS CONT. - WATER CIRCULATION
Refer to Section
1.20
Refer to Section
1.21
2.34 RESTART PROCEDURE
If an L code is shown on the display then the boiler can be restarted by pressing the Restart button (E).
Legend
A. Temperature Knob
B. Mode Button
C. Boiler Status Display
D. Burner On indicator
E. Restart Button
C
A
B
D
N
E
Содержание LOGIC HEAT2 H12
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