Ref
Checklist
Remarks /Notes
1
System filled and no leaks found. Primary pipework has been flushed and is
clean. Note that the PICV must be powered shut, i.e. the controller is powered
up and turned OFF. Open the integral bypass valve, flush, and afterwards check
the strainer for any debris. Alternately remove the strainer mesh before
flushing, then replace after the flushing procedure.
As per
ICOM guide to
water treatment.
2
All Strainers are clean. Inside the HIU and on the incoming cold water main.
A strainer to 800 micron may be installed in the central heating system, to
comply other component suppliers (pumps, plate heat exchangers etc) best
practice guide.
Amendment 26.11.19
3
Check in
-
coming water main pressure and flow rate meets the requirement of
the HIU specification.
4
Check the safety valve discharges by twisting the cap.
Check the safety valve re
-
seats and seals.
Check the discharge pipework for leaks and conformity to regulations.
5
All valves in the Central heating circuit are in the correct position. All valves in
the Cold water mains supply are in the correct position.
6
Check the settings on the circulation pump are set to meet the requirement of
the central heating design.
VARIABLE SPEED FOR RADIATORS or FIXED SPEED FOR UNDERFLOOR HEATING
7
Check the manual bypass is
CLOSED
.
The bypass is only opened under authorised design conditions, and is supplied
LOCKED in the closed position.
8
Check all pipes for insulation and are to the requirement of current building
regulation. Check all pipes are secured and fastened with adequate pipe clips.
9
Check wiring and earth connections are correct.
10
Power supply is available. Casing is secure, all electrical connections are safe
and conform to current wiring regulations
11
Switch ON power supply to the unit.
Follow instructions as written in section:
‘
Operating Instructions
’.
12
If required to change any of the factory settings follow instructions in separate
document:
‘
Installer level Settings–
Parameter Reference Table
’
13
For Underfloor Heating installations check the central heating flow
temperatures to the pipes into the floor circuits are as specified by the system
designer!
14
Check the heating by adjusting the room thermostat to call for heating, and
check rooms reach temperature
15
Check all hot water outlets in turn to validate correct operation and supply of
hot water. When complete and all taps off, check that the Room thermostat is
still calling for heat, and that the HIU reverts to Heating Mode.
16
Return Room Thermostat to its
‘
normal setting
’
(20C for example), and wait
unit this room temperature reaches this set point. HIU goes back to standby.
Secure the HIU casing as required by the landlord and checklist complete
SECTION 6
-
Commissioning HIU CHECK LIST
‘
Installer Level Settings
’
See Document :
11/19 E & OE
Summary of Contents for Hiper Xi45 INDIRECT HIU 45DHW/10HTG
Page 28: ...09 17 E OE ...
