User Instructions; Commissioning Record; Flow Performance; Operational Faults - Ecodan 150 Standard Installation And Servicing Instructions

USER INSTRUCTIONS

WARNINGS
IF WATER ISSUES FROM THE TEMPERATURE/PRESSURE RELIEF VALVE ON THE PRE-PLUMBED CYLINDER,
SHUT DOWN THE HEAT PUMP AND IMMERSION HEATER. DO NOT TURN OFF ANY WATER SUPPLY. CONTACT A
COMPETENT INSTALLER FOR UNVENTED WATER HEATERS TO CHECK THE SYSTEM.
DO NOT TAMPER WITH ANY OF THE SAFETY VALVES FITTED TO THE PRE-PLUMBED CYLINDER. IF A FAULT IS
SUSPECTED, CONTACT A COMPETENT INSTALLER.

COMMISSIONING RECORD

Please ensure that the installer has fully completed a Commissioning Checklist and Record for the installation and that you
have signed it to say that you have received a full and clear explanation of its operation. The installer is legally required to
complete a commissioning checklist as a means of complying with the appropriate Building Regulations (England and Wales).
All installations must be notified to Local Area Building Control either directly or through a Competent Persons Scheme. A
Building Regulations Compliance Certificate will then be issued to the customer who should, on receipt, write the Notification
Number on the Commissioning Checklist.
This product should be serviced regularly to optimise its safety, efficiency and performance. The service engineer should
complete the relevant Service Record document after each service.
TEMPERATURE CONTROLS IMMERSION HEATER
The hot water storage temperature is set on the Programmer, the water temperature is sensed by means of a thermistor sensor
located in a pocket on the immersion heater assembly. This should be set to give a water storage temperature of approx. 55°
to 60°C. The immersion heater assembly is also fitted with an over-temperature cut-out. Access to the temperature sensor
and over-temperature cut-out can be made by opening the immersion heater cover - DISCONNECT THE ELECTRICAL
SUPPLY BEFORE OPENING THE COVER.
DO NOT bypass the thermal cut-out(s) in any circumstances.
HEATING BY HEAT PUMP
The space heating control temperature and the operating times for heating and hot water are set using the remotely mounted
controller. The optimum temperatures and times will have been set during commissioning. Should the temperatures or timings
need to be altered, refer to the installation and user instructions leaflet supplied with the controller for the method of adjustment.

FLOW PERFORMANCE

When initially opening hot outlets a small surge in flow may be noticed as pressures stabilise. This is quite normal with
unvented systems. In some areas cloudiness may be noticed in the hot water. This is due to aeration of the water is quite
normal and will quickly clear.

OPERATIONAL FAULTS

Operational faults and their possible causes are detailed in the Fault Finding section (page 36) of this manual. It is recommended
that faults should be checked by a competent installer.
The air volume within the expansion vessel will periodically require recharging to ensure expanded water is accommodated
within the unit. A discharge of water INTERMITTENTLY from the expansion valve will indicate the air volume has reduced to
a point where it can no longer accommodate the expansion.
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