CENTRAL HEATING Chofu - Default Chapter; Table of Contents

Page: 3 of 15
This document must be read in association with the Chofu Installation Manual provided with the unit. It is essential the
manual is read and followed to ensure the installation is as per manufacturer’s criteria. The purpose of this document
is to assist with the commissioning of the heat pump parameters and the connection of third party controls.
Pre-Commissioning
Pre-Commissioning Checks ....................................................................................................................................................................................... 4
Filling the System with Water ....................................................................................................................................................................................4
Heat Pump Controller ...................................................................................................................................................................................................5
Room Thermostat Connection
Room Thermostat Connection ................................................................................................................................................................................. 6
Heating and Cooling changeover ...........................................................................................................................................................................6
Heat Pump Controller Settings
Heat Pump Controller Settings .................................................................................................................................................................................7
System Conguration
System A: Heat Pump Switched On/O by Room Thermostat(s) Heating Only ...................................................................................8
System B: Heat Pump Switched On/O by Room Thermostat(s) + DHW, Heating Only ..................................................................9
System C: Heat pump Switched On/O by Room Thermostat(s) Heating & Cooling ......................................................................10
System D: Heat Pump Switched On/O by Room Thermostat(s) + DHW, Heating & Cooling ..............................................11-12
System Operational Checks
Checking Sensor Values .............................................................................................................................................................................................13
Resetting Errors
Resetting Errors ..............................................................................................................................................................................................................14
Additional Information
Additional Information ...............................................................................................................................................................................................14
Commissioning Guide
Contents