Table of Contents
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H E A T I N G
USER
INSTRUCTIONS
POD HIU
When replacing any part on this appliance, use only spare parts that you can be assured conform to the safety and performance
specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal Heating.
For the very latest copy of literature for specification and maintenance practices visit our website idealheating.com
where you can download the relevant information in PDF format.
April 2021
UIN 224647 A01
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Table of Contents
Summary of Contents for Ideal Heating POD HIU
- Page 1 When replacing any part on this appliance, use only spare parts that you can be assured conform to the safety and performance specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal Heating.
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Page 2: Table Of Contents
CONTENTS 1. Introduction ............3 1.1 Safety ............3 1.2 Electrical Supply ..........3 1.3 Important Notes ...........3 2. HIU Operation..........4 3. System Water Pressure .........6 4. General Information ........7 5. Points for the HIU User........7 6. Troubleshooting ..........8 7. Display Functions - Normal Operation...8 8. -
Page 3: Introduction
Health & Safety Document No. 635. The Electricity at Work Regulations, 1989. The Ideal POD HIU is a wall mounted, electronically controlled Heat Interface Unit (HIU) for use with district or community It is essential that the instructions in this booklet are strictly heating systems, available in Indirect or Direct models. -
Page 4: Hiu Operation
HIU OPERATION CONTROLS DIAGRAM Legend A. Reset Button B. - Function Button C. + Function Button D. Menu Button E. HIU Status Display F. CH System Pressure Gauge (Indirect Only) G. Heat Meter (Optional) TO START THE HIU If a programmer is fitted refer to separate instructions for the programmer before continuing. Start the HIU as follows: To switch the domestic hot water and central heating on and off or adjust the target temperatures use the Menu button (D) to navigate the status display (E). - Page 5 Press the Menu button again to access the CH target temperature setting menu. ºC The CH target temperature can now be adjusted by pressing the +/- buttons within the installer defined limits. Note: If using underfloor heating ensure CH target temperature is within the safe operating temperature for the underfloor heating.
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Page 6: System Water Pressure
CH SYSTEM WATER PRESSURE (INDIRECT MODELS ONY) The system pressure gauge (see page 4) indicates the central Turn isolation valve A to the “fill” position (handle heating system pressure. If the pressure is seen to fall below horizontal). the original installation pressure of 1-2 bar over a period of time Turn valve G to the “fill”... -
Page 7: General Information
GENERAL INFORMATION HIU PUMP (INDIRECT ONLY) CLEANING The HIU pump will operate briefly as a self-check once every For normal cleaning simply dust with a dry cloth. To remove 24 hours, regardless of system demand. stubborn marks and stains, wipe with a damp cloth and finish off with a dry cloth. -
Page 8: Troubleshooting
TROUBLESHOOTING CCV = Credit Control Valve No Hot Water or No Hot Water No Central Heating Central Heating Check the mains Check the mains Check the mains power is turned power is turned power is turned on and if a CCV is on and if a CCV is on and if a CCV is installed the HIU has... - Page 9 DISPLAY FUNCTIONS - NORMAL OPERATION MODE CONT’D ºC Summer Mode, DHW enabled with heat demand: HOT WATER PREHEAT Winter Mode, DHW and CH enabled, no heat demand: HOT WATER PREHEAT ºC Winter Mode, with DHW heat demand: HOT WATER PREHEAT ºC Winter Mode, with CH heat demand: HOT WATER...
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Page 10: Display Functions - Fault Messages
DISPLAY FUNCTIONS - FAULT MESSAGES Display Fault Action Check system water pressure is between 1 and 1.5 bar on the system Low Water pressure gauge. To re pressurise the system see section 3. If HIU Pressure continues to show fault, please contact Ideal (if under warranty) or contact a suitable qualified service engineer. - Page 11 DISPLAY FUNCTIONS - FAULT MESSAGES CONT’D Display Fault Action Primary Thermistor Reset the appliance – If HIU continues to show fault please contact Fault Ideal (if under warranty) or contact a suitable qualified service engineer. HOT WATER PREHEAT Unconfigured/Faulty PCB. Please contact Ideal (if under warranty) or PCB Fault contact a suitable qualified service engineer.
- Page 12 At Ideal Heating we take our environmental impact seriously, therefore when installing any Ideal Heating product please make sure to dispose of any previous appliance in an environmentally conscious manner. Households can contact their local authority to find out how.