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Installation & Commissioning Instructions
for Digital or Manual controller
HEX390
HEX390 Domestic Ventilation System
with Heat Exchanger
Balanced Pressure Ventilation
Supply Air
Return Air
Exhaust Air
Outside Air
HEX390 Heat Exchange unit
v3.1.762
HEX390 Installation & Commissioning Instructions September 2016
1
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Table of Contents
Related Manuals for Smooth-Air HEX390 Series
Summary of Contents for Smooth-Air HEX390 Series
- Page 1 Installation & Commissioning Instructions for Digital or Manual controller HEX390 HEX390 Domestic Ventilation System with Heat Exchanger Balanced Pressure Ventilation Supply Air Return Air Exhaust Air Outside Air HEX390 Heat Exchange unit v3.1.762 HEX390 Installation & Commissioning Instructions September 2016...
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Page 2: Table Of Contents
Contents HEX390 Warranty Pre-checks & Recommendations Technical Data Kit Contents Installation Instructions Hex Digital Wiring Schematic Wiring schematic - Manual 3speed switch Wiring schematic - Digital controller Installer’s recommended settings: Trouble Shooting Digital Controller - Commissioning Instructions Digital Controller - Commissioning Instructions - Menu Options 14-15 User Operating Instructions HEX390 Warranty... -
Page 3: Pre-Checks & Recommendations
Please Note: These installation and commission instructions are merely a set of guidelines for effective installation and setup of the system to yield maximum performance. Actual installation may vary due to the vast variety of the house architecture and climates. Ensure you fully understand this manual and plan ahead before commencing the work. -
Page 4: Technical Data
Technical Data HEX390 unit Air Flow (max) 390 m / hr (110 l/s) Sensible Effectiveness (max) (approx) Dimensions (mm) 400 x 400 x 850 Weight 20.75 Kg Filter (replaceable) Duct connection equivalent diameter 200 mm Electrical Rated Voltage 220-240 VAC Rated Wattage 240W Fan Fuse... -
Page 5: Kit Contents
Kit Contents HEX Exchanger Body 16mmx 5m drain tube and fitting Digital controller Kit Manual controller kit Hanging wire and fittings Supply 200mm swirl diffuser + Adaptor 150mm circular cone diffuser 200mm x 6m Silentflex 200mm x 3m Silentflex 150mm x 3m Silentflex 200/200/200 ’Y’... -
Page 6: Installation Instructions
Installation Instructions General Layout 150mm Cone Diffuser 200mm Circular Eggcrate 200mm Swirl Diffuser 200mm Circular Eggcrate 200mm x 6m silent 200mm x 3m insulated 150mm x 3m silent 200mm x 3m 200mm x 3m insulated 200mm x 3m silent silent 150mm x 3m silent 200mm x 3m... - Page 7 Drain installation Securely attach the provided drain adaptor (located inside HEX filter cover) to the bottom of HEX unit. HEX unit must be level. Run the drain tubing from the adaptor to outside with a “P trap”, Bottom of unit as illustrated.
- Page 8 Installation Instructions (continued) Attic control box Attic box can be mounted on or near the unit. Terminate separately the grey & brown wires from the HEX unit HEX Attic box Wall Controller In-line Duct Heater (for digital model only) Digital or manual 3 speed controller (located If installing HT or HT15, ensure the duct heater inside the attic box for transportation and is securely installed horizontally and ensure the...
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Page 9: Hex Digital Wiring Schematic
Return Air filter Internal on/off Thermostat - Digital Controller The thermostat should be disabled for digital controller, as the digital controller should control all airflows. Internal on/off Thermostat - Manual Controller (Optional) The internal thermostat (2core cable from the HEX unit) can be set so the unit turns off if the temperature exceeded the set point (eg if thermostat is set to 30, the unit will turn off if the incoming fresh air is above 30ºC). -
Page 10: Wiring Schematic - Manual 3Speed Switch
Wiring schematic - Manual 3speed switch The attic box also comes with a two core wire for use with the optional thermostat. HEX390 Installation & Commissioning Instructions September 2016... -
Page 11: Wiring Schematic - Digital Controller
Wiring schematic - Digital controller Attic Controller Circuit Board Patch lead socket Terminate grey Isolator & brown wires Switch. from the HEX Circuit Board unit separately Patch lead socket See p8 for full Isolator image Heat Sensor Plug. Switch. Heat Sensor Plug. 240VAC MOTOR HEAT... -
Page 12: Installer's Recommended Settings
Trouble Shooting Symptoms Solutions Fans not operational Check circuit breaker in the mains switch board • Check power to the hall controller. If hall controller is active, check • the 2A fuse in the attic controller, after isolating the power to the unit. Fan too noisy Check the Max Fan Speed setting match the recommended setting •... -
Page 13: Digital Controller - Commissioning Instructions
Digital Controller - Commissioning Instructions he Heat Recovery Digital Controller has a Press up and down arrows number of features available to customize together for 5 secs to get to the system to suit house size, layout and user Setup Menu preferences. -
Page 14: Digital Controller - Commissioning Instructions - Menu Options
Digital Controller - Commissioning Instructions (continued) Digital Controller - Commissioning Instructions - Menu Options Heater Kit Yes/No (default Yes) If No - heater options are removed from all menus. If Yes - heater options are available in User menu - Heater On/Off for continuous or night heat (to times as set below) . - Page 15 Filter Timer Yes/No (default No) – Controller counts hours run by the fan and when filter is due for a change the display flashes with ‘Swap Filter’ . If filter timer is set to ‘Yes’, another menu appears allowing filter period adjustment (240 day) (range 150 - 240 days). The filter timer can be reset in the user menu at any time.
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Page 16: User Operating Instructions
User Operating Instructions Manual Controller This unit has High / Medium / Low speeds which the homeowner can use to regulate the fresh air amount to suit the load. The 3 speed switch has four settings: Typically: 3 - High - where a number of people are living in the house and/or outside temperatures are moderate 2 - Medium - less people in the house and/or colder outside temperatures 1 - Low - mainly to keep air fresh in the home during extremely cold conditions.
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