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Related Manuals for Heatmiser IMI HEIMEIER UH6
Summary of Contents for Heatmiser IMI HEIMEIER UH6
- Page 1 Compact wiring centre...
- Page 2 UH6 – Installation manual Description The UH6 is an 6 zone wiring centre for use with IMI Heimeier 230 V powered thermostats. The UH6 can be used to control any actuator or valve which requires a 230 VAC signal to open. For mid position valves and those requiring a closing signal, a changeover relay would be required.
- Page 3 Removing cover and DIN rail installation To remove the clear front cover of the UH6, turn the two screws 90° counter clockwise and pull the cover off. The UH6 can be mounted directly to the wall using the two screw holes in the back, or alternatively, the unit can be DIN rail mounted, as shown here;...
- Page 4 Mains supply UH6 explained Power supply into the UH6 which should be fused at 5A these connections are marked; Fuse L = Live or phase 230 VAC 50/60Hz 5A, 20 mm anti-surge fuse. E = Earth This fuse supplies power to all 230 V outputs from the UH6. N = Neutral The fuse also protects the zone and pump outputs.
- Page 5 Time clock input Zones 1…6 (inputs) L = Live supply Zone inputs are clearly marked at the top of the circuit board; E = Earth L = Live supply to thermostat. N = Neutral supply = Timed switch live to thermostat, activated by the input from the time clock.
- Page 6 Wiring diagram – UH6 Cable sizes that can be used: Stranded cable 0.75 - 1.5 mm. Solid core cable 1.0 - 1.5 mm 15 mm Cable lengths for zone inputs should be measured according to the diagram shown below. The L, , N and S/L cables are the same length for all zones as shown in the diagram on the left.
- Page 7 Connecting mains supply Clamp the insulated part of the cable in the cable grips. Position the mains supply L (Live) cable in the L slot. Position the mains supply Neutral cable in the N slot. Push into the groove to hold cable in position.
- Page 8 Timeclock and zone connections When using non programmable thermostats, Wire the thermostat connections as shown This example shows wiring for programmable connect the Time Clock cable as shown here. here, connect the earth from the thermostat thermostats that do not require a master time The earth cable from the time clock goes to the earth connection block on the left, clock on the system.
- Page 9 Installing UH6 front module Locate the UH6 front module on to the back plate, ensuring each cable aligns with the slots on the front panel. Turn the four screws 90° clockwise to lock the front module in position.
- Page 10 Inserting thermostat cables Once the front module has been locked in position, the next step is to bend each cable around and insert into the cable clamp. As shown here. For stranded cables, it may be necessary to twist the cable strands and open the cable clamp before inserting the cable.
- Page 11 Inserting actuator cables Each zone output has connections for up to 4 x 230 V actuators. 1st actuator: Use the lower left side L and N connections. Clamp the insulated part of the actuator cable in the cable grips by pushing upwards. Bend the actuator wires around and insert the Neutral wire into the lower N connection.
- Page 12 Inserting UFH pump and heat output cables UFH pump: This 230 V output is used for an underfloor heating manifold pump. Connections are marked; N = Neutral E = Earth L = Live When a zone calls for heat*, the live and neutral output will supply 230 V to the manifold pump. It is recommended that this is fed through a high limit switch placed on the heating manifold, to protect against mechanical failure of the manifolds temperature control.
- Page 13 Fitting the front cover To place the clear front cover on to the UH6, line up the front cover with the slots along the top and bottom edge, then slide the front on. Turn the two screws 90° clockwise to lock the front cover in position. The UH6 can now be powered up.
- Page 14 Wiring diagram – UH6 and neoStat 6 zones (5 X UFH, 1 X RADIATOR ZONE) WIRING KEY UFH Zone Radiator Zone UFH Zone UFH Zone UFH Zone UFH Zone NEUTRAL EARTH LIVE SWITCH LIVE END SWITCH / HEAT ENABLE N A1 A2 - RT N A1 A2 - RT N A1 A2 - RT N A1 A2 - RT...
- Page 15 Wiring diagram – UH6 and DS-SB 6 zones with time clock (5 X UFH, 1 X RADIATOR ZONE) WIRING KEY Neo Timeclock UFH Zone UFH Zone UFH Zone UFH Zone Radiator Zone Mode 2 UFH Zone NEUTRAL EARTH LIVE SWITCH LIVE TIMER LIVE END SWITCH / HEAT ENABLE...
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Page 16: System Configuration
System configuration ENGINEER TO COMPLETE ON INSTALLATION UH6 wiring centre title:......................Zone title Zone type Underfloor Radiator Zone 1 ................Zone 2 ................Zone 3 ................Zone 4 ................Zone 5 ................Zone 6 ................ - Page 17 Notes...
- Page 20 1510-06.480 EN Rev 1.2 05.2023 Want more information? View technical specifications directly on our website: www.imi-hydronic.com Products commonly used with the UH6 wiring centre. neoStat V2 DS-SB V3 We reserve the right to introduce technical alterations without prior notice. www.imi-hydronic.com...