Hive Thermostat Mini - 3 E. Gravity-Fed and Pumped Systems

Hive Thermostat Mini Installation Guide
11
3d
Multizone systems – Important things to know
1
If you’re installing Hive on multiple zones, you’ll need to install all the Receivers before testing
the boiler and pairing the thermostats (stages 4 and 5).
2
Hive Multizone can support an unlimited amount of heating and hot water zones.
3
OpenTherm is not currently supported on central heating systems with multiple zones. If the
boiler is OpenTherm compliant and is congured with a plumbed zone system, please ensure
all Receivers are set to standard relay mode (the default switch position: 2).
4
If installing a dual channel Receiver, the chosen central heating zone will need to be wired
into the dual channel Receiver, and this zone will control the hot water.
Hot tips:
Ensure you complete stage 4 (page 15) to conrm Receivers are installed and operating the
heating system correctly.
Label the Receivers once you have installed them so that it’s clear which Receiver controls
which zone.
When you are pairing the Receivers to the thermostats, (stage 5) ensure that you pair the
Receivers once at a time so you can identify which thermostat is paired to which Receiver.
3e
Gravity-fed and pumped systems
Gravity-fed and part-pumped systems are wired dierently to standard boilers. With these, the hot
water relay switches on the boiler, whilst the heating relay opens a valve, operates a pump, or both, to
divert hot water to the heating. If you are installing into a gravity-fed or part pumped system,
complete the wiring and then switch the Hive Receiver to ‘gravity-fed’ mode as follows:
1
Switch o the power to the boiler and Receiver.
2
Wait at least 5 seconds, then switch the boiler and Receiver back on.
3
Press and hold the hot water button for at least 10 seconds.
The Receiver status light will ash BLUE for 3 seconds when entering ‘gravity-fed’ mode.
Or GREEN for ‘fully pumped’ mode. Fully pumped mode is the default for new devices.