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INDEX
Z-one Relay thermostat connections
Thermostat wiring ........................................................................................................................................................................... 3
ZSR101 - single zone relay
Product overview ............................................................................................................................................................................ 4
Operation and cover removal ........................................................................................................................................................................5
A1 - Single thermostat ...................................................................................................................................................................................6
A2 - Multiple thermostats ....................................................................................................................................................................8
A3 - Single master thermostat, with TRVs, variable speed pump .................................................................................................... 10
ZSR103, ZSR104 & ZSR106 - multi-zone pump relay
Product overview ........................................................................................................................................................................... 12
Circuit board .................................................................................................................................................................................. 13
Cover removal ................................................................................................................................................................................ 14
Product details ............................................................................................................................................................................... 15
B1 - Mod/Con boiler, hydro separator or buffer tank, zone pumps ................................................................................................. 16
B2 - Traditional boiler, indirect DHW w/ priority, zone pumps .......................................................................................................... 18
B3 - Mod/Con boiler, primary loop, closely spaced tees, zone pumps ............................................................................................ 20
ZVR103, ZVR104 & ZVR106 - multi-zone valve control
Product overview ........................................................................................................................................................................... 22
Circuit board .................................................................................................................................................................................. 23
Cover removal, Transformer Installation .................................................................................................................................................24
Product details ............................................................................................................................................................................... 25
C1 - Mod/Con boiler, hydro separator, zone valves ........................................................................................................................ 26
C2 - Mod/Con boiler, indirect DHW on primary side of hydro sep, zone valves ............................................................................... 28
C3 - Mod/Con boiler, indirect DHW on load side of hydro sep, zone valves .................................................................................... 30
C4 - Mod/Con boiler, indirect DHW on primary side of hydro sep, master and slave control ........................................................... 32
C5 - Traditional boiler, indirect DHW (no priority) with valve ............................................................................................................. 34
C6 - Traditional boiler with reset control, priority indirect DHW with valve ........................................................................................ 36
C7 - Mod/Con boiler, hydro separator, zone valve (more than 6), multiple secondary pumps .......................................................... 38
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