Need help?Do you have a question about the Grasslin Towerchron QM1 and is the answer not in the manual?
Provides initial guidance for installing and using the timer units.
Highlights risks of electric shock and requirements for professional installation and fused circuits.
Explains the function of programmers in setting heating and hot water time periods.
Details backplate mounting, fixing methods, and cable entry for the timer units.
Lists electrical rating, fitting type, dimensions, and ambient temperature limits.
Describes suitable uses for the QM1, including domestic heating and combi boilers.
Illustrates the internal terminal connections for the QM1 timeswitch.
Provides a circuit diagram for domestic central heating with gravity fed hot water supply.
Details applications for QM2 in fully pumped and gravity hot water systems.
Shows the internal terminal connections for the QM2 timeswitch, including HW and CH terminals.
Wiring instructions for QM2 in gravity hot water/pumped heating systems with room stats.
Wiring diagram for QM2 with two-port valves, room and cylinder stats in DHW systems.
Wiring diagram for QM2 in fully pumped systems with 2-port spring return valves.
Wiring diagram for QM2 in fully pumped systems with 3-port mid-position valves.
Provides a conversion chart for selecting compatible room and cylinder thermostats.
General| Type | Digital timer |
|---|---|
| Display | LCD |
| Operating Voltage | 230 V AC |
| Power | 3680W |
| Timing Accuracy | ± 1 second per day |
| Operating Temperature | -10°C to +40°C |
| Shortest Switching Time | 1 minute |
| Battery Backup | Yes |
| Mounting | DIN rail |
| Protection Class | IP20 |
| Frequency | 50/60 Hz |
| Switching Capacity | 16A |
| Program Modes | Daily and Weekly |
| Timer Range | 1 minute to 7 days |
To Next Page