This comprehensive manual provides step-by-step instructions for installing, programming, and troubleshooting your new KES Geyser Load Control Timer. Technical Specifications
Press the button to exit programming and save your settings. Recommended Energy-Saving Schedule Morning Peak: ON at 04:30 AM | OFF at 06:30 AM Evening Peak: ON at 17:00 PM | OFF at 19:00 PM Operating Modes (Manual Override)
Wrapping your geyser in a thermal blanket helps retain heat for much longer, reducing the workload on the heating element. When a timer switches the geyser off, a good blanket ensures the water stays hot for hours, providing hot water without the element needing to turn on as frequently.
The is an electronic time switch designed specifically to manage the load on your electric water heater. Unlike a simple timer that only switches on/off based on time, a load control timer interfaces with your utility’s ripple control system or internal load limiter. It prevents the geyser from drawing power during peak grid demand or when the household exceeds a pre-set load limit (e.g., 60A or 80A).
1.2V Rechargeable Lithium (retains clock and program memory during power outages) Mounting Standard: 35mm DIN Rail 2. Installation and Wiring Diagram kes geyser load control timer manual new
While holding that button, press repeatedly until the correct day of the week appears at the top of the screen (e.g., MO, TU, WE).
The timer cuts power to the geyser completely, ignoring all schedules. Use this mode when going on vacation.
If you need help with a specific part of the setup, please let me know: Is your timer and showing a display?
Hold this button while pressing D+, H+, or M+ to set the current time. When a timer switches the geyser off, a
Disclaimer: High-voltage work can be dangerous. Installation must be performed by a qualified electrician or under strict safety guidelines. Always switch off the main DB power supply first. Prerequisites KES ISG1201 Go to product viewer dialog for this item. Timer Unit Flat screwdriver Appropriate wire cutters/strippers DIN Rail space in the DB Board
Has anyone else noticed the updates in the ? I just installed the latest unit and spent the afternoon decoding the instructions so you don't have to.
from 08:00 to 15:00 and during peak hours. Best for solar geyser setups.
The geyser is forced off completely, bypassing all program schedules. Use this mode when going on vacation to prevent unnecessary power usage. It prevents the geyser from drawing power during
inside a distribution board or a surface-mount enclosure in the ceiling near the geyser isolator.
20A / 30A (Check your specific model sticker) Power Consumption: < 2W Internal Battery Backup: 150 Hours (Rechargeable Lithium) Time Error: < 1 second/day
| Error Display | Meaning | Solution | |---------------|---------|----------| | | Internal memory failure | Press RST with a pin. If persists, replace timer. | | E2 | Battery low (below 2.5V) | Replace internal rechargeable battery (CR2032 or soldered type). | | E3 | Load limit exceeded repeatedly | Reduce other appliances (stove, dryer) or increase load limit setting. | | - - : - - on clock | No time set | Long press SET and reprogram time. | | Flashes “Ld” but grid is stable | Faulty ripple signal or wiring | Call electrician to test R1/R2 terminals. | | Geyser not heating in MAN mode | Tripped internal relay | Check output terminal voltage with multimeter. |
Safety notes:
All 7 days simultaneously (Recommended for standard daily profiles)