The KES Geyser Load Control Timer (often identified as model
) is a standalone unit designed to automate geyser operation and prevent heating during peak demand periods. Installation Instructions
Installation should typically be performed by a qualified electrician into a distribution (DB) panel or surface-mounted in a ceiling cavity. You can view detailed technical drawings in the Geyser Load Control Timer ISG1201 Guide.
Safety First: Turn off the main power switch in the master DB board and the geyser isolator before starting. Mounting: Secure the onto a DIN rail using the securing clips. Wiring (DB Mount):
Connect the Live wire (Red) from the geyser isolator to terminal L2. Connect the Neutral wire (Black) to the neutral bar. Connect the Earth wire (Green/Yellow) to the earth bar.
Verification: Once power is restored, the green LED should indicate mains power status, and a flashing blue LED indicates the active program. Programming & Modes
The timer features pre-programmed "Peak" times (Monday to Friday, 06:00–08:00 and 18:00–20:00) during which it prevents geyser operation to save energy. For general digital timer steps, companies like HellermannTyton provide visual programming tutorials.
Mode Selection: Use the keys on the face panel to cycle through programming levels. LED Indicators: Green: Mains Power is ON. Red: Load (Geyser) is ON.
Blue Flashing: Indicates the selected program level (e.g., 1 flash for Prog 1, 2 flashes for Prog 2).
Manual Override: An "Override" or "Overload" button allows you to switch the geyser on immediately if you are outside of the designated peak times. Program Options
Prog 1 (Default): Standard operation excluding peak times; may include weekend settings. Prog 2: Often suitable for solar geyser applications. Prog 3: "OFF" status (3 blue flashes).
For more specific timing adjustments, users often refer to the KES Geyser Timer Instruction Manual on Scribd for full model-specific steps. Geyser Load Control Timer ISG1201 Guide | PDF - Scribd
The KES Geyser Load Control Timer (ISG1201) is an intelligent energy-saving device designed to automate water heating while avoiding high-tariff peak demand periods. Core Programming Profiles kes geyser load control timer manual new
The unit features four pre-programmed profile options, which you can cycle through using the "Programme Select" button:
Prog 1 (Default): The geyser is always ON but automatically switches OFF during morning and evening peak times (Monday to Friday).
Prog 2 (Solar Optimized): The geyser is OFF from 08:00 to 15:00 and during peak periods (Monday to Friday), making it ideal for solar-assisted systems.
Prog 3: The unit remains OFF at all times except when manually overridden.
Prog 4: The geyser is OFF during specific blocks: 00:00–03:00, 08:00–15:00, 20:00–24:00, and during standard weekday peak times. Manual Features & Indicators
Override Button: Provides a 1-hour manual bypass to heat water instantly. Note that this override is typically disabled during designated peak load times to prevent grid strain. LED Status Lights: Green: Mains power is connected. Red: Geyser is currently ON.
Flashing Blue: Indicates the active program (e.g., 2 flashes = Prog 2).
Battery Backup: Equipped with an internal battery that maintains settings for 7–10 years, ensuring the clock remains accurate even during power outages. Installation Highlights
The ISG1201 is designed for easy integration into existing or new distribution (DB) panels or via surface mounting in ceiling cavities.
Safety First: Always turn off the main power and geyser isolator before attempting installation.
Load Capacity: Rated for a maximum resistive load of 20A (approx. 4600W at 230V).
Real-Time Clock (RTC): To verify the current internal time, hold the "Override" and "Program" buttons simultaneously. The KES Geyser Load Control Timer (often identified
For full technical details, you can view the Geyser Load Control Timer ISG1201 Guide on Scribd or check local availability at Bob Shop. If you'd like, I can help you:
Identify the exact peak time slots for your specific region. Compare this model with WiFi-enabled geyser controllers.
Walk through a step-by-step wiring guide if you're doing a DIY setup. Geyser Load Control Timer ISG1201 Guide | PDF - Scribd
The KES Geyser Load Control Timer (specifically model ) is designed to reduce electricity consumption by preventing your geyser from heating during peak demand periods. Installation Instructions
Safety First: Turn off the main power at the Distribution Board (DB) and the geyser isolator before starting.
Mounting: The unit can be surface-mounted (e.g., in a ceiling cavity near the geyser) or DIN-rail mounted directly inside the DB panel. Wiring (DB Mount):
Connect the Live wire (Red) from the geyser isolator to terminal L2. Connect the Neutral wire (Black) to the DB neutral bar. Connect the Earth wire to the DB earth bar. Programming & Operation
features four pre-programmed profile options, which you can cycle through using the "Programme Select" button.
Standard Peak Lockout: By default, the timer prevents operation during standard peak times: 06:00 – 08:00 and 18:00 – 20:00 (Monday to Friday). Programme Profiles:
Prog 1: Always ON except for peak lockout times (Mon–Fri). Geyser remains ON 24/7 during weekends.
Prog 4: Most restrictive; OFF for most of the day (00:00–03:00, 08:00–15:00, 20:00–24:00) and during peak times. It includes a short weekend "ON" window from 11:00 to 13:00.
Manual Override: Press the Override button to turn the geyser ON for 1 hour. Step 3 – Enabling/Disabling Load Limiting The new
Note: The override will not function during designated peak demand hours. Verification
To check the Real Time Clock (RTC), hold the "Override" and "Program" buttons simultaneously. The LED will flash to indicate the current hours, minutes, and day of the week. Geyser Load Control Timer ISG1201 Guide | PDF - Scribd
The new KES timer has a load limit threshold setting (default 60A). If total house current exceeds this, the timer disconnects the geyser.
✅ Ideal for:
❌ Avoid if:
Nina Khumalo had not slept through the night in three weeks.
Every morning at 2:47 AM, her geyser roared to life like a wounded hippo, shaking the pipes in her tiny Johannesburg flat. The culprit was the old, forgotten load-shedding timer installed by the previous tenant—a cryptic black box with the faded label “KES Geyser Load Control.” It had a mind of its own.
Frustrated, she finally called the landlord. “Fix it, or I deduct the electricity bill,” she said.
An hour later, a courier slipped a thin, brown envelope under her door. Taped to the front was a sticky note: “New model. Manual inside. You install. I’m busy.”
Inside was the KES Geyser Load Control Timer Manual (New v.4.2) . It was 48 pages of dense, single-language engineering.
The KES Geyser Load Control Timer is an electronic device designed to schedule and control electric water heaters (geysers) to reduce electricity costs, avoid peak tariffs, and protect heating elements. It integrates timer functions with load management—allowing the geyser to heat only during off-peak hours, respond to utility signals or grid constraints, and provide manual override and safety features.