digi IHT Immersion Heater Timer
page Short description, safety remarks............................................................ 3 Installation........................................................................................................... 4 Program structure............................................................................................ 6 OK reset Symbols, keys.................................................................................................... 8 Setting 24h or am/pm clock, time, weekday......
Short description Immersion heater Timer digi IHT Time control switch for electrical loads; custom designed for water heating elements, up to the rated current (see page 19). Safety instructions · Installation must be carried out by a qualified electrician and conform to current IEE regulations. · Mains supply must be suitable fused and provision made for Class A circuit disconnection. Ensure earth continuity is maintained by use of the earth parking terminal.
A 13 15 1 2 3 4 5 6 7 + 17 19 21 23 Menu OK – Res. + 1h B C D 1. Switch off electrical supply to the time control. 2. Loosen screws (A) and separate housing from timer base. Pull timeswitch module off backplate. Offer backplate to mounting location, mark and drill in fixing points B, C & D. Fix backplate to wall. Push timeswitch module on to backplate, ensuring no pressure is exerted on the LCD display and ensure good engagement with the tab terminals. 3.
M ~ 1 Mains supply (input) 3 4 Immersion heater (output) Connections: Mains supply Immersion heater 1 Neutral 1 Neutral 3 Live 4 Live Earth Earth Link to 3 provided
Reset (first installation) Review / adjust Menu Set time: Format 24h or am/pm 24h blinking, using +/- to select, then OK Set time: Hour Hour blinking, using +/- to select, then OK Set time: Minute Minute blinking, using +/- to select, then OK Set time: Day Monday blinking, using +/- to select, then OK Select Program: P01 / P02 / P03 or P-Using +/- to select, then OK to set ON/OFF times or press Menu to escape further programming Menu OK P01-03, P-Setting switching times: First free memory location bl
Set switching ON time: Hour Hour blinking, using +/- to select, then OK Set switching ON time: Minute Minutes blinking, using +/- to select, then OK Set switching ON time: Days Mo-Su blinking, using +/- to select, then OK Set switching OFF time: Hour Hour blinking, using +/- to select, then OK Set switching OFF time: Minute Minutes blinking, using +/- to select, then OK Set switching OFF time: Days Mo-Su blinking, using +/- to select, then OK A maximum of 20 memory locations can be occupied: 10 switching
OK reset : Overview of daily switching program : Setting of 24h or am/pm : Summer/winter clock changes : Weekday display : Switching status display ON/OFF : Manual operation / fixed ON / fixed OFF : Automatic operation 13 15 1 2 3 4 5 6 7 + 17 19 21 23 Menu OK – Res. +/- + 1h : Adjustment keys: By pressing the key longer than 2 sec. you can adjust the timer in steps of 5 units Res.
1 13 1 2 3 4 5 6 7 + 15 Menu OK – Res. 17 19 23 + 1h Choose time display format 21 2 2 + 3 Menu OK – Res. + 1h Set hour 13 1 2 3 4 5 6 7 1 1 2 15 17 + 19 Menu OK – Res. 21 + 1h 23 Set minute 13 1 2 3 4 5 6 7 1 1 2 15 17 19 21 23 + Menu OK – Res.
1 1 2 13 15 1 2 3 4 5 6 7 17 19 + Menu OK – Res. + 1h 21 23 1 = Monday 2 = Tuesday 3 = Wednesday 4 = Thursday 5 = Friday 6 = Saturday 7 = Sunday Prog. P01 : Mo - Su, 1 x ON/OFF ON 0 7 20 24 P02 : Mo - Su, 2 x ON/OFF ON 0 7 12 14 20 24 P03 : Mo - Su, 3 x ON/OFF ON 0 7 12 14 18 20 22 24 Programs P01-P03 The switching on and off times for programs P01 to P03 are preset (pre). The user can change these programs.
P0x 11 pre 1 1 2 13 15 1 2 3 4 5 6 7 + Menu OK – 17 Res. 19 + 1h 21 23 P0x prog 1 1 13 1 2 3 4 5 6 7 15 17 19 21 23 + Menu OK – Res.
P0x 12 prog 1 13 1 2 3 4 5 6 7 15 + Menu OK – 17 Res. 19 + 1h 21 23 1 1 1 13 1 2 3 4 5 6 7 15 + 17 21 23 Menu OK – Res. 19 + 1h ‘-’: Programming the preset memory locations (e.g. for P02 the memory locations prog01 to prog04) OK: Programming of the next free memory location, e.g. you should also program: Sa - Su 22:30 (p.m.) ON (prog05) 23:00 (p.m.
P0x 13 prog Set hour 13 1 2 3 4 5 6 7 1 1 2 15 17 + 19 Menu OK – Res. 21 + 1h 23 Set minute 13 1 2 3 4 5 6 7 1 1 2 15 17 + 19 Menu OK – Res. 21 + 1h 23 Set week days 13 1 2 3 4 5 6 7 1 1 2 15 17 + 19 23 Menu OK – Res.
P0x 14 prog 1 1 2 13 15 1 2 3 4 5 6 7 + Menu OK – 17 Res. 19 + 1h 21 23 Shift When you are programming the switch-off command you can shift the switch-off command by 24 hours with the “-“ key if the switch-off command should not take place until the following day. Example: Mo-Fr 20:00 p.m. - 03:00 a.m. ON 03:00 a.m. - 20:00 p.m. OFF OFF 0 3 Mo-Fr 20:00 p.m. - 03:00 a.m. ON Tu-Sa 03:00 a.m. - 20:00 p.m. OFF ON Monday 20 24 OFF 3 Tuesday 20 24 1 + Menu OK – Res.
P-- 15 prog 1 13 1 2 3 4 5 6 7 15 + Menu OK – 17 Res. 19 + 1h 21 23 1 13 1 2 3 4 5 6 7 15 + Menu OK – 17 Res. 19 + 1h 21 23 1 1 2 13 1 2 3 4 5 6 7 15 + 17 Res. 19 21 23 Menu OK – + 1h 1 see page 11 + Menu OK – Res.
del 16 1 + 2 Menu OK – Res. + 1h 1 13 1 2 3 4 5 6 7 15 + Menu OK – 17 Res. 19 + 1h 21 23 1 1 13 1 2 3 4 5 6 7 15 + Menu OK – 17 Res. 19 + 1h 21 23 1 13 1 2 3 4 5 6 7 15 17 19 21 23 + Menu OK – Res.
Menu + 17 Using the Menu key you can change the following values without a reset: Menu OK – Res. + 1h 24h or am/pm : see page 7 Time : see page 7 Weekday : see page 8 P-- : see page 13 +1h + 1 2 3 4 5 6 7 Menu OK – Res. 13 + 1h 15 17 19 21 23 The +1h key is for the changeover from summer to winter time. · · · By pressing the +1h key 1 hour is added to the current time. +1h is shown on the display. By pressing +1h again 1 hour is subtracted from the current time.
Nominal voltage 220 - 240 VAC / 50 - 60 Hz Power consumption Current output 5 VA at 230 V - Relay Switching current AC - Resistive load - Inductive load cos. Phi 0.6 - Incandescent lamp 16 A 4A 1000 W Switching current DC Minimum switching current AC Minimum switching current DC 100 mA / 20 VAC 100 mA / 20 VDC Battery backup (replaceable) 2 years Operation accuracy +/- 2.5 s/d at 25 °C Ambient temperature -10 ..
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