OJ Electronics OCC4-1999 and OCD4-1999 thermostat installation instructions covering sensor mounting, wiring, first-time settings and technical data.
The OCC4/OCD4 is an electronic on/off thermostat for temperature control using an NTC sensor located either externally or internally in the thermostat. It is intended for flush mounting in a wall socket, with a baseplate available for external wall mounting. The product programme includes OCC4-1991 with floor sensor, OCC4-1999 with built-in room sensor, and OCD4-1999 with both floor and built-in room sensors.
The instructions cover safety warnings, sensor mounting, mounting of thermostats with built-in sensors, wiring and mounting steps, first-time settings for language, time and date, fault location and error codes, CE marking and classification, and technical data. Programming is referred to the user manual.
| Voltage | 230 VAC ±10% 50 Hz |
|---|---|
| Max. pre-fuse | 16 A |
| Output | Max. 16 A / 3600 W |
| Control principle | PWM/PI |
| Stand-by power | 0.6 W |
| Battery backup | 5 years |
| Temperature range | +5/+40°C |
| Limit sensor (OCD4) | +5/+40°C |
| Ambient operating temperature | +0/+25°C |
| Enclosure rating | IP 21 |
| Dimensions | H/84, W/84, D/40 mm |
| Display | 100x64 pixel STN - white backlight |
The OCC4-1999 is a clock-thermostat with a built-in room sensor; the OCD4-1999 has a floor sensor and a built-in room sensor.
It should be mounted on the wall about 1.6 m above the floor with free air circulation around it, avoiding draughts and direct sunlight or other heat sources.
E1 means the built-in sensor is short-circuited or disconnected; E2 means the external sensor is short-circuited or disconnected.
The sensor cable may be extended up to 100 m using a separate two-core cable, which must be placed in a separate pipe or segregated from power cables.