Introduction
The Perry 1CRCR209/S is a weekly digital analog wall thermostat designed for precise temperature control in your home or office. This battery-powered device features a clear LCD display, allowing for easy programming of two temperature levels throughout the week, including a fixed anti-freeze setting. Its robust design supports both ON/OFF operation with adjustable differential and a proportional control cycle. This manual provides comprehensive instructions for installation, operation, and maintenance to ensure optimal performance of your thermostat.
1. Setup and Installation
1.1 Battery Installation
The thermostat requires two 1.5V AA alkaline batteries for operation. Ensure correct polarity when inserting the batteries.
Figure 1: Front view of the thermostat with the battery compartment open, showing the slots for two AA batteries.
Figure 2: A closer view of the battery compartment, highlighting the terminals for battery insertion.
1.2 Wall Mounting
The thermostat is designed for wall mounting or semi-recessed installation. Use the provided mounting plate and screws to secure the unit to a suitable wall location, away from direct sunlight, drafts, or heat sources that could affect temperature readings.
Figure 3: Rear view of the thermostat's mounting plate, showing screw holes and connection points for wall installation.
Wiring: Connect the thermostat to your heating system according to local electrical codes and the wiring diagram provided in the full product manual (not included here). The output is a 1-contact deviation, potential-free: 8(2)A/250Vc.a.
1.3 Initial Setup
Upon battery installation, the LCD display will activate. Set the current time and day of the week. Refer to the full product manual for detailed instructions on initial time and date settings.
2. Operating Instructions
2.1 Temperature Levels and Anti-freeze Function
The thermostat allows for setting two distinct temperature levels, typically for day and night comfort. Additionally, a fixed anti-freeze temperature of 5°C is pre-set to protect your system during colder periods.
Temperature regulation is performed via a graduated scale with a mechanical set-point indicator. Use the adjustment dials (often labeled with sun/moon symbols) to set your desired high and low temperatures.
2.2 Weekly Programming
The weekly programming feature allows you to define specific temperature settings for each day of the week, with a minimum programming interval of 30 minutes. This enables customized heating schedules to match your lifestyle.
The circular display with segments around the edge typically represents the 24-hour cycle, where each segment can be set for a specific temperature level (e.g., comfort or economy). Use the programming buttons (often located near the circular display) to set your desired schedule.
2.3 Operating Modes
- ON/OFF Operation: The thermostat operates by switching the heating system on or off based on the set temperature and an adjustable differential (0.3°C, 0.5°C, 0.7°C, or 0.9°C). This differential prevents rapid cycling of the heating system.
- Proportional Cycle: An alternative operating mode where the thermostat modulates the heating duration in relation to the ambient temperature, providing more stable temperature control. This cycle is adjustable (7, 10, 15, or 20 minutes). This mode can often be activated via an internal microswitch (e.g., microswitch 3, as noted in some user experiences).
- Manual Permanent Function: Allows you to temporarily override the programmed schedule and maintain a specific temperature until manually changed.
- Total OFF Function: Completely deactivates the heating system.
2.4 Advanced Features
- Mechanical Temperature Lock: This feature allows you to set physical limits on the temperature adjustment dials, preventing unauthorized or accidental changes to the set temperatures.
- Telephone Command Input: The thermostat includes an input for a telephone command, allowing remote activation or deactivation of the heating system (e.g., to switch to a comfort temperature before returning home). This typically involves connecting an external telephone actuator to specific pins inside the unit.
- Fahrenheit Display: Some models may have an internal microswitch (e.g., microswitch 4) to switch the temperature display from Celsius to Fahrenheit.
3. Maintenance
3.1 Battery Replacement
When the battery low indicator appears on the display, replace the two 1.5V AA alkaline batteries promptly to ensure continuous operation. Follow the battery installation steps outlined in Section 1.1.
3.2 Cleaning
Clean the thermostat's exterior with a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray directly onto the unit, as this may damage the display or internal components.
4. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Low or depleted batteries. | Replace the two 1.5V AA alkaline batteries. Ensure correct polarity. |
| Heating system not responding. | Incorrect wiring; thermostat in OFF mode; temperature set too low; heating system fault. | Check wiring connections (consult a qualified electrician if unsure). Verify the thermostat is not in Total OFF mode. Increase the set temperature. Check your heating system for other faults. |
| Temperature readings seem inaccurate. | Thermostat location affected by drafts, direct sunlight, or heat sources. | Relocate the thermostat to a more suitable position, away from external influences. |
| Cannot change temperature settings. | Mechanical temperature lock engaged. | Disengage the mechanical temperature lock if present. |
If problems persist after attempting these solutions, please contact customer support or a qualified technician.
5. Technical Specifications
| Feature | Specification |
|---|---|
| Model | 1CRCR209/S |
| Brand | Perry |
| Power Supply | 3V (2 x 1.5V AA alkaline batteries) |
| Display | LCD 2 2/3 |
| Output Contact | 1 deviation contact, potential-free: 8(2)A/250Vc.a. |
| Operating Mode | ON/OFF with adjustable differential (0.3/0.5/0.7/0.9°C) or proportional cycle (7/10/15/20 min) |
| Temperature Levels | 2 programmable levels + fixed anti-freeze at 5°C |
| Minimum Programming | 30 minutes |
| Special Features | Temperature display, Manual permanent function, Total OFF function, Wall/semi-recessed mounting, Mechanical temperature lock, Telephone command input |
| Color | White |
| Dimensions (LxPxH) | 121.5 x 31.5 x 82 mm |
| Weight | 200 g |
6. Warranty Information
This product is covered by a standard manufacturer's warranty. Please refer to the warranty card included with your purchase or contact Perry customer service for specific details regarding warranty duration and terms. Keep your proof of purchase for warranty claims.
7. Customer Support
For further assistance, technical support, or inquiries regarding your Perry 1CRCR209/S thermostat, please contact Perry customer service. Contact information can typically be found on the manufacturer's official website or on the product packaging.
For additional resources, you may visit the official Perry website: www.perry.it
