COPELAND 026-1739 Programmable Touchscreen Thermostat User Manual
| General | Details |
|---|---|
| Name | COPELAND 026-1739 Programmable Touchscreen Thermostat User Manual |
| Make | Copeland |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.72 MB |
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Copeland 026-1739 Manual: Questions and Answers
Copeland 026-1739 specifications
| Setpoint range | 32°F to 122°F (0°C to 50°C) |
| Accuracy | +/- 0.6°C, +/- 1.1°F, within operating temperature range |
| Operating temperature | 32°F to 122°F (0°C to 50°C) |
| Storage temperature | -4°F to 140°F (-20°C to 60°C) |
| Wire size | 18AWG maximum, 22AWG recommended |
How do I mount the thermostat baseplate on the wall?
Pass wires through the baseplate opening and attach it to a standard single-gang electrical junction box.
- Use either 2x self-taping screws with dry-wall anchors or regular 6-32 machine screws.
- Do not over-tighten the screws, as physical damage may occur. User Manual, p. 8
What does each terminal do on the Copeland 026-1739 thermostat?
Here are the main terminals for conventional 2H / 2C systems with one transformer:
| Terminal | Function |
|---|---|
| R | 24VAC Power Supply |
| C | 24VAC Power Supply Common |
| Y1 | Cool Stage 1, relay output |
| Y2 | Cool Stage 2, relay output |
| W1 | Heat Stage 1, relay output |
| W2 | Heat Stage 2, relay output |
Can I leave the second stage terminals unused on the Copeland 026-1739?
Yes, for single-stage systems, second stage terminals Y2 and W2 can be left floating (open). User Manual, p. 8
What temperature and humidity range does the Copeland 026-1739 support?
Operating temperature range is 32°F to 122°F (0°C to 50°C); humidity range is 0% to 95% relative humidity, non-condensing. User Manual, p. 7
What does the Modbus Address setting do on the Copeland 026-1739?
Selects which Modbus address the thermostat responds to; default is 1. User Manual, p. 28
How do I add the Copeland 026-1739 touchscreen thermostat in Site Supervisor?
Click the Control Inventory icon, expand HVAC, and select Touch T-Stat from the Add Control dropdown. User Manual, p. 27
What does display showing 'Lo' mean on the Copeland 026-1739 thermostat?
Room temperature is below 0°C or 32°F. Check that operating conditions fall within specifications. User Manual, p. 29
What does HOLD mean on the Copeland 026-1739 display?
HOLD appears in the upper-right corner when the function is active, indicating that setpoints, mode, occupancy, and fan settings are locked and cannot be changed on screen or by the BMS. User Manual, p. 23
Which buttons control temperature settings on the Copeland 026-1739?
Press the room temperature digits to open the menu, then use UP and DOWN arrows to adjust values. Press Done to confirm. User Manual, p. 23
How do I activate HOLD mode on this thermostat?
HOLD can be set for 1, 2, 3, or 4 hours. Press room temperature digits, use UP and DOWN arrows to set duration, then press Done. User Manual, p. 23
Is the Copeland 026-1739 communicating over Modbus RTU?
Yes. The thermostat communicates over Modbus RTU on RS-485 at 9600 or 19200 bps (default). User Manual, p. 5
Does the Copeland 026-1739 have a replaceable battery for the real-time clock?
Yes. An RTC battery, model CR1220, is installed. User Manual, p. 5
Copeland 026-1739 compared with other HVAC thermostats
| Specification | Copeland 026-1739 | Contemporary Controls BAST-421C-B2 BACnet | GE RAK150VF2 | GE WTS10 Daintree |
|---|---|---|---|---|
| Setpoint range | 32°F to 122°F (0°C to 50°C) | 32-122°F (0-50°C) in 0.5° (°F or °C) increments | 60°F–85°F (15°C–29°C) | 45°F – 90°F (7.0°C – 32.0°C) |
| Accuracy | +/- 0.6°C, +/- 1.1°F, within operating temperature range | ±1.8°F (±1.0°C) with all outputs off | 1°F ( 0.5°C) | +/- 1°F @ 75°F |
| Operating temperature | 32°F to 122°F (0°C to 50°C) | 32 to 122°F (0 to 50°C) | 40°F–99°F (4°C–37°C) | Fixed 2°F (1°C) |
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