265
Discontinued - Replaced By: 294
Part of the Multi-Staging Controls Series
Ordering Code: 265
UPC: 779655026504
Boiler Control, Three Modulating Boiler and DHW, Setpoint
The boiler control 265 is designed to stage multiple modulating boilers using outdoor temperature reset. It can be used in applications ranging from baseboard or radiant heating systems, to dedicated domestic hot water heating in commercial buildings. This control regulates a single heating water temperature through outdoor temperature reset and/or setpoint/DHW control. It is capable of controlling (stage and rotate) up to 3 modulating boilers by using a native 4-20 mA (or 0-20 mA) signal that can be converted to 2-10 V (dc) or 0-10 V (dc), as well as the system pump.
Features
- Outdoor temperature reset, setback input for energy savings
- warm weather shut down, automatic boiler differential
- Control up to 3 modulating boilers, Exercising
- DHW pump or valve operation, DHW Priority (optional)
- Equal run time rotation, boiler pump operation
- Quick setup for easy installation and programming of control, User comfort adjustment to increase or decrease building space temperature
- Advanced settings to fine-tune building requirements
- Powered system pump output
- Test sequence to ensure proper component operation
| Specifications | |
|---|---|
| Agency Approvals | CSA C US, meets Class B: ICES & FCC Part 15 |
| Ambient Conditions | Indoor use only, 32 to 122 degrees F (0 to 50 degrees C), RH less than or equal to 90 percent Non-condensing, Altitude less than 6560 ft. (2000 m), Installation Category II, Pollution Degree 2 |
| Control Type | Microprocessor control, this is not a safety (limit) control |
| Demand | 20 to 260 V (ac) 2 VA |
| Dimensions | 6 5/8 IN H x 7 9/16 IN W x 2 13/16 IN D (170 x 193 x 72 MM) |
| Enclosure Material | Blue PVC plastic |
| Enclosure NEMA Rating | NEMA 1 |
| Hydronic - HVAC Control Type | Boiler Control |
| Modulating Output | 0-20 mA / 4-20 mA (up to 1000 ohms load) |
| Power Supply | 115 V (ac) plus / minus 10 percent, 60 Hz, 600 VA |
| Relay | 230 V (ac) 5 A, 1/3 hp, pilot duty 240 VA |
| Sensor | NTC thermistor, 10 k ohms at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta=3892 |