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SR258
Applicable to SFBS/SFES/SFFS
Integrated circuit/ABS
Control solar heating system intelligently
Suitable for split pressurized solar water heater
1 year
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1. Product Description
SR258 is used in a split pressurized solar water heater system.
Intelligently controlled by the latest high-performance microcontroller from NXP.
All devices use industrial-grade standards to operate in cold, high-temperature, and humid environments, while using a clock chip for precise timing control.
The controller is LCD type, with beautiful appearance, stable and reliable performance, easy to install, as the most ideal accessory product for split pressure solar water heater.
Max.number of collectors:1
Max.number of storage tanks:1
Max.number of temperature sensor:5
Max.number of circulation pump or valve:3
Max.number of electronic flowmeter:1
Max.number of electromagnetic relays:4
Max.number of auxiliary electric heating:1
LCD---display
CLK---time setting
THET---Timed auxiliary heating
CIRC---water-side circulating pump three-time temperature/time control function
LOAD---water tank heating setting
COL---collector function
OCEM---heat collector emergency shutdown function
OCCO---collector cooling
OCMI---the lowest temperature of the collector
OCFR---heat collector antifreeze function
PUMP---Water pump control mode (high efficiency pump speed control)
COOL---cooling function
OSTC---water tank cooling
OHDP---heat transfer
MAN---manual function
BLPR---blocking protection
OTDI---high temperature sterilization function
FS---Flow monitoring and pump idling protection
UNIT---Conversion of Celsius and Fahrenheit
BEEP---Buzzer fault alarm function
RET---reset
PASS---Password setting
M.H---manual heating
Holiday function
Screen Protection
Trouble Protection
Trouble Checking
2. Technical Parameters
 Contactor unit of high power: SR802 When user selects electrical heater as back-up device, we recommend using SR802 unit connecting controller and electrical heater. Technical data of SR802 Dimension: 100mmx100mmx65mm. Power supply: 180V ~ 264V / AC 50 / 60Hz. Suitable power: ≤ 4000W. Available ambient temperature: -10 ~ 50°C Water proof grade: IP43. |
3. Product Installation
Operation Manual of the Intelligent Controller SR258
