Skip to content

SR658 Differential Controller

$ 325.00 CAD

Notify me when back in stock

Payments:  Credit Cards paypal bank transfer

Return Policy: We accept return within 30 days of receipt of your orders. Restocking fee applies on some returned Products. Returned Items shall have intact labels, packages and shall not have been used. for more info.

  • refund Full refund if you do not receive your ordered items. 
  • refund Partial Refund for partially not received or damaged items

SR658 Differential Solar Controller

Solar Hot Water differential controller. it turns on circulating pump when collector temperature is above tank temperature by a differential temperature adjustable set point. Supply includes:

  • 1 * SR658 controller 
  • 1 * user manual 
  • 2 * screws and expansion 
  • 2 * P1000 temperature sensor (φ6*50mm,cable length 1.5meter) 
  • 4 *NTC10K temperature sensor (φ6*50mm,cable length 3meter)
  • 1 *clamp bag
Technical data
  1. Inputs: 2* PT1000 temperature sensors, 6* NTC10K B=3950 temperature sensors, 1* Grundfos Direct Sensor (VFS type) ,1* Rotary blade electronic flow meter(FRT)
  2. Output: 3* Electromagnetic relay, Max. current 1A, 3* Semiconductor repay, Max. current1A, 1* low voltagerelay(on/off signal), boiler on/off control, 3* PWM variable frequency output (switchable 0-10V)

CONTROL CONFIGURATIONS & ARRANGEMENTS

SR658 Configurations

O&M Manual O&M Manual SR658