SR658 Solar Controllers for Split Solar Water Heater

1.1 Overview

• SR658 solar controller is used in more complex and versatile solar heating systems.

• It can heat multiple water tanks, control multiple solar collector matrices, and intelligent control of alternative energy equipment such as gas, heat pumps, and boilers.

• It can realize intelligent control of heating water tank, swimming pool, floor heating and other multi-purpose.

• 19systems can be programmer.

• Conventional/HE pump both available on.

• Support firmware update by SD card.

1.2 Applications Capacity

• Max.number of collectors:2

• Max.number of storage tanks:2

• Max.number of relays:7

• Max.number of sensors:8

• Max.number of visualization application system:19

• Signal port for HE pump:PWM1,PWM2,PWM3

• FRT:1*Digital flowmeter sensor

• VFS:1*Grundfos flowmeter sensor

1.3 Main functions

• DATE---Date setting

• Light---Display lightness adjustable

• Timed heat---backup heating

• Circle---Hot water circulation

• Sys—Application programmer

• LOAD---Setup Loading tank1

• LOAD2--- Setup Loading tank2

• COL---Collector1

• COL2---Collector2

• PUMP---Pump control mode

• LLOGI---Tank loading logic

• COOL---Cooling function

• HEATX---Thermal energy transfer between tanks.

• RPH---Preheat heating return function

• AUX---Auxiliary function

• MAN---Manual mode

• BLPR---Blocking protection function

• OTDIS---Thermal disinfection function

• OPARR---Parallel relay function

• OHQM---Thermal energy measurement

• GFDS---Registration of Grundfos sensor

• UNIT---C-F unit switch

• OSDS---SD card

• REST---reset

• PASS--- password set

• Firmware update

• Holiday function

• Screen Protection

• Trouble Protection

• Trouble Checking

1.4 Delivery scope

2.1 Technical Parameters

2.2 Optional accessories

2.2.1 Groundfos Direct Sensor VFS & Flow Meater

2.2.2 Electromagnetic relay : SR802,can control electric heating of ≤4000W

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 ~ 50oC Water proof grade: IP43.

SR802 Connection Diagram:

3.1 Solar heating system with a solar collector matrix heating 2 water tanks

3.2 Two solar collector matrix heating two water tanks for solar heating system

3.3 Two water tanks, heat floor heating, gas as a spare solar heating system

3.4 Solar heated water tank and swimming pool system

SR658.pdf