Sr881 EPP Solar Workstation of Split Pressure Solar Hot Water Heater

Product Description

SR881 EPP Solar Work Station & Pump Stations

1. Produuct Introduction

1.1 Overview

SR881 EPP solar workstation is uesd for split pressurized solar water heater systems.It has flow control, heat cycle, exhaust, pressure control, temperature display, system injection / drain and many other functions.By connecting solar collectors and split pressurized water tanks,store solar energy in a water tank.It can monitor system temperature, pressure, flow and so on at any time.

1.1.1 Product picture

 RS881 single line pump station

1.1.2 Kits Parameter

1.5.1	Return outlet connection (to collector):3/4 IT
1.5.2	Safety valve:6bar
1.5.3	Filling connection 3/4 male thread
1.5.4	Connection of expansion vessel 3/4 male thread
1.5.5	Manometer:0-6bar
1.5.6	Non-return valve:opening pressure 200mmH2D
1.5.7	Circuit pump:Wilo 15-6
1.5.8	Filling connection 3/4 male thread
1.5.9	Digital flow meter 1-16L/min (alternative mechanical flow counter 2-12L/min)
1.5.10	Flow outlet connection (from tank):3/4' IT SR881 operation instruction of solar pump station
1.5.11	Wire terminal of controller
1.5.12	EPP insulation case

1.2 Main functions

• Timing  heating

• Temperature  difference  control  1*ΔT

• Collector  emergency  shutdown

• Collector  cooling  function

• Collector  low  temperature  protection

• Collector  frost  protection

• Tank  re-cooling  function

• Celsius  and  Fahrenheit  temperature  switch

• Maximum  temperature  of  tank(max.number  1)

• Anti-Legionella  function

• Temperature  controlled  hot  water  circulation  pump

• RPM  speed  controlling(1*semiconductor)

• Thermal  energy  measuring

• Pump  interval  functions.

• High  temperature  by-pass  function

• Manual  Control(  for  2  outputs:P1H1)

• Password  setting

• Recovery  to  factory  setting

• Holiday  fucntion

• Manual  Heating

• Temperature  query  function

• Memory  Protection

• Screen  protection

• Trouble  shooting

• Trouble  protection

• Trouble  checking

1.3 Delivery scope

Components	Quantities	Remarks
Solar pump station	1pc	SR881
Integrated solar controller	1pc
Collector sensor PT1000	1pc
Store sensor NTC10K	2pcs
Wall mounting bracket	1bag
Accessory bag	1pc	2*crew and dowel;2*strain relief
Power cable	1pc	10A
Manual	1pc

2. Technical Parameters

2.1 Technical parameters

Parameter	Value
Power supply	220V50Hz/AC,110V60Hz/AC
Power consumption	< 2W
Measure accurate	± 2ºC
Measure scope of collector sensor	-10~220ºC
Measure scope of tank sensor	0~110ºC
Available power of R1 electrical themal trace	<300W
Available pump P2 can be controlled	Pump power <200W
Available electrical heater can be controlled H1	1 heater,heater power≤ 1500W
T1	Collector:1*PT1000,≤ 500ºC(Sillicon cable ≤ 280ºC)
T2,T3	NTC10K,B=3950,≤ 135ºC(PVC cabke ≤ 105ºC)
T4,T5,T6,T7	Optional sensor:                            NTC10K,B=3950,≤ 135ºC(PVC cabke ≤ 105ºC)
Amblent temperature	-10~50ºC
Water proof grade	IP41

2.2 Size

Product:40cm×20cm×14.5cm,5.5kg

Package:44cm×30cm×19cm,6kg

2.3 Optional accessories

2.3.1 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:

2.3.2 Digital flow counter FRT(A17)

Flow check:The flow counter is used for measurement and display of flow rate, in order to guarantee the flawless function of the measuring device the system must be flushed and free from foreign substances.

3. Product Installation

3.1 SR881 Installation diagram