SR981S/SR982S operation manual of solar pump station
Page 72 of 85
►Repress “SET” button, parameter “AHO 50
o
C” appears
and “50
o
C” blinks on the screen, it indicates the function
is enabled.
►Press “ ” button to adjust switch-on
temperature of this function, adjustable range (5
o
C
～
95
o
C
）
► Press “ESC” button to exit the menu
►Press “ ” button, “AHF 55
o
C” appears on the screen, and “55
o
C” blinks on the
screen
, default is “55
o
C”
►Press “ ” button to adjust switch-off
temperature of this function, adjustable range (5
o
C
～
95
o
C
）
► Press “ESC” button to exit the menu or wait for 20 seconds to exit automatically,
parameters are saved automatically.
When this sign shows on the screen, it indicates that the thermostat function is
activated.
8.5.15 BYPR Bypass function (high temperature)
Description:
By bypass electromagnetic valve R1 (detailed see 6.7 system description), collector is
switched either to heat tank or to preheat the pipe between collector and tank; first of all,
temperature difference between collector T1 and tank T2 should meet the switch-on
temperature difference (DT1O), then
When bypass temperature (T4) is higher than (tank tempe switch-off temperature
difference (DT1F) +2
o
C), electromagnetic valve will switch collector to heat tank.
When bypass temperature (T4) is lower than (tank temperature + switch-off temperature
difference (DT1F)), electromagnetic valve will switch collector to heat pipe.
(Note:The function only available on system1,2)
Setup steps:
To access submenu BYPR, “BYPR OFF” displays on the screen.
►Press “SET” button, parameter “OFF” blinks on the screen, default set is OFF.
