SolaStat-Plus Programming Table for Adjustable Values.
seulaVelbatsujdArofelbaTgnimmargorP
seulaVelbatsujdA noitacidnithgiL lacipyT egnaR noitcnuF/elbasiD
)laitnereffid(ffopmuPgnihsalfpmuPC6C02-1a/n
)laitnereffid(nopmuP ydaetspmuP C21 C12-2 a/n
*remiTffodloH*ydaetsCWH*srh4*srh32-1
.'rht'=yalpsiD.edoMtatsomrehT=rh1<
.'FFO'=yalpsiD.edoMtaeheR=srh32
>
*rewoLtaeheR *hsalfwolsCWH *C04 *C07-1 .'FFO'=yalpsiD.elbasiD='rht'ffodloHroC1<
*reppUtaeheR*hsalftsafCWH*C55*C09-2.'FFO'=yalpsiD.'FFO'rewoLtaehe
R&'FFO'ffodloH
*efaSoiB *llatasthgiloN *C06 *C07-05 .'FFO'=yalpsiD.elbasiD=C05<
tuopoTydaetstuopoTC08C021-1.'FFO'=yalpsiD.elbasiD=C1<
tsorF ydaetstsorF C4 C01-1 .'FFO'=yalpsiD.elbasiD=C01>
Notes on SolaStat-Plus Programming. Also refer principle of operation.
1. Pump ON must always be higher than Pump OFF.
2. Reheat upper must always be higher than reheat lower.
3. A disabled value is indicated by ‘OFF‘
4. Fill out programming record in User Guide.
Pump ON and Pump OFF.
Technically Pump ON and Pump OFF values are the ‘Roof’ sensor temperature minus the ‘Inlet’ sensor
temperature and are called differential temperatures.
Example. Pump ON = 12C and Pump OFF = 6C.
When the solar collector has risen to 12C hotter than the HWC the Pump turns on.
When the solar collector has fallen to 6C hotter than the HWC the Pump turns off.
· In a high temperature system like domestic hot water relatively large Pump ON and pump OFF
differentials like 12C Pump ON, 6C Pump OFF transfer hotter water over shorter periods of time. Lower
temperature systems like swimming pools or underfloor heating gain more energy from the sun by transferring
more water at lower temperatures and so have typical Adjustable Values of 5C Pump ON and 2C Pump
OFF.
· Increasing the ‘Pump ON’ value will let the solar collector heat up more before heat is transferred to
the tank. The advantage is hotter water entering the tank but may mean less operations and lost energy on
partly sunny days.
· Increasing the ‘Pump OFF’ value will mean the overall temperature of the water coming from the
solar collector is hotter on average when the pump turns off. This will help overcome heat losses in pipes
ensuring the water entering the hot water tank remains hotter than the water already there but may result in
less energy being transferred as above.
· The ‘FROST’ Adjustable Value is critical to avoid damage to solar collectors. The appropriate value
depends on installation variables such as geographic location, angle and type of solar collector, sensor
placement, fluid used, etc. All of these must be considered when determining the ‘FROST’ value. This is the
installers’ responsibility. We recommend 4C as a minimum for the ‘FROST’ Adjustable Value in mild frost
areas only but this may need to be increased for some installations.
· Topout is mainly needed for ceramic lined hot water tanks and other fittings and caution should be
exercised to allow for stratification of hot water in the tank. We recommend a conservative value somewhat
lower than the hot water tank manufacturers’ maximum temperature. It is vital the sensor is mounted as
recommend in the installation guide for topout to work correctly.
SolaStat-Plus Pump ON / Pump OFF Adjustable Range.
*Functional with Dual Relay version only. Set to ‘OFF’ for Single Relay Version.
19.01-12
Pump ON
Adjustable 2~21C
Roof Sensor Solar Collector Temperature Pump ON
Roof Sensor Solar Collector Temperature Pump OFF
Inlet Sensor Cylinder Temperature
Temperature
Deg. Celsius
Pump OFF
Adjustable 1~20C
To Next Page
Loading...