Yaskawa iQpump Manual Supplement - Manual (Page 22)

8 Geothermal Mode
22 YASKAWA TM.iQp.10 iQpump Technical Manual Supplement
Figure 4
Figure 4 Digital Operator Display Showing Geothermal Mode Operation
Parameter No. Parameter Name Description Range Default
P4-33 Minimum Geothermal Speed
Sets the frequency reference characteristics based on the set
temperature points and the corresponding frequency.
For proper operation, P4-34 > P4-33 and P4-38 > P4-37 > P4-36 >
P4-35.
Geothermal Mode Frequency/Temperature Characteristic|
(Normal Operation)
.
Geothermal Mode Frequency/Temperature Characteristic
(Inverse Operation)
0.00 ~
120.00 Hz
40.00 Hz
P4-34 Maximum Geothermal Speed
0.00 ~
120.00 Hz
40.00 Hz
P4-35
Low Temperature to Run at
Maximum Geothermal Speed -110.0 ~
450.0 °F
55.0 °F
P4-36
Low Temperature to Run at
Minimum Geothermal Speed -110.0 ~
450.0 °F
65.0 °F
P4-37
High Temperature to Run at
Minimum Geothermal Speed -110.0 ~
450.0 °F
75.0 °F
P4-38
High Temperature to Run at
Maximum Geothermal Speed -110.0 ~
450.0 °F
85.0 °F
Maximum
Geothermal Speed
㩿㪧㪋㪄㪊㪋㪀
Minimum
Geothermal Speed
㩿㪧㪋㪄㪊㪊㪀
Low Temp
@ Max
㩿㪧㪋㪄㪊㪌㪀
Low Temp
@ Min
㩿㪧㪋㪄㪊㪍㪀
Temperature (°F)
High Temp
@ Min
㩿㪧㪋㪄㪊㪎㪀
High Temp
@ Max
㩿㪧㪋㪄㪊㪏㪀
Maximum
Geothermal Speed
㩿㪧㪋㪄㪊㪋㪀
Minimum
Geothermal Speed
㩿㪧㪋㪄㪊㪊㪀
Low Temp
@ Max
㩿㪧㪋㪄㪊㪌㪀
Low Temp
@ Min
㩿㪧㪋㪄㪊㪍㪀
Temperature (°F)
High Temp
@ Min
㩿㪧㪋㪄㪊㪎㪀
High Temp
@ Max
㩿㪧㪋㪄㪊㪏㪀