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CD-0016   Solar differential thermostat for solar domestic hot water systems. Includes line cord and outlet for 120 Volt plug in operation.   By Goldline Controls

$295.79 / Each

CD-0018   Solar differential thermostat for solar domestic hot water systems. Includes two sensors. Hard wire to pump and line for 120/240 Volt AC systems. BACKORDERED   By Goldline Controls

$290.70 / Each

CD-0019   Solar differential thermostat for solar domestic hot water systems. Includes two sensors. Includes line cord and and outlet for 110 Volt plug in operation. BACKORDERED   By Goldline Controls

$345.81 / Each

CD-0030   Solar differential thermostat for solar domestic hot water systems. Requires two 10K temperature sensors. For use as a stand alone control or as a replacement for the Heliodyne HPAK standard control. Comes with line cord and pump cable.   By Heliodyne   Special Order Item

$148.66 / Each

CD-0035   Heliodyne DTT-84 120V solar differential controller. Hardwire connections for AC and pump output. Requires (2) 10K temperature sensors. PC board is a direct replacement for early model Heliodyne General DTT-84 controls and will fit existing boxes. DISCONTINUED   By Heliodyne

$0.00 / Each

CD-0076   Heliotrope Pool Model 5000C solar pool heating control for solar pool heating systems. Hard wire for 120/240V AC with 24 volt and pump relay output. Adjustable temperature setting. Includes two 10k sensors and Heliopool Floweverter valve.   By Heliotrope General

$423.98 / Each

CD-0089   SunEarth SEProX (RESOL DeltaSol BX) differential temperature control with digital temperature display, programmable functions for solar domestic hot water and 26 selectable system layouts. 100-240 Volt operation. Control requires minimum of 2 sensors (5 are included) and will accept up to 5 PT1000 sensors, 1 Grundfos VFS sensor, and 1 Grundfos RPS sensor. There are three semiconductor outputs and one relay output for pumps or valves, as well as one output for VBUS date transfer. Equipped with a factory installed cord.   By SunEarth Inc.

$432.42 / Each

CD-0090   Striebel Eltron SOM 9 Plus (RESOL DeltaSolBX Plus) diffferential temperature control with digital temperature display, programmable functions for solar domestic hot water systems and 10 selectable systems layouts. 100-240 Volt operation. Control requires minimum 2 sensors (5 are included) and will accept up to 8 sensors. There are four semiconductor outputs and one relay output for pumps or valves and one output for VBUS data transfer. Equipped with a factory installed cord.   By Steibel Eltron   Special Order Item

$582.90 / Each

CD-0091   Stiebel Eltron SOM 10 is a private label RESOL DeltaSol Mx. Differential temperature control with digital display, programmable functions for solar domestic hot water systems and 29 selectable system layouts. 100-240 Volt operation. Control requires minimum of 2 sensors (6 are included) and will accept up to 12 sensors. There are 13 semiconductive outputs and one relay output for pumps or valves, as well as one output for VBUS data transfer. Equipped with a factory installed cord.   By Steibel Eltron

$977.28 / Each