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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. LIMITED   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

$329.13 / 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. LIMITED   By Goldline Controls

$354.39 / 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-0036   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

$255.03 / 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

$696.72 / Each