Senztek SolaSmart Lite Controller (includes free thermal heat paste)


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Senztek SolaSmart Lite Controller

The Senztek SolaSmart Lite Controller was commonly used by Solar Ark and Heavenly Solar, as well as a few other brands.

Solar Hot Water Parts includes heat transfer paste and joiners with this controller. 

Who are Senztek?

Senztek is a local based New Zealand electronics designer and manufacturer that has had a huge impact on the Australian solar hot water market. Their quality range of solar hot water controllers has been purposely built to suit our climate. They supply a large number of leading manufacturers globally - Apricus; AAE; Bosch; Edson; Hills; Neopower; Rotex; SolarArk; Stratco; SolarOz; Solarland; Thermotec; Zen, Sky solar- just to name a few.

Their smart energy controllers include the SolaStat; SolaStat-Plus; SolaStat ST; SolaStat WR; AlphaStat; EcoStat; SolaStat-Pool and the new SolaSmart range. Senztek has spent many years developing and perfecting advanced algorithms and associated controllers able to deliver real savings for solar and electric hot water users.

Solar Hot Water Parts is an approved Senztek distributor of the complete Senztek range. We are continually extending our solar hot water spare parts catalogue to give you the best selection of solar hot water replacement parts to choose from.

We sell the widest range of spare parts to suit any solar hot water service, whether it be a flat plate panel or evacuated tube solar collector. The Solar Hot Water Parts range is now online and ready to order, with complete tech specs to ensure your seamless selection.

If you're unsure which part suits, simply contact us - click here



POWER SUPPLY Supply Voltage 240 Vac +/- 10% 50 to 60 Hz
Quiescent power usage 2VA typical
RELAY OUTPUT PUMP: 10A (240Vac) Resistive (element) ½ HP/375W (240Vac) Motor rating (0.4cos⏀) Zero Crossing contact closure / open Voltage from input switched through this output
HWC: 16A max @ 240Vac (3.6kW max) Resistive (element) 1.5 HP/1100W (240Vac) Motor rating (0.4cos⏀) Zero Crossing contact closure / open Isolated contacts only provided
PWM OUTPUT (Only for connection to an intelligent variable speed pump e.g. Grundfos Solar PM 15-85) 1kHz +/- 10% pulse repetition rate Max drive 5mA avg at 9-14 volts. Peak 1.5Amps Max 5 meter cable to pump SENSORS PVC
SENSORS -20 ~ +120°C tip, 5.8mm diameter stainless steel -20 ~ +105°C cable, UV resistant Silicone Sensor -20 ~ +250°C peak tip, 5.8mm diameter stainless steel -20 ~ +180°C cable, UV resistant Accuracy +/-1°C @ 25°C
REAL TIME CLOCK Backup interval (no power) 14 days min (after 4 hour full charge cycle) Accuracy Max 30 sec per month drift
EMC AND SAFETY COMPLIANCES Emissions EN 55022-A, CTick Immunity EN 50082-1 Safety Compliance AS/NZ 60950.1:2003, CTick AS/NZ 3820:2009 AS/NZ 2712:2007

General Specifications

Control Range -40 ~ +299°C Operating Temperature 0~60°C Operating Humidity 5 ~ 85% RH. Non-Condensing Enclosure Construction Polycarbonate - Impact Resistant UL94 V-2 Non Burning, UVA & B Stabilised Water resistant to IP54 (unless otherwise stated in other input specifications)
Dimensions L = 167mm (excluding glands and cables) W = 142mm H = 40mm Weight 1600grams (Standard model + cables + sensors + packaging)