Senztek SolaSmart Plus Controller (includes free thermal heat paste)


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Senztek SolaSmart Plus Controller (includes free thermal heat paste)

The Senztek SolaSmart Plus is the latest model of Differential Solar Controller from Senztek. The SolaSmart Plus has all the features of the previous models (SolaStat 1-2 and 1-3) but with the addition of a smart "Top-Out" feature and element "Boost". The smart "Top-Out" has a two stage control, which allows the system to restart solar gain harvesting when the tank temperature drops below the set "Top Out" temperature, when the collector is still at stagnation temperatures. The "Boost" is a one-hit function with a smart re-set, when the target temperature is reached. The element can also be set to operate at times that best suit the household's needs, minimising electricity usage.

Solar Hot Water Parts includes heat transfer paste and joiners with this controller. We are also trialling free 5ml silicone tubes to help make replacement even easier.

Solar Hot Water Controller installation kit includes:

1 x 3m PVC Inlet Sensor
1 x 3m PVC Tank Sensor
1 x 20m Teflon/PVC Plug In Sensor including free thermal heat paste

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 SolaStat 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)