Senztek Solar Hot Water SolaSmart PLUS Differential Controller

Senztek Solar hot water SolaSmart PLUS Controller 

Plumbonline are pleased to announce we are extending our solar hot water spare parts catalogue  We have all the major spare parts for your solar hot water service wether it be flat plate panels or evacuated tubes. 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, Plumbonline has a committed team of specialists with over 30 years of solar hot water selection experience.

Who are Senztek?

Senztek are a New Zealand owned electronics designer and manufacturer. They supply the leading manufacturers with controllers, AAE - Bosch - Edson - Hills - SolarArk to name but a few. Their smart energy controllers including the SolaStat 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.

Overview

The Senztek SolaStat PLUS is the latest model of Differential Solar Controller from the New Zealand based manufacturer. The SolaStat 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 allowing the system to restart solar gain harvesting when the tank temperature drops below the the Set Top Out temperature when the collector is still at stagnation temperatures. Simply put the solar gain harvesting is obtained by a three stage system of control providing your system to collect the maximum solar gain and avoid the onset of collector stagnation not to mention avoiding the loud banging associated with thermal shock. (caused by super heated water) The Boost is a One-Hit" function with a smart re-set when target temperature is reached, element can also be set to meet for operating times minimising the households electricity usage for hot water heating.

SOLAR HOT WATER CONTROLLER TECHNICAL SPECIFICATIONS

The standard installation kit includes:

• 1 x 3m PVC Inlet Sensor
• 1 x 3m PVC Tank Sensor
• 1 x 20m Teflon/PVC Plug In Sensor

Technical 

• 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)