Summary of Contents for Senztek SolaStat-Plus-ET
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Page 1: Installation Guide
SolaStat -Plus-ET Installation Guide FOR QUALIFIED PERSONNEL ONLY Version1.2 July 2011... -
Page 2: Table Of Contents
-Plus-ET Plumbing Issues ..............24 Trouble Shooting Guide ..................27 SolaStat -Plus-ET Specifications ..............28 For technical help contact your distributor. Distributor Details: Contact: ……………………………………………………………….….. Phone: ……………………………………………………………….….. Address: ……………………………………………………………….….. …………………………………………………………………... …………………………………………………………………… www.senztek.com Senztek Holdings Ltd. 2008 Table of Contents Installation Guide... -
Page 3: The Display Panel
Installation Guide for the SolaStat™-Plus-ET ISPLAY ANEL When the ROOF light Power light When the t appears at the left The PUMP light is on The TRAN light indicates is on, the temperature indicates that side of the screen, it indicates when solar heated that Energy Transfer of the collector sensor... -
Page 4: Functions
Installation Guide for the SolaStat™-Plus-ET UNCTIONS ’ The SolaStat -Plus-ET is a solar hot water controller that efficiently ’ manages your hot water system. It measures water temperatures at three different places in the system and turns on a water pump at the optimum time. -
Page 5: Tm -Plus-Et
Installation Guide for the SolaStat™-Plus-ET UNCTIONS ONTINUED There are a number of built in functions that enable the SolaStat -Plus-ET to manage temperature and power usage efficiently: ENERGY TRANSFER function allows excess hot water to be transferred to an external load when the tank reaches to an adjustable preset temperature. - Page 6 Installation Guide for the SolaStat™-Plus-ET SING Reading the There are 3 parameters that can be displayed individually: Display ROOF Temperature TANK Temperature INLET Temperature To read each reading, follow the steps below. 1. When switching on the power, the TANK light will be on, and the...
- Page 7 Installation Guide for the SolaStat™-Plus-ET -ET, SING ONTINUED 6. Press 5. The ROOF light proceed and the is on and the Roof display will temperature is return to the displayed, in this tank case 70 º temperature display. Version 1.2 – July 2011 Page 5...
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Page 8: Before Installation
Installation Guide for the SolaStat™-Plus-ET EFORE NSTALLATION Assemble the The SolaStat -Plus-ET solar hot water controller includes the following components components: you will need Roof sensor TANK sensor INLET sensor SolaStat -Plus -ET Controller Associated screws ... - Page 9 freezing damage to the solar collector. Alteration of installer level program values outside those recommended values recommended by SolaStat / Senztek and other parts suppliers (especially hot water tank manufacturer’s maximum recommended temperature) can lead to dangerous conditions and/ or damage to parts of the solar hot water system.
- Page 10 Installation Guide for the SolaStat™-Plus-ET EFORE NSTALLATION ONTINUED CAUTION: Dangerous Voltages may be present. The SolaStat has no user serviceable parts. Protective enclosure only to be opened by qualified personnel. Remove ALL power sources before removing protective cover. Electrical 1. All mains voltage electrical work to be carried out by a qualified Precautions: electrician, especially external power outlet socket installation.
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Page 11: Tm -Plus-Et
Installation Guide for the SolaStat™-Plus-ET OUNTING THE Where to The SolaStat -Plus-ET must be mounted so that: mount the 1. it is against a flat surface with sufficient strength to hold the enclosure SolaStat and any additional weight from the plugs, sockets and cables, Plus-ET 2. -
Page 12: Mounting The Sensors
The 2m Tank Sensor (Labelled ‘TANK SENSOR’- connects to the top of the hot water tank) is best fitted into a metal immersion ’pocket’ in the upper region of the hot water tank. Senztek also offer mounting solution called an S3. For the SolaStat -Plus-ET, the position of the tank sensor will establish the control point the energy transfer function works from. - Page 13 Installation Guide for the SolaStat™-Plus-ET OUNTING THE ENSORS ONTINUED Warning When mounting the sensors please note the following points carefully: 1. Removing or cutting the cladding may void hot water tank warranty. 2. Sensors must not be immersed in water 3.
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Page 14: Installation And Wiring
Installation Guide for the SolaStat™-Plus-ET NSTALLATION AND IRING Connect the Plug in the pump to the PUMP socket on the SolaStat -Plus-ET. This Pump should not exceed the 2hp load rating as specified on the label on the side of the enclosure. -
Page 15: Powering Up
Installation Guide for the SolaStat™-Plus-ET OWERING Before you Make sure you have read the safety instructions, warnings and limit of liability Connect the and that you have completed installation, and securely mounted the unit in Power place before you connect power to the unit. Ensure suitable over-current protection and RCD Protection for the SolaStat -Plus-ET is in place.Check that there is no water, metal shavings... -
Page 16: Installer Programming
Installation Guide for the SolaStat™-Plus-ET NSTALLER ROGRAMMING There are eight parameters that can be adjusted. Adjustable Values - This programming is to be performed by qualified installers only. Incorrect Overview values can cause deficiencies in the system, or cause damage to the system voiding the warranty. - Page 17 Installation Guide for the SolaStat™-Plus-ET NSTALLER ROGRAMMING ONTINUED Energy Transfer Mode Triggers the Energy Transfer Pump to circulate the Energy isolated heated water stored in the tank to an external load such as Transfer swimming pool, under floor heating or spa pool, etc. It triggers at different Mode temperatures in summer and winter to allow choosing different loads.
- Page 18 Installation Guide for the SolaStat™-Plus-ET NSTALLER ROGRAMMING ONTINUED This is the value stored as the maximum allowable hot water tank Topout temperature. If the tank reaches to the topout temperature, ‘t’ will be displayed at the left side of the screen for ROOF/TANK/INLET reading. The pump will be disabled until the temperature drops at least 2ºC lower.
- Page 19 Installation Guide for the SolaStat™-Plus-ET NSTALLER ROGRAMMING ONTINUED Adjustable The unit will need to be programmed where the adjustable values from the Values factory are inappropriate for the installation. Once new values are stored, Worksheet they are permanently written into memory and will be retained when power is removed.
- Page 20 Installation Guide for the SolaStat™-Plus-ET NSTALLER ROGRAMMING ONTINUED How to program Adjustable Values A) To enter Installer Programming Mode follow these steps: 2. All the display lights will come on for a few 1. Press the seconds. Wait key. for the pump counter to display.
- Page 21 Installation Guide for the SolaStat™-Plus-ET NSTALLER ROGRAMMING ONTINUED B) Enter Adjustable Values Note 1: The PUMP light will be flashing. The unit is now ready to accept the first value entry. Note 2: After each key press, you have a minute to press another key before the unit times out.
- Page 22 Installation Guide for the SolaStat™-Plus-ET NSTALLER ROGRAMMING ONTINUED For example: Pump Off 6ºC Pump On 12ºC Energy Transfer Off in Summer 60ºC Energy Transfer On in Summer 70ºC Energy Transfer Off in Winter 40ºC Energy Transfer On in Winter 55ºC Frost 4ºC Topout...
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Page 23: Sensor Maintenance
Installation Guide for the SolaStat™-Plus-ET ENSOR AINTENANCE Lengthening Poor connections or induced interference can cause false temperature Sensor Wire readings. The sensor wire can be lengthened within certain guidelines: The sensor is not polarized – it can be connected either way around. ... - Page 24 Installation Guide for the SolaStat™-Plus-ET Replacing a If a damaged sensor needs to be replaced then the cover of the Sensor enclosure will need to be opened unless the choice is made to join the wires externally (see Lengthening Sensor Wire section above). 1.
- Page 25 10. Replace the lid, replace the 4 screws and tighten. 11. Push in 4 new screw covers available from your distributor or Senztek Ltd. Note: there are locating lugs to ensure correct orientation. 12. Reconnect the SolaStat -Plus-ET and turn on the power.
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Page 26: Solastat Tm -Plus-Et Plumbing Issues
Any solar hot water system involves professional level plumbing and water much hotter than would normally be seen in standard domestic hot water systems. For this reason Senztek NZ Ltd recommends any installation is carried out by a registered and qualified plumber. All parts including the pump must be rated for the elevated temperatures found in solar hot water systems. - Page 27 Installation Guide for the SolaStat™-Plus-ET TM-P -ET P LUMBING SSUES ONTINUED Air Relief It is important that air relief valves are fitted (especially in a low pressure Valves / system) to the highest point of both the feed to and the return from the solar Vacuum water collectors.
- Page 28 Installation Guide for the SolaStat™-Plus-ET TM-P -ET P LUMBING SSUES ONTINUED Minimising To minimise cavitation: Cavitation 1. Make sure the pump is appropriate for the installation. 2. If a variable speed pump is used then select the best setting (a slower speed that still has enough head pressure is best as this will create the lowest pressure difference in the pump).
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Page 29: Trouble Shooting Guide
Installation Guide for the SolaStat™-Plus-ET ROUBLE HOOTING UIDE Symptom Cause Solution No operation, no display and No power Check mains outlet. no lights. Check fuses. POWER light ON but no Power brown out (power not Switch off power while mains power is in brown out display or corrupted display. -
Page 30: Solastat Tm -Plus-Et Specifications
Installation Guide for the SolaStat™-Plus-ET -ET S PECIFICATIONS Power Supply. Supply Voltage. 85~264Vac/dc (Standard model) 22~85Vdc. (Must be specified at time of ordering.) 10~28Vac/dc. (Must be specified at time of ordering.) Max power usage. 5VA + external loads. Relay Outputs Three options are available (All ratings at 240Vac) Supply Voltage.
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