Sanden Heat Pump – Installation Manual Page 1 of 32 Covering model numbers GAUS-315EQTD GAUS-315EQTE Heat Pump Unit GAU-A45HPA
Sanden Heat Pump – Installation Manual Page 10 of 32 Figure 6: Typical System piping Shut off valves Check valves Water
Sanden Heat Pump – Installation Manual Page 11 of 32 Mains Power/Electrical Installation All Electrical Wiring should be done in accordance with
Sanden Heat Pump – Installation Manual Page 12 of 32 Figure 10: Power Wiring Connections Ground 208/230V Power
Sanden Heat Pump – Installation Manual Page 13 of 32 How to connect Tank thermistor cable to Heat Pump unit The thermistor cable and conduit leng
Sanden Heat Pump – Installation Manual Page 14 of 32 System operation using continuous power The system runs its water heating cycle once a day
Sanden Heat Pump – Installation Manual Page 15 of 32 The basic system installation is now complete, the unit is now ready for init
Sanden Heat Pump – Installation Manual Page 16 of 32 Filling the System & Purging Air The following steps must be taken to ensure all air is rem
Sanden Heat Pump – Installation Manual Page 17 of 32 Freeze protection Even if the water pipes have been insulated, the piping can freeze if the
Sanden Heat Pump – Installation Manual Page 18 of 32 Unit Operation Time setting and Blackout time setting Current time setting This product conta
Sanden Heat Pump – Installation Manual Page 19 of 32 Blackout time setting mode This mode is used to set the blackout time that stops the heat pump
Sanden Heat Pump – Installation Manual Page 2 of 32 Contents Cover page ...
Sanden Heat Pump – Installation Manual Page 20 of 32 Maintenance Mode Figure 12 Maintenance mode Maintenance mode is a function to check the hea
Sanden Heat Pump – Installation Manual Page 21 of 32 How to switch to Maintenance Mode Press and hold down Up and Down keys together in the clock di
Sanden Heat Pump – Installation Manual Page 22 of 32 Error Codes When an error occurs, a red LED on the timer setting panel turns on and an error cod
Sanden Heat Pump – Installation Manual Page 23 of 32 Notes: 1. After a component is replaced or the inspection is completed, turn the unit on/off se
Sanden Heat Pump – Installation Manual Page 24 of 32 Water Supply Quality (Supplemental) Chloride and PH In areas with a high concentration of chlo
Sanden Heat Pump – Installation Manual Page 25 of 32 Dimensions and Technical Data Hot water storage tank unit GAU-315EQTE Storage capacity
Sanden Heat Pump – Installation Manual Page 26 of 32 Heat pump unit GAU-A45HPA Refrigerant type R744(CO2) Product weight 123lbs/56 kg The
Sanden Heat Pump – Installation Manual Page 27 of 32 Wiring Diagram
Sanden Heat Pump – Installation Manual Page 28 of 32 Warranty Policy Warranty Conditions 1. The Sanden Heat Pump Water Heater System must be insta
Sanden Heat Pump – Installation Manual Page 29 of 32 Cont 7. Where the unit fails to operate or fails as a result of ice formation in the piping t
Sanden Heat Pump – Installation Manual Page 3 of 32 Introduction The Sanden Heat Pump Water Heater System has been designed using the latest refrig
Sanden Heat Pump – Installation Manual Page 30 of 32 Post installation inspection checklist On completion of the installation, inspect and check off
Sanden Heat Pump – Installation Manual Page 31 of 32 Check sheet Safety items Action Completed Fix the tank unit in place with anchor bolts
Sanden Heat Pump – Installation Manual Page 32 of 32 Memo -------------------------------------------------------------------------------------------
Sanden Heat Pump – Installation Manual Page 4 of 32 Installation details This Heat Pump Water Heater System must be installed by licensed personnel
Sanden Heat Pump – Installation Manual Page 5 of 32 Installation location For the most efficient operation of the heat pump unit the optimum loca
Sanden Heat Pump – Installation Manual Page 6 of 32 Figure 4: Restrictions on installation between the tank unit and the heat pump unit Heat Pump U
Sanden Heat Pump – Installation Manual Page 7 of 32 Cont The only adjustment required is to the current time setting on the timer setting panel unde
Sanden Heat Pump – Installation Manual Page 8 of 32 Cont This product cannot be connected to a solar water heater. The piping must be appropr
Sanden Heat Pump – Installation Manual Page 9 of 32 Heat Pump Unit Water piping Connect the heat pump unit COLD supply to the tank unit fitting m
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