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Sanden GAUS-300FQS, Owner'S Manual, Page: 2 / 20

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Contents 

Introduction ........................................................................................................................... 3 

How it works ......................................................................................................................... 3 

Installation details ................................................................................................................. 8 

Trouble Shooting Guide ........................................................................................................ 9 

Error Codes ........................................................................................................................ 10 

Removing air from the system ............................................................................................ 11 

Electrical connections ......................................................................................................... 12 

System operation, if connected to continuous power .......................................................... 12 

System operation if connected to off-peak electricity .......................................................... 12 

How to connect power line and thermistor cable ................................................................. 13 

Water Supply Quality .......................................................................................................... 14 

Change of water supply ...................................................................................................... 14 

Technical data .................................................................................................................... 15 

Maintenance Requirements

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7

Warranty P

olicy.

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...... 1

8

PATENTS 

This water heater may be protected by one or more patents or registered designs 

in the name of Sanden Australia Pty Ltd 

TRADE MARKS 

® Registered trademark of Sanden Australia Pty Ltd 

. 

Note: Every care has been taken to ensure accuracy in preparation of this publication. 

No liability can be accepted for any consequences that may arise as a result of its application. No liability can be 

accepted  for  any  consequences  that  may  arise  as  a  result  of  its  application.  Sanden  is  in  a  process  of 

continuous improvement; therefore, specifications may be different to those referenced in this manual – Please 

contact 

Rheem New Zealand 

for the latest specifications at the time of installation.

Sanden Heat Pump – Owner’s Manual 

Page 2 of 20 

 

Warranty Period...................

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1

9

Summary of Contents for GAUS-300FQS

Page 1: ...s GAUS 300FQS Heat Pump Unit GAU A45HPC This appliance is not to be used by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction Children not to play with the appliance ...

Page 2: ...re patents or registered designs in the name of Sanden Australia Pty Ltd TRADE MARKS Registered trademark of Sanden Australia Pty Ltd Note Every care has been taken to ensure accuracy in preparation of this publication No liability can be accepted for any consequences that may arise as a result of its application No liability can be accepted for any consequences that may arise as a result of its a...

Page 3: ...s currently available It s even more efficient when connected to off peak power and the noise level is so low it will operate unobtrusively throughout the night How it works The EcoPlus Hot Water Heat Pump System heats water by transferring the heat from the surrounding air to the water using a refrigerant The refrigerant is heated by a heat exchanger that absorbs heat from the surrounding air Fig...

Page 4: ...Sanden Heat Pump Owner s Manual Page 4 of 20 Do not touch the tap while hot water is being supplied ...

Page 5: ...Sanden Heat Pump Owner s Manual Page 5 of 20 LPG Please contact the EcoPlus authorized installer about insulating the pipes Contact the EcoPlus authorized installer for repair ...

Page 6: ...r failure and the performance of the unit not being guaranteed Anywhere the lowest temperature reached isbelow minus 10 degrees centigrade Indoors Applies only to the heat pump unit Anywhere not completely flat unstable or where drainage is difficult Ensure not to put anything around the heat pump unit Could result in poor performance and unexpected problems In the winter in particular please pay ...

Page 7: ...Sanden Heat Pump Owner s Manual Page 7 of 20 Do not install the unit anywhere it will be exposed to sea water or sea spray ...

Page 8: ... This system delivers hot water exceeding 55o C Reference should be made to AS NZ3500 and or local regulations relating to the need for temperature tempering devices The unit must be stored and transported in an upright position Failure to do so may render the unit faulty Such failure is not covered under any warranty agreements Failure to comply with the above conditions will void the warranty SA...

Page 9: ... blockage Water flow speed may be dropped due to the heat pump piping bend blockage or crush Check for any piping bend or crush and remove if any Pipes may be frozen If frozen area is found on the piping melt the ice on the pipe and provide heat insulation Stop valve is closed Open the valve Air absorption is not sufficient due to a blockage on the evaporator Remove the object blocking the air flo...

Page 10: ...ation error between main PCB to control PCB HC HP water outlet temperature thermistor error E8 High inlet current error J3 HP discharge temperature thermistor error H8 Current error J5 HP suction temperature thermistor error L4 High temperature of module error J6 HP Heat exchanger temperature thermistor error L5 High outlet current error J8 HP water inlet temperature thermistor error P4 Module tem...

Page 11: ...Refer to figure 4 1 Switching to Air Removing Mode Long press the Up and Down keys to switch to the Heat Setting Mode 2 Press the Up or Down keys to switch to the Air Removing Mode and press the Enter key Press the Up keys again to display APon then press the Enter key It will automatically go back to the clock display mode after 5 minutes Open the hot water taps in the home to remove air Close th...

Page 12: ... supply is cut off i e if it is connected to off peak power However the system will automatically start operation once the electricity becomes available System operation if connected to off peak electricity There are no special settings for the off peak connection The system will run once the power becomes available and the temperature in the tank drops below the set point of the tank thermistor I...

Page 13: ... Remove the piping cover screw clamp fitting Connect the power supply line to the terminal block Hold the power supply line below the terminal block with the screw clamp fitting Connect the thermistor cable line to the terminal block Hold the thermistor cable with the code clip and conduit clip Attach the piping cover back on the heat pump unit Figure 6 Connect power cables 25mm or less ...

Page 14: ...ive due to the dissolution of atmospheric contaminants Water with a pH less than 6 5 may be treated to raise the pH It is recommended that an analysis of the water from a rainwater tank be conducted before connecting this type of water supply to the system Figure 7 Change of water supply Changing or alternating from one water supply to another can have a detrimental effect on the operation and or ...

Page 15: ...Sanden Heat Pump Owner s Manual Page 15 of 20 Technical data Heat pump Unit Dimension All dimensions displayed in millimeter SPECIFICATION Tested under AS NZ5125 1 2014 requirements ...

Page 16: ...Sanden Heat Pump Owner s Manual Page 16 of 20 Hot water storage tank unit Refer Drawing provided with tank ...

Page 17: ...nts such as the relief valve s are not included in the Rheem warranty A charge will be made for this work Only genuine replacement parts should be used on this water heater The major service includes Replace the Temperature and Pressure Relief Valve Inspect and flush the Expansion Control Valve If required replace the valve Check and clean the heat pump module of dust and residue Check and inspect...

Page 18: ... Heat Pump itself is the sole discretion of Rheem on behalf of Sanden 3 Where Rheem determines at its sole discretion that the Heat Pump needs to be removed for repair Rheem may undertake such removal and may permanently replace the defective Heat Pump with a substitute Heat Pump that is in the reasonable opinion of Rheem in a better or equal condition to the repaired Heat Pump 4 Where a failed co...

Page 19: ...ray sulfur environments Where the unit fails to operate or fails as a result of ice formation in the piping to or from the EcoPlus Heat Pump Water Heater System Repair and or replacement of the EcoPlus Heat Pump Water Heater System due to scale formation in the waterways or the effects of either corrosive water or water with a high corrosive water supply or a water supply with a high chloride or l...

Page 20: ...SANDEN ECOPLUS Owners Manual NZ 320581 Rev A June 2020 Sanden Heat Pump Owner s Manual Page 20 of 20 Contact Rheem New Zealand Free Phone 0800 657 336 www rheem co nz ...

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