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ECO2 Systems SANCO2 SAN-119GLBK - User Manual

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SANCO
2
Heat Pump – Owner’s Manual
Page 1 of 28
Sanden Heat Pump Installation Manual
Page 1 of 40
.
Page title
Covering model numbers for residence
Heat Pump Unit GS3-45HPA-US

This appliance is not to be installed by unqualified and unlicensed persons,
please read and understand this manual prior to installing and operating the unit.
This manual is for TO BE USED
by the installing Contractor
only.
20916700 (K)
Sanden Heat Pump Owners Manual
Page 1 of 24
Page title
Covering model numbers for residence
Heat Pump Unit GS3-45HPA-US

This appliance is not to be installed by unqualified and
unlicensed persons, please read and understand this manual
prior to installing and operating the unit.
OOwwnneerrss mmaannuuaall
Owner’s Manual
SANCO
2
Heat Pump Water Heater with Natural Refrigerant(CO
2
)
Heat Pump Unit
Tanks
: GS4-45HPC
: SAN-43SSAQA
SAN-83SSAQA
SAN-119GLBK

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Questions and Answers

  • D
    Daniel BrooksAug 9, 2025
    Why is there no hot water coming out of my ECO2 Systems SANCO2 SAN-119GLBK tap?
    • M
      Michele RhodesAug 10, 2025
      If no hot water is coming from your ECO2 Systems Water Heater tap, it could be due to a low water temperature. Try stopping hot water usage and wait for about 1 hour. Other potential causes include issues with the electricity supply's off-peak mode, blockages in the filter, piping bends or crushes, frozen pipes, a closed valve, or obstructions blocking airflow through the evaporator. Make sure to check these components and resolve any identified issues.
  • S
    Sarah ContrerasNov 18, 2025
    What to do if no hot water comes out of my ECO2 Systems Water Heater tap?
    • S
      stephen37Nov 18, 2025
      If you're not getting any hot water from your ECO2 Systems Water Heater, several factors could be the cause. First, the storage tank might be low or empty. Try waiting about an hour after stopping hot water usage to see if it replenishes. Also, consider switching your electricity supply to off-peak mode, as the power supply hours may be too short for adequate water heating. Another potential issue is air trapped in the heat pump system; you can remove this by opening the water drain plugs on the Heat Pump Unit, being careful of burns. A blocked filter on the cold inlet connector could also be the culprit—check and clear any blockages. Additionally, inspect the piping for bends, blockages, or crushes that may be restricting water flow. If pipes are frozen, melt the ice and provide heat insu...
  • R
    rsteinDec 1, 2025
    What to do if my ECO2 Systems Water Heater has no hot water?
    • T
      Tanya WilsonDec 1, 2025
      If no hot water is coming from your ECO2 Systems Water Heater, several factors could be the cause. First, the storage tank might be depleted; stop using hot water and wait about an hour. Second, there might be insufficient air removal from the heat pump system; open the water drain plugs on the Heat Pump Unit to remove air, being cautious of burns. Third, the filter on the cold inlet connector could be blocked; inspect and clear any blockages. Fourth, the water flow speed might be reduced due to piping issues; check for bends or crushes in the piping. Fifth, frozen pipes could be the issue; melt any ice on the pipes and insulate them. Sixth, a closed stop valve could be the culprit; ensure the valve is open. Finally, insufficient air absorption due to evaporator blockage could be the probl...

Summary

Safety Precautions

Scalding Hazard Warning

Warns about severe burns and death from hot water over 125°F, with a table of burn times.

General Warning Statements

Electrical and Mechanical Warnings

Electrical Safety Warnings

Warns against using damaged cords, ensuring proper insulation, and not disassembling the unit.

Physical Handling Warnings

Warns against poking fingers into the unit or opening covers, and about potential electric shock or injury.

General Cautionary Advice

Installation and Connections

Installation Details

Details installation requirements, licensing, and pressure considerations.

Mandatory Safety Device

Emphasizes the mandatory installation of a temperature tempering device to prevent scalds.

Mains Power and Electrical Installation

Covers electrical installation requirements, codes, and circuit breaker specifications.

Connecting Main Power Supply

Step-by-step guide on how to connect the main power wiring to the terminal block.

Trouble Shooting Guide

No Hot Water or Low Temperature Issues

Lists causes and actions for when no hot water or low temperature is experienced.

Error Codes

Error Code List

A comprehensive list of error codes related to thermistors, compressor, PCB, and other system functions.

Filling the System & Bleeding Air

Air Bleeding Procedure

Details the process for bleeding air from the tank and heat pump units using specific valves and faucets.

Water Supply Quality

Heat Pump Unit Specifications

Residential Warranty Policy

ECO2 Systems SANCO2 SAN-119GLBK Specifications

General IconGeneral
BrandECO2 Systems
ModelSANCO2 SAN-119GLBK
CategoryWater Heater
LanguageEnglish

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