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ULTRATEMP ETI™ Hybrid Heater Installation and User’s Guide 

If you have questions about ordering Pentair Aquatic Systems, (“Pentair”) replacement parts, and pool products, 
please use the following contact information:

CUSTOMER SERVICE / TECHNICAL SUPPORT

Customer Service

 (8 A.M. to 4:30 P.M. — Eastern 

and Pacific Times)
Phone: (800) 831-7133
Fax: (800) 284-4151

Web site

Visit 

www.pentairpool.com

 or 

www.staritepool.com

 to 

find information about Pentair products.

Technical Support

Sanford, North Carolina

 (8 A.M. to 4:30 P.M. ET)

Phone: (919) 566-8000
Fax: (919) 566-8920

Moorpark, California

 (8 A.M. to 4:30 P.M. PT)

Phone: (805) 553-5000 (Ext. 5591)
Fax: (805) 553-5515

TABLE OF CONTENTS

Important Warning and Safety Instructions 

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General Information 

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Heater Introduction 
Installation Requirements
General Installation Information
General Features

Positioning the Heater 

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Materials Needed for Installation
Roof Run-off
Lawn Sprinklers
Equipment Pad 
Recommended Clearances
Flue Gas Condensation Management

Preventative Maintenance
Condensate Cartridge Service

Installation

 .............................................................

Anchor Clamp Installation
System Layout
Internal Automatic Flow Control Valve
Water Connections and Plumbing
Heat Pump Drainage Connection
Isolation and Check Valves
Manual Bypass Valve
Pressure Relief Valve (PRV)
Multi-Heater Installations
Solar Installations
Water Pressure Switch Adjustment 
Gas Connections

Gas Line Installation
Checking Gas Pressure Through Gas    

Control Valve

Sediment Traps
Gas Pressure Testing

Electrical Connections and Wiring

Wiring Diagram - Input
Wiring Diagram - Output

Connecting to an Automation System 

................

Remote Operation
Relay Remote Controls

Connecting to EasyTouch

 

via Heater Spade 

Terminals

Connecting to EasyTouch

 

via RS-485 Connector

Pin Configuration for Heater Control Board 

to EasyTouch

Connecting EasyTouch to the Heater 

Operating the Heater 

............................................

Swimming Pool Energy Saving Tips 
Control Panel Overview
Sequence of Operation
Pre-Startup

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Basic Operating Instructions
Turning Off Gas to the Heater
Safety Controls

Air Flow Switch (AFS)
Water Pressure Switch (WPS)
High Limit Switch (HLS) and Automatic Gas 

Shut-off Switch (AGS)

Stack Flue Sensor (SFS)
Thermal Fuse (TF)
Float Switch (CFS)
Ignition Module Operation

Operator Menu Tree Guide and Navigation
Using the Operator Menus

Starting and Stopping the Heater
Changing the Set Point
Efficiency Mode Selection
Heater Timer
Remote Mode - Relay
Remote Mode - RS-485 (Serial Cable)
Remote Mode - IntelliFlo

Timers and Delays
Control Panel Alarm Messages
Service Menu Tree Guide and Navigation
Using the Service Menus

Eco-Time
Boost Temperature
Setting Temperature Scale
Set Water Temperature Offset
Defrost Cycle
Run Time Counters

Locking the Control Panel

Maintenance 

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Water Chemistry

Total Alkalinity
Balancing pH
Disinfectant Residual

General Maintenance
Condensate Drainage
Winterizing
Spring Start Up
Professional Maintenance and Service

Technical Data 

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Electrical Supply - Voltage Requirements
Temperature Resistance Chart
Pressure Chart
Pressure Drop Curves

Troubleshooting 

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Replacement Parts 

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Heater Parts Breakdown
Parts List - Refrigeration and Outer Shell
Parts List - Gas System
Parts List - Electrical
Parts List - Plumbing

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P/N 475922  Rev. A  5/18/18

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Summary of Contents for ULTRATEMP ETi 220

Page 1: ...ENGLISH INSTALLATION AND USER S GUIDE HYBRID HEATER IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS SAVE THESE INSTRUCTIONS ULTRATEMP ETi ESPA OL FRAN AIS ENGLISH...

Page 2: ...to EasyTouch via Heater Spade Terminals Connecting to EasyTouch via RS 485 Connector Pin Configuration for Heater Control Board to EasyTouch Connecting EasyTouch to the Heater Operating the Heater Swi...

Page 3: ...the 100 F 38 C maximum rule 4 Before entering the spa or hot tub the user should check the water temperature with an accurate thermometer Spa or hot tub thermostats may err in regulating water temper...

Page 4: ...rbon monoxide detectors must be periodically inspected for proper operation so as to insure continued safety Broken or malfunctioning carbon monoxide detectors must be replaced immediately This heater...

Page 5: ...ral purpose water heater 4 The heater should be located in an area where leakage of the heater or connections will not result in damage to the area adjacent to the heater or to the structure When such...

Page 6: ...acket 4 Electric cutout switch that will interrupt all power to the unit This switch must be within line of sight of the heater Check local codes for requirements 5 Watertight conduit to run the elect...

Page 7: ...oth the plumbing and control panel side of the heater This will provide necessary room for servicing 2 At least 12 inches 305 mm of clearance must be available on all the other sides of the heater to...

Page 8: ...SIDE VIEW Building From building wall Exhaust Grill Vent 12 30 5cm Roof Overhang 4 1 2m 4 1 2m 12 30 5cm Must be at least 3 ft 0 9 m above any forced air inlet located within a 10 ft 3 5 m radius Vent...

Page 9: ...r drains and or pipes particularly those that are metal Ensure that the drain drainpipe and anything that will come in contact with the condensate can withstand the acidity Damage caused by failure to...

Page 10: ...location on the equipment pad 2 Place the clamps at the base of the heater in the eight 8 locations shown in Figure 5 Note Bolts and washers are not included with the heater The installer must provid...

Page 11: ...Install a chemical resistant one way check valve between the heater and the chemical feeder to prevent back siphoning through the heater when the pump is off Note If the heater is plumbed in backward...

Page 12: ...ressure Relief Valve Kit P N 475943 complying with the ANSI ASME Boiler and Pressure Vessel Code having a capacity equal to the Btu hr rating of the heater Note The relief pressure of the valve MUST N...

Page 13: ...um 3 PVC Pipe 2 PVC Pipe Flow Meter To Pool 3 Ball Valve Bypass Check Valves are optional on heater inlets but will help for system balancing 36 914 mm 2 PVC Pipe 2 PVC Pipe 2 PVC Pipe 3 PVC Pipe 3 PV...

Page 14: ...e plumbing system On some installations the piping from the heater to the pool is very short The back pressure could be too low to trigger the pressure switch If this happens install a directional fit...

Page 15: ...ipe as this may cause damage to the gas valve which may result in heater failure The gas meter should be checked to make sure that it will supply enough gas to the heater and any other appliances that...

Page 16: ...lve Risk of explosion if a unit burning propane gas is installed in a pit or other low spot Propane is heavier than air Do not install the heater using propane in pits or other locations where gas mig...

Page 17: ...Remove the long side service panel of the heater cabinet There is no need to remove the star head screws 2 Remove the short side service panel to the heater electrical compartment 3 Remove the sheet m...

Page 18: ...14 ULTRATEMP ETI Hybrid Heater Installation and User s Guide Wiring Diagram Input Side...

Page 19: ...ULTRATEMP ETI Hybrid Heater Installation and User s Guide 15 Wiring Diagram Output Side P N 476088 B 4 10 18 ENGLISH...

Page 20: ...s 1 Turn off the power to both the remote pool spa control system and the heater 2 Remove the side panel of the heater cabinet you do not need to remove the star head screw at the top left corner 3 Re...

Page 21: ...Run a UL approved conductor cable from the heater to the Load Center 5 Route the cable up through the low voltage raceway located on the left of the Load Center to the Personality Board see image belo...

Page 22: ...tem power before making any connections 2 Unlatch the EasyTouch load center front door spring latches and open the front door 3 Remove the cover panel screws securing the high voltage cover panel and...

Page 23: ...ace the side panel 8 Restore power to the heater and the EasyTouch control system 9 Press the MENU SELECT button to scroll to the Remote Mode screen Toggle the selection by pressing one of the arrows...

Page 24: ...he cost of operating your heater without sacrificing performance 1 The American Red Cross recommends a maximum water temperature of 83 86 F 28 3 30 C Use an accurate pool thermometer A difference of 3...

Page 25: ...ore details and explanations regarding heater features and programming Pre Startup 1 This appliance does not have a pilot It is equipped with an ignition device which automatically lights the burner D...

Page 26: ...bout 15 seconds the burner should fire When operating for the first time the burner may not fire on the first try because of air in the gas line If it does not fire at first push the ON OFF button wai...

Page 27: ...e water pressure switch refer back to page 10 Water Pressure Switch Adjustment Turn the star wheel on the switch clockwise to raise setting heater below the pool level and counterclockwise to lower th...

Page 28: ...loat Switch CFS The Float Switch CFS is a sensing application that shuts down the heater once the condensate level exceeds the permitted level in the condensate container Ignition Module Operation The...

Page 29: ...an RS 485 connected IntelliFlo pump when the heater is attempting to heat to its set point Suction Temperature Screen Shows the suction line temperature of the refrigerant This screen only appears if...

Page 30: ...T ___ Remote Mode Relay In Relay Remote Mode operation the heater is started and stopped by remote relays which are connected to the remote POOL COMMON and SPA quick connect terminals on the back of t...

Page 31: ...h an RS 485 connected IntelliFlo or IntelliPro pump to ensure water is flowing through the heater when water heating is required Note This feature requires that an RS 485 communication cable be connec...

Page 32: ...message for two 2 minutes FIVE ALARMS Indicates that five 5 faults have occurred in one 1 hour This fault will automatically reset in one 1 hour or can be manually reset by pressing the ON OFF button...

Page 33: ...using the UP and DOWN arrows Defrost Screen Allows the user to Enable Disable Defrost feature Heat Pump Input Screen and Output Screen Diagnostic displays showing the status of the input sensors and...

Page 34: ...e the heater compressor stops The heater evaporator fan will continue to run and will draw air over the evaporator fins for about 15 minutes If the refrigerant sensor detects a temperature above the d...

Page 35: ...NTY CYCLES number of cycles over the lifespan of the unit Press the UP and DOWN arrows to scroll through the Timers and Counters The last screen provides an option to reset the Run Time Log Time and C...

Page 36: ...of your pool water is available from your local pool supply store If pH becomes too high over alkaline it has these effects 1 Reduces the ability of chlorine to destroy bacteria and algae 2 Water beco...

Page 37: ...e the heat pump is in operation The heater base is designed to allow the condensation to exit through the bottom drain port when the unit is running The condensation will increase as the outdoor air h...

Page 38: ...to partially drain then reassemble 8 Use a blower connected to the outlet of the heater to remove all remaining water from the heater 9 Cover air inlet grate with a plastic bag to prevent bugs leaves...

Page 39: ...80W Current Amp 80A 63RH 80W Capacity Btu h 50A 63RH 80W COP 50A 63RH 80W Power Input KW 50A 63RH 80W Current Amp 50A 63RH 80W Min Circuit Ampacity Amp 148 4 150 Electrical Supply Voltage Requirement...

Page 40: ...s closely matched by the ambient and water flow conditions 0 1 2 3 4 5 6 7 8 9 10 11 12 0 10 20 30 40 50 60 70 80 90 100 110 120 Pressure Drop psi Water Flow gpm UltraTemp ETI Pressure Drop Curve Pres...

Page 41: ...If shows open replace thermistor If good replace control board SUCTION TH SHORT Alarm Defrost refrigerant temperature sensor circuit is shorted Bad thermistor or bad control board Use the 10k ohm resi...

Page 42: ...ed Call for professional servicing LOW REFRIG Alarm Refrigerant low pressure switch is open 1 Low refrigerant in system Call for professional servicing 2 Air and water temperatures too cold to operate...

Page 43: ...nector pin 1 and ignition control module terminal F2 On call for heat if blower starts but shuts off within 30 seconds refer to Faulty Air Flow Switch or Switch Wiring troubleshooting below 6 Faulty a...

Page 44: ...ore attempting to Troubleshoot Electrical Box 1 Heater condensate drain hose restriction Verify proper hose routing from heater base Ensure there are no loops kinks or elevated portions between hose e...

Page 45: ...heater Unit ON and Set Temperature is above Actual but Unit is not heating No Alarms Heater is in the five minute safety delay and Compressor has not started Faulty Compressor Faulty Capacitor Compre...

Page 46: ...ue Contact certified electrician BURNER TROUBLESHOOTING Loud high pitched whine Flame is too rich Verify pressure tap between gas valve and blower inlet See page 11 and verify that the gas regulator s...

Page 47: ...ULTRATEMP ETI Hybrid Heater Installation and User s Guide 43 REPLACEMENT PARTS Heater Parts Breakdown REFRIGERATION OUTER SHELL p 44 GAS SYSTEM p 45 ELECTRICAL p 46 PLUMBING p 47 ENGLISH...

Page 48: ...ck 9 475230Z Compressor Blanket 10 475948Z Titanium Heat Exchanger Tie Down Bracket 11 475949Z Titanium Heat Exchanger 12 473735Z Compressor ZP70 Item Part Description 13 473121 Drier Single Direction...

Page 49: ...st Replacement Kit 25 475877 Exhaust Gasket Kit 2 Pieces 26 475989 Gas Engine Spark Electrodes 27 475898 Burner Assembly 28 462023 Flame Sensor Item Part Description 29 475897Z Heat Exchanger 100K BTU...

Page 50: ...Wire Harness Heat Pump Inputs 35 475930Z Wire Harness Outputs 36 475926Z Wire Harness Spark Plugs 37 475931Z Wire Harness Gas Blower 38 473155 Transformer 39 475933Z Ignition Control Module Item Part...

Page 51: ...75941 Switch Automatic Gas Shutoff 140 F 56 475955Z Switch High Limit 127 F 57 471566 Probe Thermistor Water Temperature 58 473381 Union PVC 2in 59 475953Z QRC Clip 60 98218900 Drain Plug 1 4 NPT Item...

Page 52: ...essly noted names and brands of third parties that may be used in this document are not used to indicate an affiliation or endorsement between the owners of these names and brands and Pentair Water Po...

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