Ecotherm AquaCal AutoPilot User manual

Installation Manual
LTP0108 REV 1
Important
Read this document before operating / installing this product

Table of Contents
Contacts 1
Safety Instructions 1
1 - Installation 3
1.1 Dimensions 3
1.2 Positioning Equipment 6
1.3 Clearances 7
1.4 Plumbing 8
1.4.a Plumbing Requirements 8
1.4.b Plumbing Diagrams 8
1.4.c Water Connections to Heat Pump 12
1.4.d In-Line Chlorine Feeders 13
1.4.e Water Flow Rates 13
1.4.f Adjusting Water Flow Using ΔT (Delta-T) 14
1.4.g Adjusting Water Pressure Switch 15
1.5 Electrical 16
1.5.a Electrical Requirements 16
1.5.b Incoming Power Access Holes 19
1.5.c Access Panels 20
1.5.d Verifying Transformer Setting 20
1.5.e Three-Phase Adjustment 21
1.5.f Schematics 21
1.5.g Connecting an External Controller 22
1.5.h Programming for an External Controller 23
1.6 Service Level Programming 25
1.6.a Service Level Factory Defaults 26
1.6.b Enter Service Level Programming 27
1.7 Cleaning Equipment After Installation 28
2 - Operation 30
2.1 Display Door (Only available on select equipment) 30
2.2 Energizing Heat Pump 30
2.3 Wake Up Heat Pump 30
2.4 Display Panel 30
2.4.a Buttons 31
2.4.b Display 31
2.4.c Indicator Lights 32
2.5 User Level Programming 32
2.5.a User Level Factory Defaults 32
2.5.b Selecting Celsius or Fahrenheit 33
2.5.c Setting Operating Mode 34
2.5.d Setting Thermostats 34
2.5.e User Lock Option (Enable) 35
2.5.f User Lock Option (Disable) 36
2.5.g Using Pass Code to Access Heat Pump 36
2.5.h Operating Heat Pump (With an External Controller) 37
3 - Maintenance 38
3.1 Water Chemistry 38
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3.2 Planned Maintenance 38
3.3 Winterizing 39
4 - Appendix 42
4.1 Identifying Model Specifications 42
4.2 Weights 43
4.3 Heating Recommendations 43
4.4 Cooling Recommendations 43
4.5 Available Accessories 44
5 - Troubleshooting 45
5.1 Fault Codes 45
5.2 Issues and Resolutions 48
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Contacts
For further assistance, please contact the installing dealer of this product.
To better assist you, please have the heat pump model and serial number available. See "Identifying Model
Specifications" on page 42.
Product Information:
Website http://millenniumbuyinggroup.com/our-members/
Service Information:
Website www.AquaCal.com/request-heat-pump-service/
Phone [phone]
Hours 8-5 pm, Eastern M-F
SAFETY INSTRUCTIONS
lFor personal safety, and to avoid damage to equipment, follow all safety instructions displayed on the equipment
and within this manual. Repair and service of heat pump must be performed by an authorized service center.
lWarranties may be voided if the equipment has been improperly installed, maintained or serviced.
lIf service is deemed necessary, please see "Contacts" on page 1.
SAFETY SIGNALS
Throughout this document, safety signals have been placed where particular attention is
required.
DANGER - Failure to heed the following will result in injury or death.
WARNING Failure to heed the following may result in injury or death.
NOTICE Failure to heed the following may result in damage to equipment.
When installing and using your heat pump basic safety precautions must always be followed, including the
following:
DANGER - Failure to heed the following will result in injury or death.
lThe heat pump utilizes high voltage and rotating equipment. Use caution when
servicing.

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WARNING Failure to heed the following may result in injury or death.
lInstallation and repairs must be performed by a qualified technician.
lThe heat pump contains refrigerant under pressure. Repairs to the refrigerant circuit
must not be attempted by untrained and / or unqualified individuals. Service must
be performed only by qualified HVAC technicians. Recover refrigerant before
opening the system.
lImproper water chemistry can present a serious health hazard. To avoid possible
hazards, maintain pool / spa water per standards detailed in this document.
lProlonged immersion in water warmer than normal body temperature may cause a
condition known as Hyperthermia. The symptoms of Hyperthermia include
unawareness of impending hazard, failure to perceive heat, failure to recognize the
need to exit the spa, and unconsciousness. The use of alcohol, drugs, or medication
can greatly increase the risk of fatal Hyperthermia. In addition, persons having an
adverse medical history, or pregnant women, should consult a physician before
using a hot tub or spa. Children and the elderly should be supervised by a
responsible adult.
lProlonged immersion in water colder than normal body temperature may cause a
condition known as Hypothermia. The symptoms of Hypothermia include shivering
(although as hypothermia worsens, shivering stops), clumsiness or lack of
coordination, slurred speech or mumbling, confusion and poor decision-making,
drowsiness or low energy, lack of concern about personal welfare, progressive loss
of consciousness, weak pulse and slow or shallow breathing. In addition, persons
having an adverse medical history, or pregnant women, should consult a physician
before immersing in a cold body of water. Children and the elderly should be
supervised by a responsible adult.
NOTICE Failure to heed the following may result in damage to equipment.
lMaintain proper water chemistry in order to avoid damage to pump, filter, pool
shell, etc.
lWater flow exceeding maximum flow rate requires a bypass. Damage due to
excessive water flow will void warranty.
SAVE THESE INSTRUCTIONS

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1 - Installation
WARNING Failure to heed the following may result in injury or death.
lInstallation of this equipment by anyone other than a qualified installer can result in
a safety hazard.
lThe information contained throughout the "Installation" section is intended for use
by qualified installation technicians familiar with the swimming Pool / Spa safety
standards.
NOTICE Failure to heed the following may result in damage to equipment.
lFailure to protect equipment against corrosive conditions will adversely affect the
life of the equipment and will void equipment warranty.
1.1 Dimensions
(Eco Therm ET055)

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(Eco Therm ET075)
(Eco Therm ET095 and ET110)

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(Eco Therm ET135)
(Eco Therm ET120R and ET165R)

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1.2 Positioning Equipment
NOTICE Failure to heed the following may result in damage to equipment.
lDo not install equipment inside of a building.
Outdoor Use Only
Do not install equipment inside of a room or building.
lHeat Pumps require unobstructed air flow for proper operation. Heat Pumps should never be installed indoors or
in a location where air flow is restricted. See "Clearances" on page 7.
Controlling Irrigation and Rainwater Runoff
lIrrigation water may damage heat pump components. Direct irrigation water away from the heat pump.
lThe heat pump will withstand normal rainfall. Do not allow a roof slope to direct rainwater onto the heat pump.
Have a gutter installed on the roof edge to direct this water away from the heat pump. Or install the heat pump in
another location.
Planning for Condensation
The heat pump can produce a large amount of condensation. The amount of water depends on air temperature
and humidity.
lInstall the heat pump with enough height to allow for water drainage.
lPlan for water drainage as needed. See "Condensation Drain Kit (# STK0202)" on page 44.
Mounting Pad Requirements
lBuild the heat pump pad out of concrete or other code-approved material.
lConfirm the pad can support the weight of the heat pump. See "Weights" on page 43.
lElevate the pad enough to allow for drainage.
lMake sure the pad is flat and level.
lHave the pad extend at least 6 inches from the heat pump base in all directions.
lDo not install the heat pump on soil or grass.
lDo not allow the heat pump base to touch the building's foundation.
lDo not place the heat pump directly on a concrete floor. This can case noise to be transmitted to an occupied
space. If necessary install vibration dampers between the heat pump base and floor.
lEquipment pad must meet all requirements of authorities having code-related jurisdiction.
Anchoring to Pad
lFollow all applicable local, state, and national requirements regarding wind load anchoring.
lThe shipping brackets used to secure the heat pump to the pallet are approved mounting (hurricane) brackets.
They should be used to anchor the heat pump to the pad.
lIf needed, contact Eco Therm to obtain anchoring kit information. Please have the heat pump model number and
serial number when requesting support. See "Identifying Model Specifications" on page 42.

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1.3 Clearances
lProper air circulation is required for the heat pump to operate efficiently. The following diagrams show the
minimum clearances required for the proper operation of the heat pump.
lAvoid storing chemical containers near the heat pump. The chemicals can cause equipment damage.
lAvoid placing objects near or on top of the heat pump. This includes shrubbery and lawn furniture. These objects
will reduce performance and efficiency and hinder maintenance access.
(Overhead Clearance)
Eco Therm
(Top View)
Eco Therm

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1.4 Plumbing
1.4.a Plumbing Requirements
NOTICE Failure to heed the following may result in damage to equipment.
lDo not use glue on the threaded portion of the equipment’s unions. A glued-in-
place union will prevent the equipment from being properly winterized.
lThe heat pump must receive water flow within the specified minimum ranges under
worst-case conditions such as a fouled water filter.
lFailure to provide clean filtered water to the heat pump can void product warranty.
lWater flow exceeding maximum flow rates will negatively affect the total pool
filtration performance and may damage the heat pump. This will not be covered
under equipment warranty. See "Water Flow Rates" on page 13.
lInstall a bypass valve whenever water-flow may exceed maximum rating.
lSee "5 lb Bypass Valve Kit (# STK0135)" on page 44.
lFor additional guidance testing water flow rates, please contact Eco Therm.
1.4.b Plumbing Diagrams
Plumbing diagrams are provided in this section as a planning guide to the sequence of equipment, valves, and
fittings.
lThe basic plumbing configurations for typical installations are shown.
lIf the installation does not closely follow any of the supplied plumbing diagrams, Eco Therm Technical Support
is available for installation advice and guidance.
lConfirm water provided to heat pump is clean and filtered.
Heat Pump with water flows equal or less than maximum listed flow rate
See "Water Flow Rates" on page 13.

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Heat Pump with water flows greater than maximum listed flow rate
See "Water Flow Rates" on page 13.
Heat Pump with Spillover Spa (One filter Pump)

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Heat Pump with Spillover Spa (Two filter Pumps)
Heat Pump with Solar Panels in Plumbing Circuit
Heat Pump with Gas Heater backup

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Multiple Air Source Heat Pumps
Multiple Air Source Heat Pumps (Reverse Return Detail)

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1.4.c Water Connections to Heat Pump
lHeat Pump union sizes are specified on diagrams.
lConnections to site plumbing are made via PVC solvent cement to the female slip socket of the plumbing unions.
lPlumbing unions are available from Eco Therm. See "Available Accessories" on page 44.
NOTICE Failure to heed the following may result in damage to equipment.
lDo not use glue on the threaded portion of the equipment’s unions. A glued-in-
place union will prevent the equipment from being properly winterized.
(Eco Therm ET055 and ET075)
(Eco Therm ET095, ET110, and ET135
Eco Therm ET120R and ET165R

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1.4.d In-Line Chlorine Feeders
Place in-line chlorinators downstream from the heat pump and as low in elevation as possible. If an erosion
type feeder is used, always install a Hartford Loop to protect internal heat pump components.
Heat Pump with Hartford Loop
1.4.e Water Flow Rates
Maintain water flow rates as indicated. Please note, these specifications relate to the heat pump only. Code-
specified whole system turnover rates must be satisfied.
NOTICE Failure to heed the following may result in damage to equipment.
lWater flow exceeding maximum flow rates will negatively affect the total pool
filtration performance and may damage the heat pump. This will not be covered
under equipment warranty.
MODEL HEAT EXCHANGER TYPE FLOW RATES
MINIMUM MAXIMUM
ET055 Titanium Tube-in-Tube 20 GPM 45 GPM
ET075 Titanium Tube-in-Tube 20 GPM 45 GPM
ET095 Titanium Tube-in-Tube 30 GPM 70 GPM
ET110 Titanium Tube-in-Tube 30 GPM 70 GPM
ET135 Titanium Tube-in-Tube 30 GPM 70 GPM
ET120R Titanium ThermoLink®30 GPM 70 GPM
ET165R Titanium ThermoLink®30 GPM 70 GPM
PLEASE NOTE -
If minimum flow rates are not met, heat pump performance is reduced and performance will
suffer. Internal safety devices may deactivate the heat pump with the following errors:
lHP and HP5
lor (if equipped) error codes of LP and LP5
lOperate water filtration devices per manufacturer's specifications. Dirty filters can cause a reduction of water flow
to the heat pump. An increase of 7-10 psi higher than the clean filter pressure typically reduces flow rates. This
requires the filter to be cleaned or back-washed.
lKeep baskets free of debris. A large quantity of debris in the pump and skimmer baskets can reduce water flow.

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lCheck for improper valve settings. A partially closed valve after the filter, or a full-open bypass around the heat
pump, will cause insufficient water flow through the heat pump.
lThe maximum static pressure (or operating pressure) is 50 pounds-per-square-inch (PSI). These specifications
relate to the heat pump only.
lCode-specified whole system turnover rates must be satisfied.
1.4.f Adjusting Water Flow Using ΔT (Delta-T)
The Delta-T is the temperature difference between the water temperatures entering and leaving the heat pump.
The equipment can be fine-tuned for maximum performance by balancing water flow rates to maintain an
ideal ∆T.
lInstalled temperature ports are required to perform the following procedures.
lThese ports must be located on the pool in and pool out water lines approximately six inches away from the heat
pump.
lThe adjustment procedure must be completed with the unit in heating mode .
PLEASE NOTE -
lThe installation of temperature ports are required for all commercial applications.
lThe installation of temperature ports are strongly recommended for residential installations.
Temperature Port
(Shown with Probe)
1. Adjust thermostat to its lowest setting with unit in heating
mode.
2. Deactivate the water filtration pump.
3. Confirm that the filters leading to the heat pump are clean.
4. Adjust the valves controlling water headed towards the heat
pump to the half open position.
5. Adjust the valves controlling water leading away from the
heat pump to a fully open position.
6. Activate the pool water filtration pump.
7. Slowly raise the thermostat temperature until the heat pump
activates.
lAfter a four-minute delay, the heat pump's compressor
will start.
8. With the heat pump running, confirm water filtration pump is operating properly with adequate flow and no short
cycling.
9. Wait for water temperatures to stabilize (approximately 5 minutes).
10. Adjust valves in the following order:
a. Adjust the valve that controls water exiting the heat pump. Match the temperature measured with a
temperature probe to the chart. (See "Temperature Chart" in this section)
b. Wait for water temperatures to stabilize. Then check temperature again. Re-adjust the valve controlling the
water exiting the heat pump as needed.
11. Mark valves at these positions for future reference.

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MODEL TEMPERATURE
ET055 2° to 5° F
ET075 3° to 6° F
ET095 3° to 7° F
ET110 3° to 7° F
ET135 3° to 7° F
ET120R 3° to 7° F
ET165R 3° to 8° F
Table 1 - Temperature Chart
PLEASE NOTE -
lTemperature differences are based on pool water temperatures of 69° to 75° F.
lFor water temperatures outside this range, contact Eco Therm. See "Contacts" on page 1.
1.4.g Adjusting Water Pressure Switch
Adjust water pressure switch when heat pump attempts to operate without water flow.
Before attempting any adjustments confirm the
following :
lThe filter is clean.
lFilter pump is operating.
lThe valves are set to direct the appropriate amount
of water through the heat pump. See "Water Flow
Rates" on page 13.
lFLO is displayed (or displays intermittently).
WARNING Failure to heed the following may result in injury or death.
lWater Pressure Switch adjustment procedure to be performed by experienced
service personnel only; procedure must not be attempted by individuals lacking
adequate electrical and mechanical experience.
NOTICE Failure to heed the following may result in damage to equipment.
lIf after water pressure switch adjustment the heat pump continues to operate with
the filter pump off, readjust water pressure switch to ensure heat pump will not run
without water flow.

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1. Remove heat pump access panel. See "Access Panels" on
page 20.
2. Locate the water pressure switch. It will be outside and along
the bottom edge of the electrical enclosure. Exact location
varies by model.
3. Activate filter pump.
4. Apply power to heat pump.
5. Slowly rotate the adjustment wheel on the switch. Keep
turning the wheel until the heat pump indicates it is receiving
water. The display will no longer display the FLO code.
6. Deactivate filter pump. If correctly adjusted, theheat pump will deactivate and the display will show the FLO
code.
7. Re-install heat pump access panel.
lIf heat pump continues to operate without water flow, contact Eco Therm.
lSite-specific factors may require the installation of an external flow switch. See "Available Accessories" on
page 44.
1.5 Electrical
1.5.a Electrical Requirements
WARNING Failure to heed the following may result in injury or death.
lThe information contained in this section is intended for use by qualified
electricians familiar with electrical service-industry safety standards and methods.
lLocate the equipment disconnect as near to the heat pump as possible. Always
satisfy applicable codes and standards.
lNever mount power-disconnects directly to the heat pump.
lIn sizing power wiring, be especially aware of up-sizing requirements necessary
due to wiring distances. Always satisfy applicable codes and standards.
lEco Therm heat pumps are designed to use copper conductors, only. Do not use
aluminum wire.
lMultiple heat pumps installed at the same site may benefit from automatic
sequencing controllers (ASC) to avoid excessive power drops at start-up. See
"Available Accessories" on page 44.