Aquacal TropiCool TC500 User manual

AquaCal®
Installation Manual
LTP0099 REV 1
Important
Read this document before operating / installing this product
For additional product manuals and operation / installation procedures, please visit www.AquaCal.com

Table of Contents
Section 1 - Contacting AquaCal AutoPilot, Inc.
Section 2 - Safety
Section 3 - Installation
3.1 Dimensions 2
3.2 Positioning Equipment 2
3.2.a Controlling Irrigation and Rainwater Runoff 2
3.2.b Planning for Condensation 2
3.2.c Mounting Pad Requirements 3
3.2.d Anchoring to Pad 3
3.3 Plumbing 3
3.3.a Clearances 3
3.3.b Water Flow Rates 4
3.3.c Plumbing Requirements 4
3.3.d Plumbing Diagrams 5
3.3.e Water Connections to Chiller 6
3.3.f In-Line Chlorine Feeders 6
3.3.g Maintaining Ability to Winterize 7
3.3.h Adjusting Water Pressure Switch 7
3.4 Electrical 8
3.4.a Electrical Requirements 8
3.4.b Electrical Standards 8
3.4.c Grounding and Bonding 8
3.4.d Surge Suppression 8
3.4.e Sizing the Electrical Service 8
3.4.f Electrical Knockouts 9
3.4.g Verifying Transformer Setting 9
3.4.h Three-Phase Adjustment 9
3.5 Programming 10
3.5.a Factory Defaults 10
3.5.b Deactivate Time Delay 11
3.5.c Reset to Factory Defaults Settings 12
Section 4 - Operation
4.1 Energizing Chiller 12
4.2 Display Lock 12
4.3 Control Panel 13
4.4 Buttons 13
4.5 Indicator Lights 13
4.6 Display 13
4.7 Factory Defaults 14
4.8 Setting Operating Mode 15
4.9 Setting Thermostats 15
4.10 Selecting Celsius or Fahrenheit 15
4.11 User Lock Option (Enable) 15
4.12 User Lock Option (Entering Pass Code) 16
i

4.13 User Lock Option (Disable) 17
Section 5 - Maintenance
5.1 Water Chemistry 17
5.2 Cleaning Equipment After Installation 18
5.3 Winterizing 19
Section 6 - Troubleshooting
6.1 Fault Codes 21
6.2 Issues and Resolutions 23
Section 7 - Appendix
7.1 Identifying Model Specifications 26
7.2 Weights 27
7.3 Access Panels 27
7.4 Initial Cooling Recommendations 27
7.5 Available Accessories 27
ii

Page - 1
SECTION 1 - CONTACTING AQUACAL AUTOPILOT, INC.
For further assistance, please contact AquaCal AutoPilot, Inc. Technical Support. To better assist you,
please have the chiller model and serial number available. See "Identifying Model Specifications" on page
26.
Website www.AquaCal.com
Request Service Online www.AquaCal.com/request-heat-pump-service/
Phone [phone]
Hours 8-5 pm, Eastern M-F
SECTION 2 - SAFETY
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 chiller 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 contact AquaCal®Technical Support. See "Contacting AquaCal
AutoPilot, Inc." on page 1.
SAFETY SIGNALS
Throughout this document, safety signals have been placed where particular attention is
required.
WARNING - signals relate to personal safety.
CAUTION - signals promote avoiding damage to the equipment.
When installing and using your chiller basic safety precautions must always be followed, including the
following:
WARNING - Failure to heed the following may result in injury or death.
lInstallation and repairs must be performed by a qualified technician.
lThe chiller 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.
lThe chiller utilizes high voltage and rotating equipment. Use caution when servicing.
lElectrical installation and service should be performed by a Licensed Electrician only.
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 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 extreme elderly
should be supervised by a responsible adult.
CAUTION - Failure to heed the following may result in equipment damage.
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

Page - 2
SECTION 3 - 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. The
information contained throughout the "Installation" section is intended for use by qualified installation
technicians familiar with the swimming Pool / Spa safety standards.
CAUTION - Failure to heed the following may result in equipment damage.
lFailure to protect equipment against corrosive conditions will adversely affect the life of the equipment and will
void equipment warranty.
3.1 Dimensions
Dimensions (TropiCool™TC500)
Dimensions (TropiCool™TC1000)
3.2 Positioning Equipment
3.2.a Controlling Irrigation and Rainwater Runoff
lCorrosive irrigation water may damage chiller components. Have irrigation water directed away from the chiller.
lThe chiller will withstand normal rainfall. Do not allow a roof slope to direct rainwater onto the chiller. Have a
gutter installed on the roof edge to direct this water away from the chiller. Or install the chiller in another
location.
3.2.b Planning for Condensation
The chiller can produce a large amount of water in the form of condensation. The amount of water depends
on air temperature and humidity.

Page - 3
lInstall the chiller with enough height to allow for water drainage.
lPlan for water drainage disposal as needed.
3.2.c Mounting Pad Requirements
lBuild the chiller pad out of concrete or another code-approved material.
lConfirm the pad can support the weight of the chiller. See "Weights" on page 27.
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 chiller base in all directions.
lDo not install the chiller on soil or grass.
lDo not allow the chiller base to touch the buildings foundation.
lDo not place the chiller directly on a concrete floor inside a building. This can cause noisy equipment vibration.
Install vibration dampeners between the heat pump base and floor.
lEquipment pad must meet all requirements of authorities having code-related jurisdiction.
3.2.d Anchoring to Pad
lFollow all applicable local, state, and national requirements regarding wind load anchoring.
lIf needed, contact AquaCal®Customer Support to obtain the correct anchoring kit information. Please have the
chiller model number and serial number when requesting support. See "Identifying Model Specifications" on
page 26.
3.3 Plumbing
3.3.a Clearances
lProper air circulation is required for the chiller to operate efficiently. Avoid placing objects near or on top of the
chiller. This includes shrubbery and lawn furniture. These objects will also hinder maintenance access.
lAvoid storing chemical containers near the heat pump. The chemicals can cause equipment damage.
Overhead Clearance
(not including SideWinder™)

Page - 4
TropiCool™(Top View)
3.3.b Water Flow Rates
Maintain water flow rates as indicated. Please note, these specifications relate to the chiller only. Code-
specified whole system turnover rates must be satisfied.
CAUTION - Failure to heed the following may result in equipment damage.
lWater flow exceeding maximum flow rate may damage heat exchanger; such damage will not be covered under
the equipment warranty
MODEL HEAT EXCHANGER TYPE FLOW RATES
MINIMUM MAXIMUM
TC500 Titanium Tube-in-Tube 20 GPM 45 GPM
TC1000 Titanium ThermoLink®30 GPM 70 GPM
If water flow through the chiller is reduced, performance will suffer and internal safety devices may
deactivate the chiller with error codes LP or LP5.
lOperate water filtration devices per manufacturer's specifications. Dirty filters can cause reduced water flow to the
chiller. 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. Similar to a dirty filter, large volumes of debris in the pump and skimmer baskets
can reduce water flow.
lCheck for improper valve settings. A partially closed valve after the filter, or a full-open bypass around the
chiller, will cause insufficient water flow through the chiller.
lThe maximum static (or operating pressure) is 50 pounds-per-square-inch (PSI) unless a special "high-pressure"
unit has been ordered. These specifications relate to the chiller only. Code-specified whole system turnover rates
must be satisfied.
3.3.c Plumbing Requirements
CAUTION - Failure to heed the following may result in equipment damage.
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 chiller must receive water flow within the specified minimum ranges under worst-case conditions such as a
fouled water filter. See "Water Flow Rates" on page 4.

Page - 5
lWater flow exceeding maximum flow rates may damage chiller and will not be covered under equipment
warranty. See "Water Flow Rates" on page 4.
lInstall a bypass valve whenever water-flow may exceed maximum rating.
lSee "5 lb Bypass Valve Kit (Kit STK0135)" on page 27.
lFor additional guidance testing water flow rates, please contact AquaCal®Technical Support.
3.3.d 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, AquaCal®Technical Support is
available for installation advice and guidance.
Air Source Chiller Plumbing Diagrams
Chiller with water flows equal or less than maximum listed flow rate
See "Water Flow Rates" on page 4.
Chiller with water flows greater than maximum listed flow rate
See "Water Flow Rates" on page 4.

Page - 6
3.3.e Water Connections to Chiller
lConnections to site plumbing are made via PVC solvent cement to the female slip socket of the plumbing unions.
lThe Chiller uses 2-inch union connections.
lThese unions are available from AquaCal®.See "Available Accessories" on page 27.
CAUTION - Failure to heed the following may result in equipment damage.
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.
TropiCool™TC500
TropiCool™TC1000
3.3.f In-Line Chlorine Feeders
Place in-line chlorinators downstream from the chiller and as low in elevation as possible. If an erosion type
feeder is used, always install a Hartford Loop to protect internal chiller components.

Page - 7
Chiller with Hartford Loop
3.3.g Maintaining Ability to Winterize
CAUTION - Failure to heed the following may result in equipment damage.
lDo not use glue on the threaded portion of the equipment’s unions. A glued-in-place union will prevent the
chiller from being properly winterized.
The unions can be used to decouple the chiller from the plumbing system during hard freeze conditions. Do
not defeat the function of the unions by using glue on the threaded portion of the unions. See "Winterizing"
on page 19.
3.3.h Adjusting Water Pressure Switch
Adjust water pressure switch when chiller attempts to operate without water flow.
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.
CAUTION - Failure to heed the following may result in equipment damage.
lIf after water pressure switch adjustment the chiller continues to operate with the filter pump off, readjust water
pressure switch to ensure chiller will not run without water flow.
Confirm the following before attempting any adjustments:
lThe filter is clean.
lFilter pump is operating.
lValves are set to direct appropriate amount of water through the chiller. See "Water Flow Rates" on page 4.
lFLO code is displayed (or displays intermittently).
Adjusting Water Pressure Switch:
1. Remove chiller access panel. See "Access Panels" on
page 27.
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 chiller.
5. Slowly rotate adjustment wheel on switch until the FLO
code just disappears.
6. Deactivate filter pump. If correctly adjusted, thechiller
will deactivate and display FLO.
7. Re-install chiller access panel.
lIf chiller continues to operate without water flow, contact AquaCal®Technical Support.
lSite-specific factors may require the installation of an external flow switch. See "Available
Accessories" on page 27.

Page - 8
3.4 Electrical
3.4.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 chiller as possible. Always satisfy applicable codes and
standards.
lNever mount power-disconnects directly to the chiller.
lIn sizing power wiring, be especially aware of up-sizing requirements necessary due to wiring distances. Always
satisfy applicable codes and standards.
lMultiple chillers 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 27.
lAquaCal®chillers are designed for copper conductors, only. Do not use aluminum wire.
3.4.b Electrical Standards
Standards Title
NFPA 70 The electrical installation must conform to the current
version of the NEC, and all applicable local and state
codes
NFPA 70 Article 440 Standard for Safety for Electric Spas, Equipment
Assemblies, and Associated Equipment
NFPA 70 Article 680 Standard for Safety for Swimming Pool Pumps, Filters,
and Chlorinators
IEC 60335-1-2001 Household and similar electrical appliances - Safety -
General Requirements
IEC 60335-2-40 2006 Household and similar electrical appliances - Safety –
Particular requirements for electrical heat pumps, air-
conditioners, and dehumidifiers
UL1995 & CSA C22.2
236-05 Heating and cooling equipment
Table 1 - Standards
3.4.c Grounding and Bonding
Follow local code requirements for properly grounding and bonding chiller equipment.
3.4.d Surge Suppression
The use of approved commercial surge protectors is strongly recommended.
3.4.e Sizing the Electrical Service
Refer to equipment data plate for specific information required to size electrical service and over-current
protection of chiller. Sizing is based on data plate information, wire size, wiring devices, and over-current
protection per applicable local codes and standards. See "Identifying Model Specifications" on page 26.

Page - 9
3.4.f Electrical Knockouts
TropiCool™
3.4.g Verifying Transformer Setting
Transformer voltage settings must be confirmed and set correctly depending on the measured voltage found
on the site. Incorrect settings may cause chiller damage. The following procedure will allow the installer to
set the chillers transformer for the appropriate site voltage.
WARNING - Failure to heed the following may result in injury or death.
lThe information contained in this section is intended for use by qualified electrical installation technicians,
familiar with electrical service-industry safety standards and methods.
CAUTION - Failure to heed the following may result in equipment damage.
Example of chiller
transformer
(Varies between models)
1. Turn chiller on by adjusting the thermostat to call for heat. If more than
one chiller is on site, turn them all on. Final adjustments must be made
with all chillers running.
2. Measure the running site voltage.
3. Confirm transformer tap is set for the measured site voltage. If more than
one voltage tap is shown, select the voltage nearest to the running site
voltage.
Please note: If more than one voltage is shown on the equipment’s data plate, the factory
default setting is the higher listed voltage. As an example, a "208 / 230" voltage will be set
to "230" from the factory.
4. If a chiller is using three-phase incoming power, confirm voltage and settings are correctly set at the monitor.
See "Three-Phase Adjustment" on page 9.
3.4.h Three-Phase Adjustment
lIf a three-phase unit fails to operate at start up, the orientation of the line voltage "field" wiring may need to be
adjusted.
lUnits equipped with the ICM Digital Three-Phase Monitor will display a "Back Phase Rev" fault code. There is
no display on the standard three-phase monitor.
lThree-phase models may be equipped with a Standard Three-Phase Monitor (Figure 1) or the ICM Digital Three-
Phase Monitor (Figure 2).

Page - 10
WARNING - Failure to heed the following may result in injury or death.
lThe information contained in this section is intended for use by qualified electrical installation technicians,
familiar with electrical service-industry safety standards and methods.
CAUTION - Failure to heed the following may result in equipment damage.
lSetting a voltage other than what is listed on the chiller’s data plate can damage equipment and is not covered
under warranty.
1. Deactivate power to the unit. Confirm that power is off to all three legs using an electrical test meter
set for the correct voltage.
2. Switch position of the incoming power wires at each leg as follows, re-connect power, and attempt to restart
the unit. If the unit fails to start, disconnect power. Verify off and proceed to next leg.
lSwitch incoming power wires at L1 and L2 on the line side to the contactor.
lSwitch incoming power wires at L1 and L3 on the line side to the contactor.
lSwitch incoming power wires at L2 and L3 on the line side to the contactor.
3. When chiller starts, disconnect power and verify off. Then confirm all line voltage connections are securely
tightened. Reconnect power.
lIf chiller does not start, contact AquaCal®Technical Support.
Standard
Three-Phase
Monitor
Figure 1
ICM Digital
Three-Phase
Monitor
Figure 2
3.5 Programming
CAUTION - Failure to heed the following may result in equipment damage.
lService Level Programming must only be attempted by authorized service personnel.
lUnauthorized adjustments in the Service Menu (beyond the LOC menu) may void the chiller's warranty.
lFor further assistance, please contact AquaCal®Technical Support. See "Contacting AquaCal AutoPilot, Inc."
on page 1.
lThe compressor time delay should only be deactivated for diagnostic convenience, and must be reactivated prior
to placing chiller back in service. Failure to reset time delay could result in permanent damage to the chiller
compressor.
lResetting the microprocessor to access a locked keypad will reset all settings to factory default including any
installer-entered configuration. Re-programming all custom site condition settings will be required when using
this reset. See "Reset to Factory Defaults Settings" on page 12.
PLEASE NOTE -
Before changing multiple program options, it is recommended to disable the user lock
option. The lockout option can be re-enabled after all changes are completed.
3.5.a Factory Defaults
Certain programming options have been preset at the factory. These options can be overwritten for certain
site-specific conditions.

Page - 11
CODE DESCRIPTION DEFAULT
VALUE RANGE
CFO Call-Flex Options 0 Set to off at the
factory.
dBP Pool Dead-Band Differential 1° Set at Factory. Do
not adjust.
dB5 Spa Dead-Band Differential 1° Set at Factory. Do
not adjust.
DEL Compressor Time Delay 1 (4 minutes) 0 = "OFF"
1 = "ON"
DSC Defrost Sensor Factory
Calibrated
Set at Factory. Do
not adjust.
dFd Defrost Delay Factory
Calibrated
Set at Factory. Do
not adjust.
FS2 Flow Switch / Auto T-Stat
Switching Option 0
0 = "No Switch"
1 = "Enable
Switch"
JAO External Controller 0
0 = "No Controller"
2 = "Two Wire
Controller"
3 = "Three Wire
Controller"
LOC Service Entry Point 50 00 - 99
TSC Water Sensor Factory
Calibrated
Set at Factory. Do
not adjust.
Table 2 - Default Program Parameters Chart
3.5.b Deactivate Time Delay
The time delay should only be deactivated by qualified HVAC technicians for diagnostic convenience, and
must be re-activated prior to placing chiller back in service. Failure to reset time delay feature could result in
permanent damage to the compressor.
Press "Up" and
"Down" buttons
simultaneously
until CF1 appears.
Press "Pool / Spa"
button until LOC
is displayed.
Press "Up" or
"Down" to
passcode. Default
is "17".
Press "Pool / Spa"
button once.

Page - 12
Press "POOL /
SPA" button until
DEL is displayed.
Press the "UP" or
"DOWN" button
l"0" - disable
l"1" - activate
3.5.c Reset to Factory Defaults Settings
CAUTION - Failure to heed the following may result in equipment damage.
lUsing this option will reset ALL settings to their factory defaults including external controller
settings and sensor calibrations. DO NOT perform this operation if unsure of site specific settings or
how to reset them on the chiller.
lIf a qualified technician is unavailable, please contact AquaCal®Technical Support. See "Contacting AquaCal
AutoPilot, Inc." on page 1.
1. Simultaneously Press "Pool / Spa" button and "Up"
button until the display shows 888.
2. Release buttons. Reset is complete.
SECTION 4 - OPERATION
4.1 Energizing Chiller
Turn power on at external fuse box or breaker disconnect.
lController performs a lamp test.
lThe display reads 888.
lController then displays as normal. See "Display" on page 13.
4.2 Display Lock
The chiller has a display lock to protect against
inadvertent setting changes. To activate display and
controls, slide finger across the controls as shown from
left to right.
lThe code UnL will briefly appear, then the set temperature
or mode will display.
lThis is different than a user-lock which requires a pass
code. See "User Lock Option (Enable)" on page 15.

Page - 13
4.3 Control Panel
Control Panel
The following information outlines the operation for a standard installation.
4.4 Buttons
Buttons Description
Display Lock Sliding your finger across the buttons from left to right will
temporarily disable the display lock.
Pool / Spa Select either the pool or the spa thermostat.
Up Arrow Used to increase temperature set point and navigate
though menu options.
Down Arrow Used to decrease temperature set point and navigate
though menu options.
Mode Select chiller's operating mode.
4.5 Indicator Lights
Indicators Description
Pool The Chiller is referencing the pool thermostat.
Spa The Chiller is referencing the spa thermostat.
Cooling
Indicates the unit is cooling the water.
Please note - the compressor must be operating before this
light will illuminate.
Water Temp Indicates current water temperature.
Desired Temp Indicates temperature set point is displayed. This is
displayed when "UP" or "DOWN" is selected.
4.6 Display
Display Description
75 The chiller is on and displaying the current water
temperature. In this example 75° F is displayed.
FLO No water flow is detected. The filter pump is off or chiller
is not receiving correct water flow.
OFF
The chiller has been turned off via the mode selector
button or the temperature set point has been lowered
below 45° F.
888
The control program is initializing. This displays only as
power is applied to the chiller. The program version
number will then be displayed.

Page - 14
Display Description
CF1 Select water temperature format (in either Celsius or
Fahrenheit).
ULC Enable chiller lockout feature.
ELC Select passcode to lock the keyboard.
LOC
This is a Service Entry Point (not intended for use by the
owner). The LOC code permits service personnel to enter a
factory passcode to access adjustable calibration and site
dependent setup parameters. Service adjustments are
available to authorized installation and service personnel,
only.
4.7 Factory Defaults
Certain programming options have been preset at the factory. These options can be overwritten for site-
specific conditions.
CAUTION - Failure to heed the following may result in equipment damage.
lService Level Programming must only be attempted by authorized service centers.
lUnauthorized adjustments in the Service Menu (beyond the LOC menu) may void chiller's warranty.
lIf the issue reoccurs, please contact AquaCal®Technical Support. See "Contacting AquaCal AutoPilot, Inc."
on page 1.
CODE DESCRIPTION DEFAULT
VALUE RANGE
OFF Chiller is
deactivated.
OFF
HEA
This is not an
active feature on
this equipment.
COO
Set to cool water
to point set on
thermostat.
ACH
This is not an
active feature on
this equipment.
CF1
Celsius /
Fahrenheit
Selection
10 = Celsius
1 = Fahrenheit
ELC Enter Lock Code 0 0 - 99
ULC User Lock Code 0 0 = "User Lock Disabled"
1 = "User Lock Enabled"
Table 3 - Factory Defaults

Page - 15
4.8 Setting Operating Mode
PLEASE NOTE
Do not attempt to operate chiller in heat modes HEA or ACH. This is not an active feature
on this equipment.
Cool
Mode
Deactivate
Chiller Heating / Cooling modes only available
on select equipment. Confirm chiller
features before setting a mode.
4.9 Setting Thermostats
Select "POOL" or
"SPA"
Press "UP" or
"DOWN" to the
desired
temperature.
lThe cooling indicator
will illuminate when
cooling the water.
4.10 Selecting Celsius or Fahrenheit
Hold "UP" and
"DOWN" until
CF1 displays.
"0" - Celsius
"1" - Fahrenheit
4.11 User Lock Option (Enable)
The user-lock feature allows the chiller control panel to be "locked"; preventing unauthorized temperature
adjustments.
lDo not confuse a user-lock with the display lock. See "Display Lock" on page 12.
lIf LOC is briefly displayed, followed by a "0", the chiller is already locked.

Page - 16
Hold "UP" and
"DOWN" until
CF1 displays.
Press "POOL /
SPA" button until
ELC is displayed.
Press "UP or
"DOWN" button to
change or add a
numerical password
Press "POOL /
SPA" button to
lock in the
password.
Press "POOL /
SPA" button until
ULC is displayed.
Press "Up" button
till "1" is
displayed to
enable.
4.12 User Lock Option (Entering Pass Code)
If LOC is briefly displayed when attempting to change a chiller's settings followed by a "0", the chiller is in
a user-lock mode. A numerical passcode is required to proceed.
Press "UP" or
"DOWN" arrow
to enter user lock
code.
Press "POOL /
SPA" button
again to unlock.
NOTE -
lAfter three seconds of inactivity, the chiller's slide lock will activate.
lIf the user-lock code has been misplaced, the chiller must be reset to default factory settings.
See "Reset to Factory Defaults Settings" on page 12.

Page - 17
4.13 User Lock Option (Disable)
Use "UP" button
to enter existing
password.
Press "Pool / Spa"
button to unlock.
Hold "UP" and
"DOWN" buttons
until CF1 is
displayed.
Press "POOL /
SPA" button until
ULC is displayed
Press "DOWN"
button until "0" is
displayed.
SECTION 5 - MAINTENANCE
5.1 Water Chemistry
Check water chemistry regularly and maintain within recommended levels. Standards for commercial
applications vary in different areas. Follow all local applicable codes.
CAUTION - Failure to heed the following may result in equipment damage.
lDo not allow water to flow through chiller when refinishing or acid washing a pool. Either use an installed
bypass to route water away from chiller or deactivate filter pump.
lTo avoid damage to equipment, monitor and maintain chemistry within recommended levels.
CHEMISTRY LEVEL CHART
(RESIDENTIAL)
CHEMICAL POOLS SPAS
Chlorine 1.0 – 3.0 ppm 3.0 – 5.0 ppm
Bromine 2.0 – 6.0 ppm 2.0 – 6.0 ppm
Cyanuric
Acid 30 - 50 ppm 30 - 50 ppm
pH 7.4 – 7.6 ppm 7.4 – 7.6 ppm