Leisure Temp LT55 User manual

Operation Manual
LTP0147 REV 1.02- (project rel 7.02)
Important
Read this document before operating / installing this product

Table of Contents
Contacts 1
Safety Instructions 1
1 - Operation 3
1.1 Wake Up Heat Pump 3
1.2 Display Panel 3
1.3 Activate Heat Mode, or Deactivate Equipment 5
1.4 Set Temperature 6
1.5 Set Up Programming 6
1.5.a Setting Date and Time 6
1.5.b Using Entry Code to Access Heat Pump 8
1.5.c Setting Entry Code Option 8
1.5.d Disabling Entry Code Option 10
1.6 External Equipment 11
1.6.a Operating Heat Pump with a Call Flex 11
1.6.b Operating Heat Pump (With an External Controller) 14
1.6.c Operating Heat Pump (With an External Flow Switch) 14
1.6.d Operating Heat Pump (With a Gas Back-Up) 14
d.1 Using Gas Boost 15
1.6.e Operating Multiple Connected Heat Pumps 17
2 - Maintenance 18
2.1 Water Chemistry 18
2.2 Cleaning Equipment 19
2.3 Clearances 20
2.4 Irrigation and Storm Run-Off 21
2.5 Water Flow Rates 21
2.6 Adjusting Water Flow Using ΔT (Delta-T) 22
2.7 Planned Maintenance 23
2.8 Winterizing 24
3 - Troubleshooting 26
3.1 Fault Codes 27
3.2 Issues and Resolutions 30
4 - Appendix 37
4.1 Factory Defaults 37
4.2 Identifying Model Specifications 38
4.3 Weights 39
4.4 Heating Recommendations 39
4.5 Available Accessories 40
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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.
lSee "Identifying Model Specifications" on page38.
Product Information:
Website https://therecreationalwarehouse.com/
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 contact Leisure Temp. See "Contacts" above.
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.
lFollow all National Electric Codes (NEC) and/or State and Local guidelines.

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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 as 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. People 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.
NOTICE
Failure to heed the following may result in damage to equipment.
lMaintain proper water chemistry to avoid damage to the pump, filter, pool shell, etc.
lWater flow exceeding the maximum flow rate requires a bypass. Damage due to excessive water flow will void the
warranty.
SAVE THESE INSTRUCTIONS

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1 - Operation
IN THIS SECTION:
1.1 Wake Up Heat Pump 3
1.2 Display Panel 3
1.3 Activate Heat Mode, or Deactivate Equipment 5
1.4 Set Temperature 6
1.5 Set Up Programming 6
1.5.a Setting Date and Time 6
1.5.b Using Entry Code to Access Heat Pump 8
1.5.c Setting Entry Code Option 8
1.5.d Disabling Entry Code Option 10
1.6 External Equipment 11
1.6.a Operating Heat Pump with a Call Flex 11
1.6.b Operating Heat Pump (With an External Controller) 14
1.6.c Operating Heat Pump (With an External Flow Switch) 14
1.6.d Operating Heat Pump (With a Gas Back-Up) 14
1.6.e Operating Multiple Connected Heat Pumps 17
1.1 Wake Up Heat Pump
The display's backlight will be off when the heat pump is in
sleep mode. To wake up the heat pump, slowly slide a finger
across the buttons.
lThe display will illuminate.
lThe message "KEYPAD UNLOCKED" will briefly appear.
lThen the water temperature and mode will display.
1.2 Display Panel
Display Panel
The following information outlines the operation for a standard installation.
lControl Buttons will operate differently for custom installations; such as
when a heat pump is connected to an external controller or multiple heat pump
configuration.
lSee "Operating Heat Pump (With an External Controller)" on page14.
lSee "Operating Multiple Connected Heat Pumps" on page17.
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Buttons
Buttons Description
Slowly slide a finger across the buttons from left to right to disable the sleep mode.
Sleep mode will automatically reactivate after three minutes have passed.
Select either the pool or the spa thermostat.
Enter the user menu for heat pump options.
Used to increase temperature set point and navigate through menu options.
Used to decrease temperature set point and navigate through menu options.
Used to select the heat pump's operating mode. Also used to edit or confirm options in a menu.
Indicator Lights
Indicators Description
Heating Red LED indicates the unit is heating the water.
When calling for heating, up to a three-minute delay may occur before the
compressor starts. The compressor must be operating before the indicator
will illuminate.
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Display
Display Description
Entry code required
The heat pump has a user lock enabled.
See "Using Entry Code to Access Heat
Pump" on page8.
No water flow
No water flow is detected. The filter
pump is off or the heat pump is not
receiving the correct water flow.
Primary Heat Pump Primary heat pump controlling other
connected heat pumps
Remote Controlled - by master
(primary) Heat Pump
Heat Pump is set to be controlled by
another connected heat pump.
Remote Controlled - by
external controller
Heat Pump is set to be controlled by an
external controller.
Set to 75° F - Heating
Heating water to point set on the
thermostat. In this example, the pool
thermostat has been set to 75° F.
Set to Off The heat pump has been deactivated
using the "Mode / Enter" button.
1.3 Activate Heat Mode, or Deactivate Equipment
Press "Mode / Enter" button until the desired mode is displayed.
lHEATING MODE- After the fan and compressor start, the red "Heating" light will activate.
lOFF - The heat pump will indicate it is deactivated. The current water temperature will be
displayed.
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1.4 Set Temperature
Select the pool or spa thermostat. Then press the up or down arrow to set the desired temperature (setpoint) for
the water.
lThe heating indicator will illuminate when heating the water.
1.5 Set Up Programming
1.5.a Setting Date and Time
Set the heat pump's time and date using the following steps.
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1.5.b Using Entry Code to Access Heat Pump
If a user entry code has been enabled in the user menu, an entry code will be required to access heat pump
options.
PLEASE NOTE -
lIf the entry code has been misplaced, the heat pump will need to be reset to factory defaults.
lAfter three minutes of inactivity, the heat pump's sleep mode will activate. See "Wake Up
Heat Pump" on page3.
1.5.c Setting Entry Code Option
The entry code feature can prevent unauthorized temperature adjustments. This feature initiates after the heat
pump goes into the sleep mode for the first time.
NOTICE
Failure to heed the following may result in damage to equipment.
lBefore enabling the entry code feature, be sure to record the code. If lost, the heat pump will require a
program reset to regain access. This reset may require additional configuration by the installer.
PLEASE NOTE -
A heat pump requesting an entry code is different than the control panel's sleep mode. (See
Wake Up Heat Pump on page3 for more information.)
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1 - Operation

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1.5.d Disabling Entry Code Option
PLEASE NOTE -
lIf the heat pump displays a KEYPAD LOCKED message, the heat pump is in sleep mode.
See "Wake Up Heat Pump" on page3.
lIf an entry code has already been activated, the code must be entered before proceeding to
disable.
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1.6 External Equipment
1.6.a Operating Heat Pump with a Call Flex
When a Call Flex has been installed and configured for a heat pump, the circulation pump will respond to
commands from the heat pump. Confirm with the installer if a Call Flex accessory has been installed on the
system. See "Call Flex Accessory (# 0030-LEDS)" on page40.
lIf installed, the operator has the option of changing how this accessory works using either "CALL" mode,
"FLEX" mode, or "OFF" (Default).
Using Call Mode:
When the accessory is in CALL (or override) mode, the circulation pump will be set to periodically
activate. This allows the heat pump to sample the water temperature.
lThe default is 2 hours between each activation.
lThe water temperature will be sampled for 30 seconds.
lIf the water temperature has fallen below the set temperature, the circulation pump will allow the heat pump
to operate until the set temperature is reached.
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Using Flex Mode:
When the accessory is in FLEX (or extend) mode, the heat pump will start to heat if the set temperature is
lower than the water temperature and the heat pump has water flow. The circulation pump does not
automatically activate in this mode.
lIf the desired water temperature has not been met by the end of the circulation pump's schedule, the normal
"time-off" setting will be overridden.
lThe circulation pump will continue to operate until the set temperature has been met.
lThe circulation pump will then deactivate until the next normally scheduled start time.
Configure for Call mode:
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Configure for Flex mode:
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1.6.b Operating Heat Pump (With an External Controller)
If the display indicates the unit is under remote
control, an external control device has been
configured to control the heat pump. See the
external control device manual. Or contact
installer or manufacturer of that device.
PLEASE NOTE:
When using a SMART external control device, the time-out and service modes will
deactivate the Heat Pump.
1.6.c Operating Heat Pump (With an External Flow Switch)
When an external flow switch has been installed and enabled, the heat pump will automatically switch from
pool to spa temperature settings when there is flow through the external flow switch. The "Pool/Spa" button
will be disabled when this device is configured in the system.
Confirm with the installer if an external flow switch has been installed on the system.
1.6.d Operating Heat Pump (With a Gas Back-Up)
If a gas backup heater is installed, it will be configured in one of two modes by the installer (Scheduled mode
or 24-hour mode). This affects how the heater operates.
PLEASE NOTE -
Gas backup modes are only available when the ambient air temperature is below 60° F.
See "Using Gas Boost" on the next page for an exception.
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Scheduled Mode
When heating the Pool:
lThe heat pump will operate for one hour. Then a calculation is made on how fast the water temperature is
rising (a rate of rise).
lIf an insufficient amount of time is provided for the heat pump to heat the water, the gas backup heater will
be activated.
lWhen the set temperature has been reached, the gas heater will deactivate.
lThe heat pump will continue to maintain the water temperature.
When heating the Spa:
lIf the water temperature is lower than 2° F (-16.7° C) below the set temperature, and the ambient air
temperature is below 60° F (15.6° C), the gas heater will activate.
lWhen the set temperature has been reached, the gas heater will deactivate.
lThe heat pump will continue to maintain the water temperature.
24 Hour Mode
lThis mode is usually used when the circulation pump runs continuously.
lThe gas heater will activate when the water temperature falls 2° F (-16.7° C) below the set temperature and
the ambient air temperature is below 60° F (15.6° C).
lWhen the set temperature is reached, the gas heater deactivates. The heat pump then maintains the water to
the set temperature. If the water temperature again falls 2° F (-16.7° C) below the set temperature, the gas
backup will reactivate.
d.1 Using Gas Boost
When a gas backup heater is installed, the user has the option of using a gas boost to heat the water quicker.
lThis option is available regardless of the gas heater's configuration mode set by the installer (Scheduled Mode or
24 Hour Mode).
lWhen the set temperature is reached, the gas heater will deactivate. The heat pump then continues to maintain the
temperature set point. The gas heater will revert to its normal mode (either 24-hour or scheduled).
PLEASE NOTE -
The "Gas boost" option is available regardless of outside air temperature.
This option, however, will only appear in the user menus when the heat pump is actively
heating the water.
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1.6.e Operating Multiple Connected Heat Pumps
Each heat pump will indicate whether it is a master or slaved unit on the display. Changes in mode and
operation are made on the master (primary) heat pump only.
lThe master heat pump will automatically start and stop the slaved heat pumps in a timed and controlled sequence.
Master Heat Pump Slaved Heat Pump 01
Slaved Heat Pump 02 Slaved Heat Pump 03
1 - Operation