Aqua Logic DSHP Series Manual

Copyright© 2016 Aqua Logic, Inc. Effective date of 1/2016
____________________________________________________________________________________
AQUALOGIC’S DSHP Series heat pumps
INSTALLATION & OPERATING INSTRUCTIONS
Thank you for purchasing an Aqua Logic DSHP series heat pump. It has been designed and built to
provide years of reliable, trouble-free service. It provides a precise water temperature control up to
+/- 1.0°F (0.7°C) accuracy and features a continuous LCD display of the current fluid temperature.
BEFORE INSTALLING THE HEAT PUMP
READ BOTH WARRANTY AND INSTALLATION INSTRUCTIONS.
Aqua Logic, Inc.
9558 Camino Ruiz.
San Diego, CA 92126
PH: 858.292.4773 Fax: [phone]
Email: [e-mail]
Website: www.aqualogicinc.com

Copyright© 2016 Aqua Logic, Inc. Effective date of 1/2016
Important: Unpacking your heat pump.
This heat pump was properly packed and accepted by the transportation company
for shipment. It is the responsibility of the transportation company to deliver it to
you in perfect condition.
APPARENT DAMAGE OR LOSS
If, upon delivery, the shipping container or equipment indicates DAMAGE IN
TRANSIT, such damaged goods should not be accepted until the transportation
company’s agent has noted on the freight bill, which he will give you, the nature
and extent of the damage. If any part of this shipment is LOST IN TRANSIT, have the
shortage noted on the freight bill by the agent.
CONCEALED DAMAGE
Remove cover to inspect the heat pump for damage.
If, when this equipment is unpacked, shipping damage is discovered which was not
apparent upon delivery, notify the transportationcompany IMMEDIATELY to
inspect the damaged equipment. The inspector is REQUIRED to provide you with a
DAMAGE INSPECTION report.
THIS INSPECTION MUST BE REQUESTED WITHIN FIFTEEN (15) DAYS OF DELIVERY. DO NOT MOVE DAMAGED SHIPMENTS
FROM POINT OF DELIVERY. RETAIN ALL CONTAINERS AND PACKING FOR INSPECTION.
Protect yourself. File your claim immediately with the transportation company! Remember, Aqua logic Inc. is not
responsible for any damage after the carrier accepts a shipment. Claim for FULL VALUE REIMBURSEMENT should be made
by you against the transportation company. Replacement of the damaged equipment should be requested by the
purchaser as a new order.
WARNING!!!
THIS DEVICE USES HIGH VOLTAGE ELECTRICAL POWER FOR OPERATION.
SAFETY PRECAUTIONS MUST BE OBSERVED.
CAREFULLY READ AND OBSERVE THE FOLLOWING TO AVOID ELECTRICAL SHOCK
OR SEVERE DAMAGE TO THE EQUIPMENT.
•We recommend, as with all electrical equipment used in or around water, that you connect your electrical equipment
to a ground-fault interrupt (GFIC) protection circuit.
•ALWAYS turn the power off for the equipment at the source (circuit breaker) if there is any electrical problem or if the
electrical equipment or controller has been submerged in water.
•ALWAYS make sure that the electrical circuit you connect your electrical equipment to is rated at least 20% higher than
the maximum current rating on the equipment.
•ALWAYS make sure that you operate the equipment at the correct voltage.
•Do NOT attempt to turn off the power at the heat pump or controller if a problem occurs. Disconnect unit at the main
power panel.
Do NOT attempt to repair equipment. Call Aqua Logic for instructions.

Copyright© 2016 Aqua Logic, Inc. Effective date of 1/2016
Very Important!
1. The standard target fluid temperature is limited to a range of 40° F to 80° F on all Delta Star Heat pumps. Without
special factory installed equipment, possible damage to the unit can occur when attempting to access fluid
temperatures outside this range. Aqua Logic, Inc.’s warranty does not apply to application temperatures under
40°F or above 80° F without special factory modifications.
Compressor crankcase heater must installed when ambient air temperature is 60°F and below.
2. Water going to the heat pump should be protected by filters to keep debris from collecting in the evaporator and
condenser shells. Clogged shells lead to heat exchange problems and will void the warranty.
3. Improperly installed or out of adjustment rapid sand filters can put sand into the stream of water flowing into the
heat pump. This condition is similar to “sand blasting” and may abrade holes in plumbing lines or the evaporator
and condenser. Conditions like these would void the Aqua Logic, Inc. warranty.
40° F to 80° F Pool Temperature Applications
Wetted parts contain titanium, PVC plastic, rubber, and polymer. These materials are non-reactive with fresh and
salt water. You must consult with Aqua Logic, Inc. if any other fluids are to be pumped through the heat pump.
If humid or wet conditions exist where heat pump is to be located, care must be taken to prevent water from
getting on electrical components.
4. On some heat pump models, allow only qualified licensed personnel to supply electric power to heat pump.
Installation must be done in accordance with local and national electrical code. Delta Star heat pumps need a
fusible disconnect installed within five feet. The heat pump needs a dedicated power supply. Do not share the
power feed with any other peripheral devices such as pumps, ultraviolet light sterilizers, or filters. Install an
interlock device such as a water flow switch which prevents the heat pump from energizing without the pump
being on.
5. Double check electrical specifications on unit’s electrical access cover plate making sure of voltage, amperage,
phase, and cps before energizing. (Do not remove any covers with electrical power on.)
6. Fluid must flow through the heat pump at all times. See heat pump specification sheet or product label for
minimum and maximum flow rates. Flow rates less than specification may result in evaporator freeze-up and
cracking of the evaporator shells. Also over heating of the heat pump can occur due to lack of water flow to the
condenser. Aqua Logic Inc. does not warranty evaporator shells operating under low flow conditions and
compressor burn outs due to overheating.
7. Incoming water pressure to the evaporator must not exceed 50 psi and condenser must not exceed 100 psi. Over
pressuring the evaporator and condenser may cause damage to the shells, which is not covered under warranty.

Copyright© 2016 Aqua Logic, Inc. Effective date of 1/2016
Installation Instructions:
1. Place the heat pump on a level concrete or metal pad with at least two (2) feet of space around
the unit to allow room for access to the unit for air flow and maintenance. If the heat pump is to
be mounted outdoors, it must be placed in to a weather proof housing to protect from direct
weather and rain.
2. Connect the plumbing from the tank to the heat exchanger FPT PVC water fittings on the front
of the heat pump. Be careful not to over tighten the plastic fittings.
3. Install flow switch (if supplied) either on the water inlet or outlet side with at least 12 inches of
straight pipe on the inlet side and 6 inches on the outlet side.
4. Submerse into tank the ½” titanium temperature sensor probe in
the water.
Optional titanium dry sensor well: Install in the water inlet
plumbing of the heat pump.
5. Check for water leaks.
6. Plug-in the temperature controller to the flow switch (optional) and then to the heat pump.
If hard wired, the installation must proceed in accordance with national building and
electrical codes by qualified technicians only.

Copyright© 2016 Aqua Logic, Inc. Effective date of 1/2016
Initial Start-up: Read all of the instructions before energizing unit.
Caution: When the ambient air temperature is 60°F and below a compressor crankcase heater must be installed.
It’s important to allow the oil in the compressor to warm-up at least 8 hours before starting up the unit. If the
ambient air temperature is below 60˚F, apply power to the unit and set controller so the compressor does not
energize or by-pass the heat exchanger water supply so the flow switch will not activate the unit.
1. Turn on water pump and set the correct water flow rate.
2. Apply power to the unit.
3. Adjust temperature controller set point to desired water temperature.
(See “Heat pump Control Set-up”)
Cooling:
When the temperature control calls for cooling, the heat pump will turn on and pull the water
temperature down to the desired set point and then shut off. When the water temperature
rises above the differential setting, the heat pump will repeat the cycle and cool down to
temperature set point.
Heating:
When the temperature control calls for heating, the heat pump will turn on and heat the water
temperature up to the desired set point and then shut off. When the water temperature goes
down below the differential setting, the heat pump will repeat the cycle and heat up to the
temperature set point.

Copyright© 2016 Aqua Logic, Inc. Effective date of 1/2016
HEAT PUMP 2 STAGE CONTROLLER PROGRAMMING
STEP
ANNUCIATOR
DESCRIPTION
DISPLAY
1
F
or C
Fahrenheit or Celsius Scale
F
2
S1 (blinking)
Stage 1 Set point Temperature
S1
77
3
DIF1 (blinking)
Stage 1 Differential
Temperature
DIF1
1
4
C1/H1
Stage 1 Heating Mode
H1
5
S2 (blinking)
Stage 2 Set point Temperature
S2
77
6
DIF2 (blinking)
Stage 2 Differential
Temperature
DIF2
1
7
C2/H2
Stage 2 Cooling Mode
C2
Liquid Crystal Display (LCD)
The LCD display provides a constant readout of the sensor temperature and indicates if the output relay is energized. When the S1 or S2
annunciator is constantly illuminated during operation, the relay is energized. The display is also used in conjunction with the keypad to allow
the user to adjust the set point temperature, differential and heating /cooling modes.
Programming Steps and Display
The control can be programmed in four simple steps using the LCD display and the three keys on the face of the control. (See photo for
display and keys.)
NOTE: Stage 1 must be set for heat mode and Stage 2 for cool mode for correct operation.
1. To start programming, press the SET key once to access the Fahrenheit/Celsius mode. The display will show the current status, either F
for degrees Fahrenheit or C for degrees Celsius. Then press either the up arrow or down arrow key to toggle between the For C
designation.
2. Press the SET key again to access the heat mode set point temperature. The LCD will display the current set point temperature and the
S1 annunciator will be blinking to indicate that the control is in the set point mode. Press either the up key to increase or down key to
decrease the set point to the desired temperature.
3. Press the SET key again to access the heat mode differential temperature. The LCD will display the current differential and the DIF 1
annunciator will be blinking to indicate that the control is in the differential mode. Then press either up key to increase or the down 
key to decrease the differential to the desired setting (minimum 1˚F, maximum 30˚F).
4. Press the SET key again to select heat mode. The LCD will display the current mode: C1 or H1. Then press either up key to increase
or the down key to select the correct Stage 1 mode. Stage 1 MUST be in the H1 mode for correct operation.
5. Press the SET key again to access the chill mode set point temperature. The LCD will display the current chill set point temperature and
the S2 annunciator will be blinking to indicate that the control is in the set point mode. Then press either the up key to increase or down
key to decrease the set point to the desired temperature. S1 and S2 should both be set for the same temperature.
6. Press the SET key again to access the chill mode differential temperature. The LCD will display the current differential and the DIF 2
annunciator will be blinking to indicate that the control is in the differential mode. Then press either up key to increase or the down 
key to decrease the differential to the desired setting (minimum 1°F, maximum 30˚F). DIF1 and DIF2 should both be set to the same
value for best results.
7. Press the SET key again to access the heating mode. The LCD will display the current mode: C2 or H2 Stage 2 MUST be in the C2
mode for correct operation.
8. Press the SET key again to exit programming mode. Controller will display current water temperature.
Controller will automatically drop out of “program mode” and return to “operating mode” 30 seconds after last key press.
Troubleshooting Controller Error Messages:
Display Messages
•E1 - Appears when the up or down key is pressed when not in the programming mode.
To correct: If the E1 message appears even when no keys are being pressed, replace the control.
•E2 - Appears if the control settings are not properly stored in memory.
To correct: Check all settings and correct if necessary.
•EP - Appears when the probe and or flow switch is open shorted or sensing a temperature that is out of range.
To correct: Check to see if the sensed temperature is out of range. If not , check for probe damage by comparing it to a known ambient
temperature between -30˚F and 220˚F. Replace the probe is necessary. Also, check for proper water flow through heater. If water flow is
correct, flow switch.
•EE - Appears if the EEPROM data has been corrupted.
To correct: This condition cannot be field repaired. Replace the control.
•CL - Appears if calibration mode has been entered.
To correct: Remove power to the control for least five seconds. Reapply power. If the CL message still appears, replace the control

Copyright© 2016 Aqua Logic, Inc. Effective date of 1/2016
Hi / Low refrigerant pressure cutout switch
For models DSHP-7, 8, 9 & 10 there is a pressure switch serves both as a high and low refrigerant safety
cutout to protect the heat pump. If there is no air or low air flow through the condenser the pressure
will build-up and cause the switch to trip off. When there a refrigerant leak, the switch will protect the
heat pump from functioning.
To reset the switch:
1. Remove black heat pump cover and locate
the Hi / Low pressure cutout.
2. Press the brass button to reset the heat
pump.
If the pressure switch will not reset call
Aqua Logic for help.

Copyright© 2016 Aqua Logic, Inc. Effective date of 1/2016
Heat pump Maintenance
Safety Precautions
1. Always wear safety eye wear and work gloves when installing and maintaining equipment.
2. Never assume electrical power is disconnected. Disconnect and check with voltage meter. Lock the
circuit off.
3. Keep hands out of areas when power is connected to equipment.
4. Refrigerate escaping into the air can cause frost-bite burns.
5. Refrigerate is toxic when burned.
Tank Side Heat Exchanger Cleaning:
The tank side heat exchanger should be cleaned approximately every 12 months or as needed to allow
proper performance.
WARNING:
When using bleach and acid special care should be observed.
Always wear hand, eye and body protection. Use rubber gloves.
DO NOT pour acid or bleach into the water. DO pour water into acid or bleach solution.
DO NOT perform acid and bleach flushing at the same time. The gas genera
ted by the
mixture is poisonous and can result in serious injury or death.
To remove organic deposits from titanium tube bundle:
1. Isolate the pool side heat exchanger. (see drawing next page)
2. Mix 1 part bleach to 3 parts distilled water in 20 gallon tank or larger container.
3. Circulate via pump the solution through heat exchanger for approximately one to two hours or as
needed.
4. Thoroughly rinse heat exchanger with clean water.
To remove mineral deposits from titanium tube bundle:
Use the same steps as above, but use muriatic acid instead of bleach. Be sure to follow the muriatic acid
manufacturer’s instructions for use and safety.
Condenser Cleaning:
For good performance, the condenser should be cleaned approximately every 12 months or as needed. Use
brush, vacuum or compressed air to clean condenser fins.

Copyright© 2016 Aqua Logic, Inc. Effective date of 1/2016
Heat pump Trouble Shooting Chart
Symptoms
Check / Solution
Heat pump not
functioning
Fuses or circuit breaker
1. OK > Temperature Control.
2. No power > Replace fuses
Temperature Control
1. OK > Pressure cutout switch
2. No display > Replace control
3. Check settings.
4. Error code > (see page 6)
Flow Switch
1. Pool water flow.
2. Water flow OK > Wiring > Replace flow switch.
Pressure Cutout Switch
1. Check condenser entering water flow and water
temperature.
2. Check for low refrigerant pressure > Check Refrigerant
level.
3. Liquid gauge high pressure > Check water to condenser.
4. No water through condenser> Check water regulating
valve.
5. Reset pressure switch.
Compressor
*Not running > Check start components > Replace compressor.
Heat pump running
but has low cooling
1. Clean heat exchanger and or condenser.
2. * Check compressor.
3. * Check refrigerate running pressure levels.
4. Check tank system requirements. Call Aqua Logic for
help.

Copyright© 2016 Aqua Logic, Inc. Effective date of 1/2016
ONE YEAR LIMITED WARRANTY
All Aqua Logic Delta Star Heat Pumps (DSHP) are warranted against defects in parts and workmanship
for a period of one (1) year from the date of original end user purchase. The limited warranty covers
only parts and labor based upon Aqua Logic service cost. Aqua Logic is not liable for field repair work
performed without prior written or verbal agreement and a Repair Authorization (RA) number with a
fixed maximum charge.
•The warranty applies only to the original purchaser and is not transferable.
•The warranty covers only the repair or replacement of Aqua Logic products and is limited to Aqua Logic’s
cost of defective parts.
•Once Aqua Logic determines that the defect is due to parts or workmanship and that the product is under
warranty, Aqua Logic will repair or replace the product solely at their discretion.
Our warranty does not cover the following:
• Damage caused by freezing, inadequate water flow, or no water flow.
• Damage caused by improper installation or maintenance by user or their agent.
• Damage caused due to misapplication of product.
• Damage caused by corrosion, abuse, accident, alteration or improper use.
• Damage caused by flood, fire, earthquake, tornado, or other acts of God.
• Damage caused by electrical spikes, surges, brownouts, or improper voltage or amperage.
• Damage caused by failure of any third party equipment (ie. controller, pump, etc.)
• Incidental damage to other equipment, property or livestock.
• Warranty will be voided if product labels are removed or defaced.
In the event of a defect or failure of the product please contact Aqua Logic immediately for assistance.
Aqua Logic will at their discretion:
• Provide user with replaceable parts to restore their unit to proper operation.
• Provide a Repair Authorization (RA) number with a specified dollar limit so that a qualified
Technician can provide a field repair.
• Provide a Return Authorization (RA) number to return the heat pump with original packaging to
Aqua Logic, Inc., 9558 Camino Ruiz, San Diego, CA 92126 by prepaid freight. You need to include the
serial number as well as proof of purchase and/or a copy of the original bill of sale along with the RA
number.
COD shipments will be refused. Aqua Logic shall not be responsible for shipping damage or loss.