aquatherm Calorex AT500 Installation & Operation Manual Download Page 6

C. PLUMBING & WATER CONNECTIONS 

6. POOL/SPA COMBINATIONS W/SPILL-OVER

Use this diagram for a connected pool and spa, where the spa has a spill-over type waterfall into 
the pool.  Where 
one pump and 
one heater are 
used for both  
t h e   p o o l   a n d 
spa. If the water 
pump exceeds 
1.5 H.P. then in-
stall a external 
bypass as shown 
on page 5.

HEAT PUMP

OUT

IN

FILTER

WATER

PUMP

TO

SPA JETS

TO SPA

SPILLOVER

CHLORINATOR

TO POOL

RETURN

SPA

SPA

POOL

POOL

Jandy™

3-Way Valve

VERTICAL

CHLORINATOR

LOOP

FROM

SPA

SUCTION

FROM

POOL

SKIMMER

SUCTION

FROM

POOL

FLOOR

SUCTION

OFF

OFF

JANDY ™

HEAT PUMP

IN

OUT

CHLORINATOR

TO POOL

RETURN

FROM

POOL

SKIMMER

SUCTION

FROM

POOL

FLOOR

SUCTION

VERTICAL

CHLORINATOR

LOOP

MOTORIZED

SOLAR

VALVE

FROM

SOLAR

TO

SOLAR

AUTOMATIC

SOLAR

CONTROL

DEVICE

WATER

PUMP

FILTER

7. PLUMBING WITH SOLAR.

   

  Plumbing for a system where a solar pool 
heater is installed.  It is strongly advised 
that an automatic solar 
control device be used 
when used with the 
heat pump.  If the water 
pump exceeds 1.5 H.P. 
then install either of 
the optional bypasses 
as shown on page 5.
 The 

heat 

pump 

and 

solar can be operated 
together. The  heat 
pump will share the heating load with the solar. 
If the solar is operated on cloudy days, while rain-
ing, at night or at low air temperatures, it may cool 
the pool or spa.  An automatic solar control will shut 
the solar off when there is no solar heat gain, otherwise 
it should be shut off manually during these times.
  To use the heat pump as a backup to the solar, set the heat pump thermostat 2 to 4 degrees below 
the solar’s target temperature setting. Therefore, if the solar is not  maintaining water  temperature, 
the heat pump will come on to assist the solar.  Some thermostat 

fi

ne tuning may be required by the 

user.

8. PLUMBING ABOVE OR BELOW POOL WATER LEVEL

5.

SEE CHLORINATOR LOOP & CHECK 

VALVE REQUIREMENT ON PAGE 5.

Summary of Contents for Calorex AT500

Page 1: ...606 www aquathermheatpumps com INFORMATION PLACEMENT PLUMBING ELECTRICAL MEMBER NATIONAL POOL SPA INSTITUTE HEAT PUMP OUT IN FILTER WATER PUMP TO SPA JETS TO SPA SPILLOVER CHLORINATOR TO POOL RETURN S...

Page 2: ...ombination Plumbing 7 Plumbing with Solar 8 Plumbing Above or Below Water Level D Electrical Connections Data Plate Page 6 E Control Panel Information Page 6 F How to Operate Your Heat Pump Page 7 10...

Page 3: ...ON WATER IN 2 MALE THREADED UNION SERIAL NUMBER PLATE ELECTRICAL INSTALLATION PORT S A UNIT DESCRIPTION 2 TECHNICAL SPECIFICATIONS HEAT OUTPUT 102 000 BTU HR COEFFICIENT OF PERFORMANCE 4 6 VOLTAGE HZ...

Page 4: ...ce 3 Keep sprinkler heads at least 6 feet away from the heat pump Do not allow the sprinkler to spray the unit in any way to prevent damage 4 If the unit is installed under a roof overhang or under a...

Page 5: ...are 2 unions included Water IN on the RIGHT Water OUT on the LEFT PLUMB AFTER the FILTER BEFORE any CHLORINATORS or CHEMICAL FEEDERS C PLUMBING WATER CONNECTIONS 3 FREEZING CONDITION PLUMBING In areas...

Page 6: ...system where a solar pool heater is installed It is strongly advised that an automatic solar control device be used when used with the heat pump If the water pump exceeds 1 5 H P then install either o...

Page 7: ...ON position the heater will run anytime water temperatures drop below 60 F You must position the toggle switch in the middle OFF position to keep the unit from operat ing when water temperatures fall...

Page 8: ...prevents damage to the compressor if the heat pump was to repeatedly cycle on and off 5 Allow your pool or spa filter pump to run continuously until the desired temperature is reached This may take s...

Page 9: ...typically lose only 2 4 of heat per night versus 8 10 overnight in unblanketed pools Reductions of 40 60 on heating bills can be achieved by using solar blankets 10 SEASONAL SHUT DOWNS During the swi...

Page 10: ...of continual use providing its integrity has not been compro mised by improper water chemistry L MAINTENANCE OF AREA 12 MAINTENANCE OF AREA It is important to keep the surrounding area adjacent to yo...

Page 11: ...lling leaves can accumulate on the inside of the machine annual maintenance is recommended It is recommended that annual planned maintenance be performed on your heat pump by a certified Aquatherm Ser...

Page 12: ...c Thermostat Mod ule This will save you from having to change the thermostat switch each time you change from pool to spa and back again You can also automate your pool and spa isolation valves with a...

Page 13: ...THE ON POSITION AND ROTATE BOTH THERMOSTATS TO THE MAXIMUM SETTING S THE UNIT OPERATING CORRECTLY S THE UNIT OPERATING CORRECTLY HECK TO SEE IF THE POOL PUMP IS OPERATING AND THE FLOW LIGHT IS ON AKE...

Page 14: ...W TO SUPPORT THE HEATER S OPERATION S THE DEFROST LIGHT ON S THE HEATER PERFORMING PROPERLY S THE POOL PUMP TIMER SET TO ALLOW EXTENDED OPERATION OF THE HEATER XTEND THE POOL PUMP S HOURS OF OPERATION...

Page 15: ...OOL OR IS NORMAL CONDENSATION N ALTERNATIVE METHOD OF DETERMINING A POOL WATER LEAK IN THE HEATER IS TO TURN THE MACHINE OFF FOR A FEW HOURS AND SEE IF WATER CONTINUES TO DRAIN FROM THE UNIT 4HIS WOUL...

Page 16: ...2004 Aquatherm Heat Pumps 2213 Andrea Lane Ft Myers FL 33912 888 297 3826 239 482 0606 www aquathermheatpumps com MEMBER NATIONAL POOL SPA INSTITUTE calorex usa llc A Division of Aquatherm Heat Pumps...

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