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X

treme Pumping

Cold Water Run System

The  XTherm  comes  standard  with  a  state-of-
the-art Cold Water Run system factory mounted
and plumbed. Raypak’s Cold Water Run system
provides 

constant 

protection 

against

condensation  in  the  primary  heat  exchanger.
The  system  utilizes  a  variable  speed  pump  to
inject  just  the  right  amount  of  water  from  the
main  system  loop  into  the  heater  to  maintain
the optimum inlet temperature.  This allows the
full capacity of the heater to be utilized to meet
the  system  load,  while  at  the  same  time
continuously  maintaining  the  optimum  inlet
water  temperature  to  prevent  condensation  in
the primary heat exchanger. All of this keeps the
condensate  were  it  belongs,  in  the  stainless
steel secondary heat exchanger.

6

68%

78%

82%

97%

4,000,000

$80,653

$66,424

$62,047

$49,756

BTUH

Annual Fuel Usage

50 meters X 25 meters X 2 meters deep

Efficiencies

68%

78%

82%

97%

2,000,000

$26,243

$22,039

$20,712

$16,898

BTUH

Annual Fuel Usage

25 meters X 25 meters X 1-1/2 meters deep

Efficiencies

X

treme Pumping

The annual fuel usage is based on maintaining an indoor
swimming pool at 80ºF for 6 months of the year and using a
fuel cost of $1.00 per therm.

How to use the table below:

1. Select the desired temperature of the pool water.
2. Determine the mean (average) temperature of the month in which the pool will be
used.
3. Subtract the mean temperature from the desired swimming temperature. The
difference is the temperature rise.
4. Calculate the surface area of the pool in square feet.
5. Under the column headed by the temperature rise, determined in Step 3, find the
number closest to, but not less than, the pool surface area from Step 4. The left-hand
column will give you the correct model heater.

Sizing Formula

BTUH INPUT REQUIRED = (Pool Surface Area square feet) X (Temperature Rise) X (15)
This formula is based upon a 1º to 1-1/4º F temperature rise per hour and an average
3-1/2 MPH wind velocity.
Where high-wind conditions exist, select one size larger than determined by the
formula.

Rapid Heating

For 1-1/2ºF rise per hour: Increase BTUH input by 50%.
For 2ºF rise per hour: Increase BTUH input by 100%.
Always select a heater equal to or larger than the requirement. Over-sizing generally
reduces fuel costs.

Using one 2,000,000 BTUH Heater

Using two 2,000,000 BTUH Heater

6200.12-E_XTherm Brochure 8 page  3/29/11  10:59 AM  Page 7

Summary of Contents for Xtherm 1005

Page 1: ...Can be vented with PVC pipe ...

Page 2: ...sation in the primary heat exchanger Raypak s evaporator system collects and re evaporates condensate which may form during initial start up Simplicity The Raypak XTherm will precisely heat your pool Utilizing the latest European technology for the combustion components the optimum fuel air ratio is maintained throughout the entire range of the load tracking operation The XTherm automatically self...

Page 3: ...ous inlet water temperature 12 Cold Water Run Pump The XTherm comes factory equipped with a built in Cold Water Run system This advanced water control system keeps the inlet water temperature to the primary heat exchanger above 120 F regardless of the incoming water temperature It constantly self adjusts and regulates the incoming water flow while still maintaining a constant ΔT in the heat exchan...

Page 4: ... be drawn from inside the heater through screened plenum openings See photo above right 4 Gas Inlet The XTherm will operate at 100 full rate with gas pressures as low as 4 0 w c 5 Water Outlet 6 Water Inlet The XTherm can accept as low as 50 F continuous inlet water temperature without damage to the primary heat exchanger 7 Access Panel to Cold Run Pump Easily removable access panel even when unit...

Page 5: ...ce Minimum Do not install on carpeting Note Local codes may require increased clearances Heater Side Model Pool Heater Output Efficiency MBTUH Input MBTUH 1005 999 969 97 1505 1500 1455 97 2005 1999 1939 97 PHYSICAL DATA 1005 55 1 8 45 47 1 8 36 1 2 1 1 4 6 40 1 16 11 1 2 6 47 1 8 8 1 16 6 1 16 1065 12 10 1505 67 1 8 57 59 1 16 38 1 2 1 1 4 8 52 1 16 12 5 8 8 59 1 8 8 3 16 6 1 16 1234 12 14 2005 8...

Page 6: ...is based on maintaining an indoor swimming pool at 80ºF for 6 months of the year and using a fuel cost of 1 00 per therm How to use the table below 1 Select the desired temperature of the pool water 2 Determine the mean average temperature of the month in which the pool will be used 3 Subtract the mean temperature from the desired swimming temperature The difference is the temperature rise 4 Calcu...

Page 7: ...m comes equipped with a microprocessor controlled diagnostic control center that displays its information on a 2x20 character LCD display in plain English This control monitors system safeties ignition faults and system status while storing up to 16 reported faults Raypak s diagnostic center monitors the fault outputs of the Fenwal ignition control converting the Fenwal s fault codes into real Eng...

Page 8: ... Display Lights 4 Temperature Controller with 3 Water Sensors TempTracker Mod Multiple Heater Controller TempTracker Mod up to 16 heaters Hot Surface Ignition System 1 try 3 try High Low Gas Pressure Switches Blocked Vent and Air Pressure Switches High Limit Switch Manual Reset Fixed Manual Reset Adjustable Automatic Reset Adjustable Shipped Loose Low Water Cut Off 24V With Manual Reset and Test B...

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