Rheem Raypak 2450 Installation And Operation Manual Download Page 1

Page: 1 / 54

Effective: 11-20-20

Replaces: Catalog# 6000.56

P/N 241909 Rev. 1

Heat Pump Pool &

Spa Heater

Models 2450, 3450, 4450,

5450, 6450, 6450PD, 6450HC,

8450 & 8450HC

FOR YOUR SAFETY:

Do not store or use gasoline or other flammable vapors and

liquids or other combustible materials in the vicinity of this or any other appliance.

To do so may result in an explosion or fire.

NOTE:

The instructions in this manual are for the use of qualified individuals specially trained and experienced

in the installation and maintenance of this type of equipment and related system components. Installation and

service personnel are required by some states to be licensed. Persons not qualified shall not attempt to install,

service, or maintain this equipment.

This manual should be maintained in legible condition and kept adjacent to the heat pump pool heater or in a

safe place for future use.

INSTALLATION AND

OPERATION MANUAL

Summary of Contents for Raypak 2450

Page 1: ...r fire NOTE The instructions in this manual are for the use of qualified individuals specially trained and experienced in the installation and maintenance of this type of equipment and related system...

Page 2: ...2 Revision 1 reflects the following changes Formatting updated throughout Introduction text revised on page 5 Illustrated Parts list added on page 48...

Page 3: ...eration 32 3 Way Valve Control 32 Battery Back up 32 High Water Temperature Limit 32 High Pressure Switch Lockout 33 Low Pressure Switch Lockout 33 Water Pressure Switch 33 Sequence of Operation 33 14...

Page 4: ...ed 104 F 40 C A temperature of 100 F 38 C is considered safe for a healthy adult Special caution is suggested for young children 2 Drinking of alcoholic beverages before or during spa or hot tub use c...

Page 5: ...kly Register Your Unit While your unit is being installed by your professional and licensed installer of choice Please Take This Opportunity to Quickly Register Your Unit With the necessary informatio...

Page 6: ...least 3 ft by 3 ft 0 9m x 0 9m slightly larger if hurricane tie down brackets are installed See Figure 4 through Figure 6 for more details CAUTION The unit s supporting base must be high enough to kee...

Page 7: ...age 35 for proper procedures If the heater is located below the water line of the pool the Water Pressure Switch WPS or Water Flow Switch WFS might need to be adjusted or an external WFS might be need...

Page 8: ...ING TO ANY ADJACENT ANCHOR NOTE CHECK I O MANUAL FOR MINIMUM PAD DIMENSIONS AND SCREW LENGTH U O N N T S MECHANICAL UNIT FRONT ISOMETRIC N T S MECHANICAL UNIT BACK ISOMETRIC A B D CONCRETE SLAB BY OTH...

Page 9: ...ATICAL PURPOSES ONLY CONTROL COVER 18 GA ASTM A653 PAINTED DIM 1 DIM 2 DIM 4 DIM 3 CLIP A CLIP B CLIP D CLIP C CONTROL BOX CLIP OFFSET DIMENSION SHALL BE TAKEN FROM THIS SIDE ONLY N T S TIE DOWN CLIP...

Page 10: ...18 GA ASTM A653 PAINTED CONTROL COVER N T S ELEVATION TIE DOWN CLIPS B D A C 3000 PSI MIN CONCRETE BY OTHERS TYP ANCHOR PER SCHEDULE LOUVER PANEL TYP UNIT BASE PAN UNIT BASE PAN UNIT BASE PAN INTERNA...

Page 11: ...k with external control systems heat on demand options and other external time clock overrides Refer to the external control system s instructions and page 30 of this manual for installation informati...

Page 12: ...a safe place for re installation when needed to restart the system 7 PRESSURE DROP For system pressure drop information see Table B Flow GPM LPM Pressure Drop PSI 2450 3450 4450 5450 6450 6450HC 8450...

Page 13: ...d in these instructions for simplicity button to cycle between the modes Each press of the MENU button selects the next mode There is no automatic increment from continually pressing the MENU button I...

Page 14: ...buttons have been released for 2 seconds REMOTE Mode is accessed by pressing and holding the UP and DOWN buttons simultaneously for 3 seconds When exiting the REMOTE mode the control always selects t...

Page 15: ...ed pumps this denotes the PWM signal to be provided to the pump for pump operation Return Valve 1 Pool Spa Pool User Select the position of a 3 way valve located between the heater and the Pool Spa fo...

Page 16: ...Spa Pool User Select the position of a 3 way valve located between the heater and the Pool Spa for this scheduled pump period Suction Valve 3 PoolSpa Pool User Select the position of the 3 way valve...

Page 17: ...on of a 3 way valve located between the heater and the Pool Spa for this scheduled pump period Suction Valve 1 Pool Spa Pool Installer Select the position of the 3 way valve located between the Pool S...

Page 18: ...Variable Enabled Installer On 4 speed pumps this denotes the selected pump output which connects to the pump for the selected speed for this pump period On variable speed pumps this denotes the PWM s...

Page 19: ...It is displayed whenever EXV is enabled Water Temp View Only degrees F or C Installer Service Displays the water temperature sensor value used for temperature operation Installer Menu Yes or No No Se...

Page 20: ...he factory Will need to be set by Installer during any replacement of the control board EXV Disabled Type 1 Type 2 Installer Service Sub menu Set at the factory on new units Select Disabled if unit eq...

Page 21: ...tion of the 3 way valve located between the Pool Spa and the Pump for this scheduled pump period Pump On Time 2 12 00A 11 59P Installer Select ON time for Pump Period 2 to take effect Pump Off Time 2...

Page 22: ...Variable Enabled Installer On 4 speed pumps this denotes the selected pump output which connects to the pump for the selected speed for this pump period On variable speed pumps this denotes the PWM s...

Page 23: ...ed Water Temp View Only degrees F or C Installer Service Displays the water temperature sensor value used for temperature operation Installer Menu Yes or No No Select YES and press the MENU button to...

Page 24: ...nit if a specific outside temperature is measured Off allows operation at any ambient temperature Set Model Type HEAT ONLY POWER DEFROST HEAT COOL HEAT COOL Installer Service Sub menu Set at the facto...

Page 25: ...d the Pool Spa for this scheduled pump period Suction Valve 1 Pool Spa Pool Installer Select the position of the 3 way valve located between the Pool Spa and the Pump for this scheduled pump period Pu...

Page 26: ...Variable Enabled Installer On 4 speed pumps this denotes the selected pump output which connects to the pump for the selected speed for this pump period On variable speed pumps this denotes the PWM s...

Page 27: ...Water Temp View Only degrees F or C Installer Service Displays the water temperature sensor value used for temperature operation Installer Menu Yes or No No Select YES and press the MENU button to gai...

Page 28: ...Service Sub menu The installer can program the control to Lock out operation of the unit if a specific outside temperature is measured Off allows operation at any ambient temperature Set Model Type HE...

Page 29: ...tpoint as selected in the Operating mode The heat demand begins when the water temperature is 0 5 F 0 3 C or more colder or 0 5 F 0 3 C or more hotter in cooling mode than the setpoint 13 ADDITIONAL F...

Page 30: ...spa water effectively on its own or when the target temperature will require a larger amount of BTUs than what the Heat Pump Pool Heater can provide on its own during a given time and or outside condi...

Page 31: ...maximum duration of 6 hours in 15 minute increments 3 The timer will start to count down from the selected period of time and the unit will operate to heat the spa water based on the previously select...

Page 32: ...u to operate 3 way valves whether or not the heat pump control will actually control the pump or not The control is equipped to operate system 3 way valves The control will set the 3 way valves to the...

Page 33: ...opens the control de energizes the compressor output and the fan continues to run for 15 minutes after the HPS opened and the display will show Hi Press Trip If the high pressure switch trips 7 times...

Page 34: ...ew minutes the discharge air temperature should be 8 10 F 4 4 5 5 C cooler than the air entering the unit When the unit has been operating in the cooling mode for a few minutes the discharge air tempe...

Page 35: ...ossible in some areas to prevent unit freeze damage by operating the pump continuously during freezing weather However this results in significantly higher pump operating costs Further if a sustained...

Page 36: ...to 10 F 5 5 C per night compared to 4 F 2 2 C or fewer when a blanket is used Without a blanket the total heat gained during the day can be lost overnight Are rapid heat losses occurring in some other...

Page 37: ...ification that the compressor is under a 3 minute delay before turning On This can be bypassed by pressing the UP and DOWN buttons simultaneously Nothing wrong just notification as to why the unit is...

Page 38: ...nsformer Replace correct as necessary Hi Water Temp Water temperature sensor reads at or above 108 F 42 C Compressor is prevented from operating Temperature measured on water sensor must be below 103F...

Page 39: ...Press the MENU button to access the additional Service information Continue to press the MENU button until Set Factory Defaults appears on the display Press and hold the UP and DOWN button for 5 secon...

Page 40: ...p until the bottom slides into place against the cabinet and the panel where the Inlet Outlet water connections are secured ACAUTION Ensure that the fan motor wires are routed into the slot at the top...

Page 41: ...OR SPA Figure 13 Plumbing Schematic No External Bypass Plumb the heater AFTER the filter and before any chlorinators NOTE Models 2450 4450 For systems with pumps less than 1 1 2 HP under 40 GPM 151 L...

Page 42: ...he filter and before any chlorinators NOTE Models 2450 4450 For systems with pumps of 1 1 2 HP or greater over 40 GPM 151 LPM Models 5450 8450 For systems with pumps of 2 HP or greater over 80 GPM 303...

Page 43: ...43 Figure 15 Piping for Heat Pump Pool Heater and Gas Pool Heater...

Page 44: ...PM 1 1 2 1 1 2 20 GPM 1 1 2 2 30 1 1 2 1 1 2 30 1 1 2 2 1 2 30 1 1 2 3 40 1 1 2 2 40 1 1 2 3 Sizing based on10 ft sec flow rates MINIMUM PIPE SIZES 2 UNITS 3 4 UNITS 5 6 UNITS 5450 8450 BRANCH MAIN BR...

Page 45: ...45 24 WIRING DIAGRAM 208V 230V SINGLE PHASE DIGITAL MODELS NC NO COM L1 L2 L2 BK TO TRANSFORMER R BK L2 L1 INSERT A VOLTAGE MONITOR W BL BK O R...

Page 46: ...L models only The control will use this value as the Heating setpoint and the Cooling Setpoint will be the SETPOINT COOLING DEADBAND established in the INSTALLER menu 3 Press and hold the UP and DOWN...

Page 47: ...ed for thermostat decisions is the average of the 2 thermistors 10KOhm sensors are used for the Ambient Air Temperature sensor the Coil Temperature sensor and Aux Heat Temperature sensor field supplie...

Page 48: ...27 ILLUSTRATED PARTS LIST 2 F 7 S 1 F 3 F 6 S 4 S 5 S 3 S 2 S 1 S 2 H 3 M 2 M I M 4 M 4 C 7 J 6 J 8 J 2 J 4 J 6 C 9 S 1 J 5 J 3 J 3 S 2 S 1 H 4 H 5 S 4 S 2 C 8 S 3 H 3 C 5 C 7 C 5 S 1 C MODELS 2450 44...

Page 49: ...299 H000299 2 J Transformer H000331 H000331 H000331 3 J Water Pressure Switch H000025 H000025 H000025 4 J Contractor H000320 H000320 H000320 5 J Capacitor H000380 H000381 H000381 6 J Control Board Dig...

Page 50: ...50 1 J 5 J 3 J 6 C 4 J 2 J 9 J 9 S 1 M 6 J 4 C 3 M 4 M 7 J 2 M 5 S 4 S 1 F 7 S 2 F 1 H 3 F 1 C 8 H 2 H 6 S 5 S 7 H 4 H 3 H 5 C 5 H 6 H 3 C 2 C 8 S 3 S 7 C 2 S 2 S 1 S 4 S 3 S 5 S 6 J MODELS 5450 8450...

Page 51: ...1 H000371 H000371 J CONTROL BOX 1 J Fan Relay DPST H000299 H000299 H000299 2 J Transformer H000331 H000331 H000331 3 J Water Pressure Switch H000025 H000025 H000025 4 J Contactor 1 PH H000043 H000043...

Page 52: ...52 NOTES...

Page 53: ...53 NOTES...

Page 54: ...Raypak Inc 2151 Eastman Avenue Oxnard CA 93030 805 278 5300 Fax 805 278 5468 ISO 9001 REGISTERED QUALITY MANAGEMENT SYSTEM www raypak com...

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