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Raypak 2450 Series, Installation And Operation Manual, Page: 42 / 52

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Raypak 2450 Series Installation And Operation Manual Download Page 42

42

Plumbing Diagrams

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INTRODUCTION

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Fig. 12: Plumbing Schematic – No External Bypass 

(Plumb the heat pump pool 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 lpm)

             Models 5450-8450 

– For systems with pumps less than 2 HP (under 80 gpm / 

303 lpm)

            No external bypass required.

Summary of Contents for 2450 Series

Page 1: ...e 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 ...

Page 2: ... phone number of the professional and licensed entity that performed the installation for you Fig i Model and Serial Number Location With all of the above information in hand please contact us and ask to register your brand new heat pump or Online http warranty raypak com You will be given a Warranty Registration Confirmation number which you should notate and keep in one location along with your ...

Page 3: ...ontrolled they can lead to excessive chlorine level which can damage your heater Further advice should be obtained from your pool or spa builder accredited pool shop or chemical supplier for the correct levels for your water Recommended Level s Fiberglass Pools Fiberglass Spas Other Pool Spa Types Water Temp F C 68 F to 88 F 20 C to 31 C 89 F to 104 F 32 C to 40 C 68 F to 104 F 20 C to 40 C pH 7 3...

Page 4: ...2 Defrost Operation 32 3 Way Valve Control 32 Battery Back up 33 High Water Temperature Limit 33 High Pressure Switch Lockout 33 Low Pressure Switch Lockout 33 Water Pressure Switch 33 Sequence of Operation 33 Digital Controls Operating Instructions 34 To Increase or Decrease the Desired Water Temperature Pool or Spa Mode 34 Select Temperature in C or F 34 Heat Cool Operation 34 System Start Up 35...

Page 5: ...ered 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 can cause drowsiness which could lead to unconsciousness and subsequently result in drowning 3 Pregnant Women Beware Soaking in water over 102 F 39 C can cause fetal damage during the first three months of pregnancy resulting in the birth of a brain da...

Page 6: ...vaporator coil and discharged through the top grille Allow at least 5 ft 1 5 m clearance above the unit for unrestricted air discharge DO NOT install the unit under a porch or deck Refer to Fig 1 Recircula tion of cold discharge air back into the evaporator coil will greatly reduce the unit s heating capacity and efficiency To minimize water piping locate the unit as close as possible to the exist...

Page 7: ...re freezing tempera tures can be encountered drain the water circuit to prevent possible freeze up damage Refer to Freeze Protection section on page 35 for proper procedures If the location of the HPPH is 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 needed For high wind installation requirements refer ...

Page 8: ...PACING 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 OTHERS TYP CONCRETE SLAB BY OTHERS TYP C THESE ISOMETRICS ARE INTENDED FOR DIAGRAMMATICAL PURPOSES ONLY CONTROL COVER 18 GA ASTM A653 PAINTED N T S ELEVATION TIE DOWN CLIPS B D A C 3000 PSI MIN CONCRE...

Page 9: ...RAMMATICAL 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 LAYOUT PLAN DATUM FACE 1 000 1 250 0 750 1 000 0 306 TYP TIE DOWN CLIP 8 000 MIAMI TECH CLIP 14GA 0 07 ASTM A653 Fu 90 KSI STEEL CUTD8 OR 0 080 5052 H32 ALUMINUM CUTDA8 FLORIDA APPROVAL FL 19731 1...

Page 10: ...NLY 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 INTERNAL POST ADJACENT TO CONTROL BOX A C ARE SIMILAR AND OCCUR ON OPPOSITE FACES 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...

Page 11: ...nd page 31 of this manual for installation information An earth ground lug is located to the right side of the water connections Water Connections 1 Connect the heat pump pool heater in the return water line between the filter and the pool spa See the Plumbing Diagrams beginning on page 42 2 Connect the filter outlet to the fitting marked INLET ENTREE at the bottom front of the unit 3 Connect the ...

Page 12: ...circulation to continue Please refer to the plumbing diagrams starting on page 42 for further instruction Please note that some municipalities do not allow the use of a shut off valve on the effluent outlet side of any heating equipment especially when there is one on the inlet side These entities typically instead allow a PVC tee and spring check valve on the effluent outlet side This is allowed ...

Page 13: ...trol Yes or No and 3 Auxiliary control Yes or No and then what type External Heat Auxiliary Output or Remote Output Once these choices are made then additional information relating to the establishing of pump periods pump speeds during each period and Return Suction Valve positions during each period must be determined and set in the control The options for the control can be very simple or very d...

Page 14: ...noted on the display in HEAT ONLY POWER DEFROST and HEAT COOL configurations the default values and range of adjustable values as well as a brief description of the feature of 6 hours maximum Pressing the DOWN button will decrease the timer by 15 minute increments The timer will start and the unit will begin heating as necessary to maintain the Spa setpoint temperature for this timer duration At t...

Page 15: ...r 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 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 HPPH and the Pool Spa for this scheduled pump period Suction Valve 1 Pool Spa Pool ...

Page 16: ...a for this scheduled pump period Suction Valve 3 PoolSpa Pool User Select the position of the 3 way valve located between the Pool Spa and the Pump for this scheduled pump period Pump On Time 4 12 00A 11 59P User Select ON time for Pump Period 4 to take effect Pump Off Time 4 12 00A 11 59P User Select OFF time for Pump Period 4 to stop Pump Speed 4 1 4 if 4 Speed Enabled 0 100 if Variable Enabled ...

Page 17: ...d pumps this denotes the PWM signal to be provided to the pump for pump operation Return Valve 1 Pool Spa Pool Installer Select the position of a 3 way valve located between the HPPH 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 Spa and the Pump for this scheduled pump period Pump On Time 2 12...

Page 18: ...bled 0 100 if 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 signal to be provided to the pump for pump operation Return Valve 4 Pool Spa Pool Installer Select the position of a 3 way valve located between the HPPH and the Pool Spa for this schedule...

Page 19: ... temperature 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 Select YES and press the MENU button to gain access to additional programming selections in this Installer Service Sub menu Select No and the next MENU button press returns to the Set Curren...

Page 20: ...isabled Type 1 Type 2 Installer Service Sub menu Set at the factory on new units Select Disabled if unit equipped with TXV for board replacement EXV Type 1 is 500 step EXV EXV Type 2 is 1600 step EXV Change EXV to Yes No Installer Service Sub menu This screen asks if you really want to change the EXV setting the UP or DOWN button must be pressed to show YES before the EXV type will be changed Brow...

Page 21: ...3 way valve located between the HPPH 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 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 12 00A 11 59P Installer Select OFF time for Pump Period 2 to...

Page 22: ...bled 0 100 if 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 signal to be provided to the pump for pump operation Return Valve 4 Pool Spa Pool Installer Select the position of a 3 way valve located between the HPPH and the Pool Spa for this schedule...

Page 23: ...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 Select YES and press the MENU button to gain access to additional programming selections in this Installer Service Sub menu Select No and the next MENU button press returns to the Set Current Time screen Pump Operation 4 Speed E...

Page 24: ...ture Set Model Type HEAT ONLY POWER DEFROST HEAT COOL HEAT COOL Installer Service Sub menu Set at the factory Will need to be set by Installer during any replacement of the control board EXV Disabled Type 1 Type 2 Disabled Installer Service Sub menu Set at the factory on new units Select Disabled if unit equipped with TXV for board replacement EXV Type 1 is 500 step EXV EXV Type 2 is 1600 step EXV...

Page 25: ...pa Pool Installer Select the position of a 3 way valve located between the HPPH 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 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 12 00A 11 59P Ins...

Page 26: ...bled 0 100 if 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 signal to be provided to the pump for pump operation Return Valve 4 Pool Spa Pool Installer Select the position of a 3 way valve located between the HPPH and the Pool Spa for this schedule...

Page 27: ...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 Select YES and press the MENU button to gain access to additional programming selections in this Installer Service Sub menu Select No and the next MENU button press returns to the Set Current Time screen Pump Operation 4 Speed E...

Page 28: ... 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 factory Will need to be set by Installer during any replacement of the control board EXV Disabled Type 1 Type 2 Disabled Installer Service Sub menu Set at the factory on new units Select Disabled if unit equipped ...

Page 29: ... or Spa setpoint 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 Additional Features Pump Control The control is equipped to operate the system pump The control provides for an output for a single speed pump 0 75A 24VAC maximum as well as an output for a variable speed ...

Page 30: ...l heater gas HPPH or solar This feature is ideal for when using a HEAT PUMP GAS HEATER combo where a Gas Heater will be providing back up heating for your Heat Pump Pool Heater Gas Heaters are usually used to assist when the temperature is too cold for a Heat Pump Pool Heater to heat the pool spa water effectively on its own or when the target temperature will require a larger amount of BTUs than ...

Page 31: ...d when operating in this mode This func tionality will override all other program settings for the period of time selected by the user during the TIMED SPA initiation WARNING If the Spa heating in a pool spa system is controlled by an external controller 3 way valves MAY need to be manually adjusted in order to use the TIMED SPA feature of this HPPH Failure to properly adjust the 3 way valves may ...

Page 32: ...ne ambient temperatures and cur rent and baseline coil temperatures when the coil temperature drops below the Defrost Temp set in the Installer Service sub menu Factory default is 35 F 1 6 C The control shuts off the fan and activates the reversing valve so the hot refrigerant gas is directed to the coil to defrost the coil When the coil sensor sees temperatures above the Def Terminate value set i...

Page 33: ...r them to be in a different state The rating of the control contacts is 0 75A at 24VAC maximum WARNING If the Spa heating in a pool spa system is controlled by an external controller 3 way valves MAY need to be manually adjusted in order to use the TIMED SPA feature of this HPPH Failure to properly adjust the 3 way valves may result in overheating of the pool water or other undesirable results Bat...

Page 34: ...ool temperature Additionally as mentioned earlier the unit is compatible with most 2 wire and 3 wire control automation systems Digital Controls Operating Instructions The electronic board has the capability of memorizing two different programmed temperature settings as follows For a pool maximum 95 F 35 C For a spa maximum 104 F 40 C To Increase or Decrease the Desired Water Temperature Pool or S...

Page 35: ...with the single screw at the top center of each panel 5 Backwash or otherwise clean the pool filter If necessary clean the skimmer basket and pump strainer 6 Set the valves to ensure proper water flow through the unit NOTE At the beginning of the heating season or whenever the pool water temperature is to be raised several degrees the pool pump and heat pump pool heater may need to operate continu...

Page 36: ...t extracts humidity from the air as it passes through the coil similar to the way a cold drink outside sweats on a hot day This condensation drains from the bottom of the unit 1 Routinely check to be sure the condensation drain holes in the base of the unit are not plugged with dirt or debris See Fig 9 for condensate drain hole locations 2 If condensation becomes a problem optional drain pans may ...

Page 37: ...overnight Are rapid heat losses occurring in some other way such as high wind spillage rainfall flow through solar panels at night or a high water table B UNIT IS NOT RUNNING Is the temperature display ON If not the circuit breaker may be shut OFF or tripped Reset the breaker by switching it OFF and then back ON Verify that the breaker is set and operating properly before calling for service Are t...

Page 38: ...t 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 not currently operating Valve Chng Delay Notification that the 3 way valves are being commanded to change positions Pool to Spa or Spa to Pool Nothing wrong just notification as to why the unit is not currently op...

Page 39: ...out Compressor not operating due to low 24VAC power supply Voltage must be greater than 17VAC for 4 seconds before compressor operation is enabled Check supply power to unit and check 24VAC from transformer 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 A...

Page 40: ... D E or F This operation changes all adjustable settings to factory default settings Enter the Installer Service Mode by holding the MENU and UP buttons for 3 seconds Scroll through the information until you reach the Installer Menu screen NOTE The MANUFACTURER IS NOT RESPON SIBLE for these adjustments NOTE The Service number is located on the front of the HPPH at the brand label press the UP or D...

Page 41: ...g to give access inside the unit NOTE The top of the unit may also be removed for greater access as desired Fig 11 Sheet Metal Screws to remove Junction Box Panel 10 After service reposition the junction box and insert the top first and lift up until the bottom slides into place against the cabinet and the panel where the Inlet Outlet water connections are secured 11 Reinstall the compressor wire ...

Page 42: ... Fig 12 Plumbing Schematic No External Bypass Plumb the heat pump pool 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 lpm Models 5450 8450 For systems with pumps less than 2 HP under 80 gpm 303 lpm No external bypass required ...

Page 43: ...AFTER the 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 lpm External bypass required Adjust the bypass valve to divert a minimum of 20 gpm 76 lpm 2450 4450 or 30 gpm 114 lpm 5450 8450 through the heat pump pool heater ...

Page 44: ...44 Fig 14 Pool Piping for Heat Pump Pool Heater and Gas Pool Heater ...

Page 45: ...1 1 2 20 GPM 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 BRANCH MAIN BRANCH MAIN 30 GPM 40 60 80 2 2 2 2 2 3 3 4 30 GPM 40 60 80 2 2 2 2 2 1 2 3 4 4 30 GPM 40 60 80 2 2 2 2 4 4 5 5 MINIMUM PIPE SIZES 2 UNITS 3 4 UNITS 5 6 UNITS 40 1 1 2 4 ...

Page 46: ...46 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 47: ...d hold the UP and DOWN buttons for 3 seconds to enter the Remote Mode 4 When in the Remote Mode the maximum setpoint is the SPA MAX TEMP Spa POOL MAX TEMP Pool 5 Press and hold the UP and DOWN buttons for 3 seconds to exit the Remote Mode 6 The digital board will default to the OFF mode allowing the user to select the appropriate mode under local control 2 Wire Controllers For Chill Mode Heat Cool...

Page 48: ... for thermostat decisions is the average of the 2 thermistors 10K sensors are used for the Ambient Air Temperature sensor the Coil Temperature sensor and Aux Heat Temperature sensor field supplied when necessary The sensor has a measurement error of less than 0 5 F 0 3 C between 36 F and 110 F 2 2 C and 43 C temperatures The control displays 10K sensor temperatures to 0 1 F or 0 1 C resolution Tab...

Page 49: ...49 NOTES ...

Page 50: ...50 NOTES ...

Page 51: ...51 NOTES ...

Page 52: ...Raypak Inc 2151 Eastman Avenue Oxnard CA 93030 805 278 5300 Fax 805 278 5468 Heat Pump Service 1 800 260 2758 Litho in U S A ...

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