Controls User Manual
Contents
1. oe Vortex Pis Controls User Manual Water to Water Heat Pump W2W series with electronic controller Basic Version Gy Vortexsss W2W Heat Pump Controller Basic Table of Contents OT OMT BASICS src rR are E E seas E EE seevr ev newer 3 Controller KO OA oreren iair nro n Er e Er ra nr aa o e 4 J ER MODE ree E E EE E E E E E E eee 4 ADMIN MODE orris E 4 Heat Pump Operation cccccceecccceeceeceeceeseeeeseeeessecesseueesseeeesseeesseeeesaeeeesaees 4 IC SUID CLIC E E E A E E EE 9 FEE ZORO O ereere EEEE r i 5 Alarm Conditions and Lockout soe sence tuocceccdesedueccecsdceutuonsucutusucuendesuezsususesesutesesece 5 CONROE AN HNO DETAI areren EEEE E EEEE REEE EO 6 Controls Wiring Diagram Heat Pump Error Bookmark not defined Control Parameters User and Admin Mode cccceeeeeeeeeeeeeeeeeeeeeeeeeees 8 Page 2 of 8 rev 1403 Gy Vortex sss W2W Heat Pump Controller Basic This document describes usage and operation of the controller for the Vortex Water to Water W2W heat pump It is recommended that the installing contractor read through this short manual in order to become familiar with the correct system setup procedure and to take advantage of the various features available The basic program uses standard Y and O inputs to operate the heat pump Vortex also sells heat pumps with advanced control features which measure storage tanks directly and can utilize outdoor reset to adjust water te2. O LAST_ERR D _ Displays last fault text o LAST RST 0 Off 1 On_ Manual reset of last fault o DefaultsettingisO SRC_TMP F D Source Ground heat exchanger outlet water temperature Be LD TMP F D Load Tank heat exchanger outlet water temperature Be DSP_TMP F D Desuperheater water temperature OP C CSCSCSCSCSCSCidC DSP_MAX F Maximum allowed desuperheater water temperature Default setting is 140 DSP_DB F _ Thermostat deadband for desuperheater pump Default setting is 100 SRCMin F Source HX outlet minimum allowed water temperature Default setting is 34 _ LDMin h F _ Load HX outlet minimum allowed water temperature Default setting is 34 OFF MIN m __ Time in minutes between compressor cycles Default settingis5 Cycles D Counts the of compressor on cycles lifetime Runhrs h D Counts number of hours of compressor run time do COMP_AUTO 0 Off 1 On Compressor in auto mode Turn off to lock out compressor for testing W2W Basic D Programname O Defaultsettingisi Modbus Modbus address o Defaultsettingis 123 Note D in the set column indicates this parameter is for display only and cannot be modified using the controller Rev_Q06 Page 8 of 8
3. e contact from relay alarm Chigh or low pressure cutoff description not used not used not used output to desuperheater pump relay output to compressor contactor signal to compressor gend stage output to reversing valve Page 6 of 8 rev 1403 G Vortexsss W2W Heat Pump Controller Basic Controls Wiring Diagram Single stage with optional desuperheater Ly gt desuperPeoter pnp L fFoctory wreg SOURCE GROUND Low Press Switch High Press Switch LOAD TANK DESUPERHEATER Page 7 of 8 rev 1403 W2W Heat Pump Controller Basic Control Parameters User and Admin Mode Table 3 User Mode Parameters Linet i Line2_ s Set Description o Noes Status Displays status text 0 G O LAST_ERR D Displays last fault text 0 SRC _TMP F D Source Ground heat exchanger outlet water temperature re LD TMP F ID Load Tank heat exchanger outlet water temperature ee Cycles D __ Counts the of compressor on cycles lifetime Runhrs D Counts number of hours of compressor run time fe W2W Basic D Programname si Defautsettingisi Note D in the set column indicates this parameter is for display only and cannot be modified using the controller Table 4 Admin Mode Parameters Linet Line2 Set Description o Nes ALM RST 0 Off 1 On_ Manual reset of alarm counter Defaultsettingis
4. ed to be changed to match that of the true freezing point of the solution The parameters below are used to modify freeze protection settings LD Min amp SRC Min default is 34 F the minimum allowable load and source leaving water temperatures If the measured temperature drops below this setting the compressor will be shut off This value should be set slightly above the freeze point of the water or antifreeze solution used in the source load loop Alarm Conditions and Lockout There are a number of possible operating conditions which can result in a system alarm causing the call to the compressor to be interrupted When an alarm occurs a short status message will be displayed as outlined in Table 1 on page 3 of this manual If three alarm conditions occur within 24 hours of one another the system controls will lock out and no longer allow the heat pump to run If this occurs there may be an issue with the heat pump and so a qualified technician should be contacted for service LOCK OUT The system has locked out due to a recurring alarm condition Contact a qualified technician for service Qualified technicians may reset alarms and lockouts using the parameters below LAST_TXT will display the last alarm message that occurred To reset this set LAST_RST to ON for a few seconds and then set back to OFF It is important to write this down before resetting in order to help with system troubleshooting ALM_CTR w
5. eters may be accessed By entering admin mode additional parameters may be made available Please exercise caution while in admin mode as these settings are meant to be accessed by the experienced user or installing contractor A description of each of the modes is found below USER MODE This is the basic display and operating mode in which only a limited selection of parameters may be accessed and modified Refer to Table 3 for description of each item displayed ADMIN MODE This is the advanced display and configuration mode It is intended only for the properly trained contractor To enter admin mode press any button to illuminate the display backlight then press and hold the two option buttons at the same time user will be displayed at first hold until admin is displayed You can now scroll through the display items by using the lower two option buttons and adjust certain values using the upper two setting buttons To return the control to user mode simply wait a few minutes or press and hold both option buttons Use Table 4 as a quick reference on the items available in this mode Detailed descriptions on important parameters are found below Heat Pump Operation There following parameters may be useful in system commissioning and troubleshooting OFF_MIN default is 5 minutes The anti short cycle delay setting The counter will begin at the end of a heating or cooling call or upon initial uni
6. ill count the number of alarm conditions encountered over the last 24 hours lf the alarm counter reaches three the system will be locked out To reset the alarm Page 5 of 8 rev 1403 Oy Vortexs W2W Heat Pump Controller Basic counter set ALM_RST to ON for a few seconds and then set back to OFF Compressor should then be allowed to come back on once the delay period has passed Controller Wiring Detail The diagram below shows the wire connections at the back of the heat pump controller Depending on the model of W2W heat pump some connections may not be used To access the rear of the controller use a 1 5 mm hex key to adjust the small set screws at the bottom left and right of the controller Adjust the sets screws in turn clockwise in order to release the controller from the mounting bracket block TO REVERSING VALVE violet SECOND STAGE COMPRESSOR brown HP LP CONTACTOR grey DESUP PUMP RELAY TRANSFORMER e4VAC red gt GROUND SCREW green BELAY ORT Eo brown Corange RELAY IN yellow DESUPERHEATER THERM LOAD THERMISTER SOURCE THERMISTER label name l SRC_TMP 2 LD_TMP 3 DSP_TMP 4 2 Y_IN 6 D_IN 7 ALM_IN OUTPUTS label name ADL Age K1 Ke DSP_OUT K3 Y1_OUT K4 Ye_OUT KS 0_OUT description source outlet temperature load outlet temperature desuperheater temperature hot used call for compressor close contact from relay call for reversing valve clos
7. mepratures Controller Basics The controller operates the heat pump compressor refrigerant valves and system pumps Through its LCD display and keypad important system parameters may be configured and operating conditions may be monitored When the controller keypad has not been pressed for a few minutes the backlight will turn off and the display may go blank Simply press any one of the buttons to wake up the controller By default the controller will display a short message describing the operating status of the system Table 1 provides a list of the different possible status messages and their meaning There are also a number of small icons that may appear around the edges of the display according to the current operating status Table 2 below gives an explanation of the different icons Table 1 status messages Message READY No thermostat calls but system is ready So LOCK OUT Table 2 display icons Compressor call at Y1_IN Snowflake Cooling signal at O_IN Desuperheater pump on Page 3 of 8 rev 1403 Gy Vortex sss W2W Heat Pump Controller Basic Controller Keypad By using the option and setting keys different parameters and their settings may be displayed and modified Use the option key to scroll through the available parameters and use the setting key to modify the parameter s current setting if available By default the control will remain in user mode in which a limited selection of param
8. t power up COMP_AUTO default ON Automatic compressor mode set this to OFF to prevent the compressor from running This may be useful in basic system troubleshooting Be sure to set back to ON when done to allow the system to operate normally Cycles Counts the number of heating amp cooling cycles that have occurred This may be useful in determining the operation history of a heat pump Run hrs Counts the total elapsed time that the heat pump has run in hours This may be useful in determining the operation history of a heat pump SRC_TMP The measured source side leaving water temperature in degrees Fahrenheit Page 4 of 8 rev 1403 Gy Vortexses W2W Heat Pump Controller Basic LD _ TMP The measured load side leaving water temperature in degrees Fahrenheit Desuperheater For W2W heat pumps equipped with an optional desuperheater hot water booster the following parameters apply DSP_TMP The measured desuperheater temperature in degrees Fahrenheit DSP_MAX default is 140 F Maximum allowable desuperheater temperature When the measured temperature exceeds this setting the desuperheater pump will not be brought on Freeze Protection The W2W heat pump controller measures the source and load side leaving water temperatures to help prevent the system from freezing By default the freeze protection level is set based on water If an antifreeze solution is used these levels may ne
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