Mueller Hydro-Guard 200 Series, Installation And Operation Manual

Page 1: ...CHILLER CONTROL MODEL 200 INSTALLATION AND OPERATION MANUAL Part No 9843143 Effective June 22 2000 Revised April 8 2002 REFRIGERATION PRODUCTS ...

Page 2: ... Electronic Temperature Control Programming 3 1 Power On Sequence of Operation 5 3 2 Error Messages 5 Figure 1 Temperature Control 5 3 3 Temperature Control Lock and Unlock Features 6 3 4 Self Test Procedure 6 3 5 Temperature Controller Programming 6 3 6 Direct Cool Mode 6 3 7 Setpoint and Differential Operation 7 Figure 2 Direct Cool Mode Schematic 7 3 8 Stage 1 S1 Setpoint Programming 8 3 9 Oper...

Page 3: ... are 24 volt to operate up to four stages of refrigeration It will also control the operation of a chiller circulation pump up to 5 hp a process circulation pump up to 5 hp and optional water level control and fill solenoid valve 1 3 Electrical Components All wiring must be performed in compliance with the National Electric Code NEC and local codes The control box contains fuses and circulation pu...

Page 4: ...mly attached to the pipe but caution should be used to not crush the sensor After attaching the sensor it must be insulated to protect it from reading ambient temperatures 2 5 Electrical Requirements and Field Wiring Instructions 208 240 60 3 Models 1 Connect a fused disconnect providing a 208 240 60 3 power supply to terminals L1 L2 and L3 in the electrical enclosure 2 Ensure that the primary con...

Page 5: ...connect the condensing unit control circuits as follows a Connect condensing unit number one to the control circuit S1 terminal numbers 2 and 6 b Connect condensing unit number two to the control circuit S2 terminal numbers 2 and 7 c Connect condensing unit number three to the control circuit S3 terminal numbers 2 and 8 d Connect condensing unit number four to the control circuit S4 terminal numbe...

Page 6: ...heat transfer through the evaporator and liquid slugging of the compressor If a flow switch is used it should be a normally open switch and installed in the chiller solution circulation loop Remove the jumper between terminals 4 and 5 in the electrical enclosure and wire the flow switch in series between terminals 4 and 5 Chiller Control Model 200 Installation and Operation Manual 4 Effective June...

Page 7: ...displayed may not be a true reading of the tank temperature if the circulation pump is not running 2 The chiller circulation pump is on Make sure the system has adequate solution to prevent the pump from running dry 3 The temperature controller can turn the condensing unit s on if the solution temperature is above the setpoint C When the selector switch is in the chiller process pump right positio...

Page 8: ... validate that the controller is in the locked position press and hold the key until the setpoint temperature is displayed If the display immediately reverts back to current sensor probe temperature when the key is released the controller is locked If the display shows the setpoint setting for 5 8 seconds after releasing the key the controller is not locked 3 4 Self Test Procedure A self test proc...

Page 9: ... stage providing a programmable offset value to energize each stage on temperature rise See the example and Figure 2 below EXAMPLE Instant Cooling Application Utilizing Propylene Glycol Solution Stage 1 S1 setpoint 34 Off at 34 F H1 differential 1 On at 35 F Stage 2 S2 setpoint 2 Off at 36 F H2 differential 1 On at 37 F Stage 3 S3 setpoint 3 Off at 37 F H3 differential 1 On at 38 F Stage 4 S4 setp...

Page 10: ...9 3 9 Operating Parameter Programming a With the temperature controller unlocked press and hold the key for 7 seconds until H1 is displayed b Press the key a second time to access the value or setting for H1 c Immediately press the or key until the desired value or setting is displayed d Press the key to retain the new setting in memory e Press the key again for the next operating parameter S2 H2 ...

Page 11: ... code Chiller Control Model 200 Installation and Operation Manual 9 Effective June 22 2000 Part No 9843143 Revised April 8 2002 Recommended Range 4d Direct Cooling Code Settings Adjustment Parameter Description S1 341 34 to 55 Setpoint Stage 1 H1 11 1 to 9 Differential stage 1 S2 21 1 to 40 Setpoint stage 2 differential to stage 1 H2 11 1 to 9 Differential stage 2 S3 31 1 to 40 Setpoint stage 3 di...

Page 12: ...SECTION 4 0 DIAGRAMS 4 1 Wiring Diagram Part No 9843161 Chiller Control Model 200 Installation and Operation Manual 10 Effective June 22 2000 Part No 9843143 Revised April 8 2002 ...

Page 13: ...4 2 Wiring Diagram Model 200 Control Box Part No 9001878 Attached Chiller Control Model 200 Installation and Operation Manual 11 Effective June 22 2000 Part No 9843143 Revised April 8 2002 ...

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Page 15: ...43162 TRANSFORMER 75VA 208 480 VAC PRIMARY 24 VAC SECONDARY 5A 507785 FUSE 1 AMP 600 VOLT BUSS FNQ R 1 230 VOLT MODELS 5B 9820107 FUSE 5 AMP 600 VOLT BUSS FNQ R 1 2 480 VOLT MODELS 6 9842325 SWITCH SELECTOR 3 POSITION 24 VAC WITH 1 NC 1 NO CONTACT 7A 9842757 OVERLOAD MOTOR STARTER MANUAL RESET 1 0 1 6 AMPS 7B 9842339 OVERLOAD MOTOR STARTER MANUAL RESET 1 6 2 5 AMPS 7C 9842342 OVERLOAD MOTOR STARTE...

Page 16: ...to the purchaser user if returned material is not found to be defective This warranty does not cover items such as mileage product loss cost of substitute storage facilities parts and labor charged by others or consumable items such as rubber goods glass etc The above will constitute the Company s total responsibility The above warranties will not apply in the event of abuse misuse negligence impr...

Page 17: ... Operation Manual 14 Effective June 22 2000 Part No 9843143 Revised April 8 2002 SECTION 7 0 INSTALLATION AND SERVICE NOTES Customer Name Dealer Name Address Address Telephone Telephone Chiller Control Model Serial No Date of Installation Notes ...

Page 18: ...pringfield Missouri 65801 0828 U S A Phone 417 831 3000 1 800 MUELLER Fax 1 888 446 8265 www muel com E mail refrigeration muel com International Inquiries Fax 417 831 6906 E mail international muel com 4 02 9843143 ...