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Nyle C185A Instruction Manual

Air source heat pump water heater
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For R513a units
IM-C185A-061424

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Summary of Contents for Nyle C185A

  • Page 1 For R513a units IM-C185A-061424...
  • Page 2 HeatWater.com | WaterService@nyle.com | (800) 777-6953 IM-C185A-061424...

  • Page 3: Table Of Contents

    Startup Procedure ..........34 Typical Water Piping Process ........18 Troubleshooting ............ 34 Single-pass with Swing in Series Piping ....19 Routine Maintenance ..........39 Multi-pass Piping ............20 Limited Warranty ........... 40 IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...

  • Page 4: Introduction

    Introduction Safety Information Thank you for your purchase of a C185A air source The proper installation, use and servicing of this com- heat pump water heater! With this purchase, you now mercial heat pump water heater is extremely import- own one of the most efficient and reliable large-vol- ant to your safety and the safety of others.

  • Page 5: Precautions

    IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...

  • Page 6: General Description

    All C185A, R513a heat pumps can Usage be ducted to the on-board high static blower fan dis-...

  • Page 7: Performance Specifications And Requirements

    Note: C-Series R513a heat pumps will suspend operation when ambient conditions drop below their stated minimums. Single-pass heat pumps may limit their outgoing water temperature in lower ambient conditions. See the Maximum LWT diagram for details. Expanded Performance Data Table 2: C185A Expanded Performance: (50° EWT, 140° LWT, 50% RH) Ambient Air Supply Heating...

  • Page 8: Electrical Specifications

    Rated Load Amps (RLA) Short Circuit Current Rating (SCCR) Internal Component Data Compressor Locked Rotor Amps (LRA) Compressor Horsepower (HP) Sound Pressure Data Table 4: C185A – Sound Pressure Data 1:1 Octave LAeq 31.5 Hz 63 Hz 125 Hz 250 Hz...

  • Page 9: Physical Specifications And Clearances

    (unpiped) condensate applications are not generally recommended. See “Water and Condensate Piping” section for more information about piped and free discharge condensate applications. Nyle recommends a minimum of 6" of bottom clearance to access the condensate drain pipe tapping. This could be reduced by pre-installing the condensate pipe connection, or, for some piping and/or attachment methods.
  • Page 10 Figure 3: Side by Side Units Clearances Air Flow 24" Air Flow 24" BACK Defrost Element BACK 24" RIGHT LEFT 24" (Note 2) RIGHT LEFT 24" Air Flow FRONT Air Flow FRONT 36" 36" HeatWater.com | WaterService@nyle.com | (800) 777-6953 IM-C185A-061424...

  • Page 11: Dimensions

    2 " 4 " BACK FRONT 8 " 8 " TYP 1" DUCT COLLAR DEPTH Refrigeration Service Panel Service Panel 8 " 2 " 2 " 35" 8 " 8 " LEFT RIGHT IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...

  • Page 12: Before Ordering Your Heat Pump

    Before Ordering Your Heat Pump F Be sure that qualified refrigeration technicians are available for installation troubleshooting sup- Nyle Water Heating Systems recommends following port and ongoing system maintenance. If this is in this pre-order checklist, to minimize the chances of...

  • Page 13: Unit Diagram And Key Components

    Unit Diagram and Key Components Figure 5: C185A Model IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...

  • Page 14: Heat Pump Installation

    F Ducting to or from remote locations, including in- sulation as necessary. F Control wiring for alarms, BMS interface, and ex- ternal accessories. Nyle recommends running a minimum of one 18/12 control wire and a CAT- 5e/6 wire to ensure that all likely accessories and control functions can be utilized.
  • Page 15 IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...
  • Page 16 Figure 9: C185A Mounting Rails Positions and Widths 8 " MIN. 8 " MIN. 35" 2 " 2 " 8 " MIN. 40" 2 " 2 " HeatWater.com | WaterService@nyle.com | (800) 777-6953 IM-C185A-061424...

  • Page 17: Water Quality

    Ensure that pipes are clean and protected from ble local codes and regulations. Where codes and guid- intrusion of dirt or other contaminants during the installation. ance from Nyle are in conflict, advise Nyle or your local Pressure Testing and Purging: manufacturer’s representative of the conflict.

  • Page 18: Piping Considerations

    Diagram 2 on page 19 Nyle recommends testing to 80-100 PSI or 1.25x and in Diagram 3 on page 20. the standing pressure of the system, whichever is higher, for a minimum of two continuous hours.

  • Page 19: Single-Pass With Swing In Series Piping

    Air venting is recommended at the high point of the hot water supply piping from the water heater. Use only air vents suitable for open systems. Ensure the air vent installed is appropriate for its ambient conditions. Expansion tank must have a direct pipe run with no opposing check valve to the swing tank in single -pass IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...

  • Page 20: Multi-Pass Piping

    11. If multiple tanks are used, a single temp sensor can pick any tank to trigger heating operation. However, the master control accessory can be used to add additional tank sensors, which is more ideal for multiple, multi-pass tanks. HeatWater.com | WaterService@nyle.com | (800) 777-6953 IM-C185A-061424...

  • Page 21: Condensate Piping

    Figure 10: Condensate Piping Detail CAUTION Vent above drain pan Nyle recommends all condensate lines be piped to a 1/4" per foot drain. Failure to control condensate can result in slip/fall minimum slope conditions, site erosion, water damage, and/or damage to the heat pump water heater itself;...

  • Page 22: Power Wiring

    Field Supplied Electricians must create their own entry into the Exterior Disconnects Main Power IN C185A heat pump. There are two points that require Field Installed Wiring creation of an access hole, both marked with “Knock Field Installed Wiring Figure 11.

  • Page 23: Control Wiring

    RS485 Port R1 Ethernet Port 1 Customer Terminal Block Customer Supplied Dry Contact for Run Enable Terminal Block Alarm Status Contacts Tank Temp Probe Defrost Contacts Tank Temp Probe 2 Run Signal Contact IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...

  • Page 24: Control Wiring Installation

    Master Control Panel, various accessories, making electrical connections. and service laptop connections, and will be necessary 2. Identify the control wire access point on the C185A: for future products and functionality. Roughing in a this is a pass-through on the rear panel, where the CAT-5 or CAT-6 cable at installation is recommended.

  • Page 25: Single-Pass Tank Sensors

    50% of available stages, and a sensor for Multi-pass systems require a cold trigger sensor low in the all stages to run. Nyle heat pumps require the use of tank to activate on incoming cold water temperature, but external controllers for staging, and provide a control- not at recirc return temperatures.

  • Page 26: Optional Ducting And Ventilation

    To Heat Pump Volume Volume Cold/Recirc In Cold/Recirc In that the C185A unit removes in real time, such as in large commercial mechanical rooms or server farms. Notes: 1. CT sensors mounted at a maximum of 1/5 of total tank height. CAUTION 2.
  • Page 27 Minimum area is the min. cross sectional area of ducts for typical velocities, and are not a substitute for formal duct sizing. Velocity targets vary for each project. 1200 FPM max for intake and 1600 FPM max for discharge used for reference. IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...

  • Page 28: Configuration

    Nyle C185A heat pumps come with a full color touch- as well as the additional safeties and sensors built into screen mounted on the front of the cabinet, under a the heat pump.

  • Page 29: Single-Pass Modes

    Purge Cut Out temperature is reached, or CAUTION Max Purge Time is reached, whichever comes first. Setting the C185A to target temps above 160 degree F Tank Mode Programming for Single-pass can shorten compressor life and void warranty.

  • Page 30: Remote Mode For Single-Pass

    7. At demand end, internal circulator will continue to Setting the C185A to target temps above 160 degree F run until Purge Cut Out temperature is reached, or can shorten compressor life and void warranty.

  • Page 31: Multi-Pass Modes

    Tank Mode Sequence of Operation for CAUTION Multi-pass 1. When the cold or warm tank sensors detect a tem- Setting the C185A to target temps above 160 degree F perature below their respective cut-ins, demand can shorten compressor life and void warranty. begins 2.

  • Page 32: Remote Mode Sequence Of Operation For Multi-Pass

    6. Demand ends when the demand condition is re- moved by the external control device. 7. At demand end, internal circulator will continue to run until Purge Cut Out temperature is reached, or Max Purge Time is reached, whichever comes first. HeatWater.com | WaterService@nyle.com | (800) 777-6953 IM-C185A-061424...

  • Page 33: Pre-Startup Checklist

    F Ducting, if present, is complete, insulated, and connected to terminal grilles/louvers. F Exterior louvers and connecting ductwork will lim- it moisture intrusion, and drain in or out for what moisture does intrude. IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...

  • Page 34: Startup Procedure

    Startup Procedure CAUTION Nyle Heat Pumps are to be started up by factory au- thorized commissioning agents ONLY. C-Series heat pumps must be on active power for at least 6 hours before pressing the “On” button to Startup dates are to be requested through your manu- enable operation.
  • Page 35 Error Log displays a record of alarm conditions that the heat pump has experienced. If alarms or problems occur, please use the follow- ing Troubleshooting tables to help guide the trouble- shooting response. IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...
  • Page 36 Ambient temperature is not too high. Inlet water temperature is not too high. High Pressure Refrigerant pressure is too high Wye strainer is clean. Refrigerant charge is not too high. High pressure sensor and wiring are good. HeatWater.com | WaterService@nyle.com | (800) 777-6953 IM-C185A-061424...
  • Page 37 Modbus Comm or failure PLC and BMS modules are operational Compressor oil level is good. Oil Pressure Compressor oil pressure is low Oil Pump is good. No evidence of oil around compressor base. IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...
  • Page 38 Specified sensor is wired and operational detected. Specified sensor is out of range or not detected. M Protection Compressor contactor not pulling in. Motor protection module wiring is good Motor protection module is free of alarms HeatWater.com | WaterService@nyle.com | (800) 777-6953 IM-C185A-061424...

  • Page 39: Routine Maintenance

    F Inspect and clear any louvers or grilles in at- tached ducting. F Isolate, inspect, and clean any wye strainers on the heat pump piping. F Inspect all attached piping and ducting for water leaks and/or uncontrolled condensation. IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...

  • Page 40: Limited Warranty

    Limited Warranty (6) sized in accordance with proper sizing techniques for commercial heat pump water Nyle Water Heating Systems, the warrantor, extends heaters; the following LIMITED WARRANTY to the original own- er of this commercial heat pump water heater subject...
  • Page 41 Service Log Issue Description Date Servicer IM-C185A-061424 HeatWater.com | WaterService@nyle.com | (800) 777-6953...
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  • Page 44 690 Maine Ave Bangor, ME 04401 1-800-777-6953 Nyle Water Heating Systems engages in continuous improvement. Sequences, features and capabilities can change without notice at any time. Refer to most current documentation prior to installation or commissioning of all equipment.

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