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Instruction Manual Nyle Geyser CWM Modular Water Source Heat Pump Water Heaters MODEL C270WM Series INSTALLATION - OPERATION - SERVICE MAINTENANCE - LIMITED WARRANTY PLACE THESE INSTRUCTIONS ADJACENT TO HEAT PUMP AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
Table of Contents Electrical Connections............21 Condensed Unit Report................4 Wiring Diagrams...............5 Correct Voltage & Phase.................21 Power Wiring Diagram................5 Branch Circuit Disconnect Switch............21 Water Connections..............21 Output Wiring Diagram................6 Input Wiring Diagram..................7 Installation Instructions................21 Safe Installation, Use & Service..........8 Single Tank Configuration..............22 General Safety Information.............9 Multiple Tank Configuration..............22 Precautions................9 Standard Tank Thermostat..............22...
Unit Report Date: Basic Information Company Name: Rep. Firm (If Applicable): Unit Model #: Serial #: Power Source: Controls: Electrical Data Transformer Size: Fuse/Breaker Size: Compressor: Compressor Time Delay: Blower: Fans: Refrigeration Equipment Data Thermal Expansion Valve Part #: Manufacturer: Size: Solenoid Valve Part #:...
SAFE INSTALLATION, USE AND SERVICE The proper installation, use and servicing of this commercial heat pump water heater is extremely important to your safety and the safety of others. Many safety-related messages and instructions have been provided in this manual and on your own heat pump water heater to warn you and others of a potential injury hazard.
GENERAL SAFETY INFORMATION PRECAUTIONS GROUNDING INSTRUCTIONS DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN This heat pump water heater must be grounded in accordance UNDER WATER. Immediately call a qualified service agency to with the National Electrical Code and/or local codes. These must inspect the appliance and to make a determination on what steps be followed in all cases.
INTRODUCTION Thank You for purchasing this heat pump water heater. Properly Detailed installation diagrams are in this manual. These installed and maintained, it should give you years of trouble free diagrams will serve to provide the installer with a reference service.
SOURCE WATER TEMPERATURE RANGE 8. Ensure the power supply voltage and phase at the job site matches the power requirements on the HPWH rating label The entering source water temperature operating range for before installation begins. Energizing the HPWH with the the HPWH is 40°F to 100°F (4°C to 38°C).
FEATURES AND COMPONENTS PRODUCT ILLUSTRATIONS Figure 1 CONDENSER EVAPORATOR (HEAT EXCHANGER) (HEAT EXCHANGER) ACCUMULATOR (WATER TO REFRIGERANT) (REFRIGERANT TO POTABLE WATER) THERMOSTATIC EXPANSION VALVE (TXV) COMPRESSOR SOURCE EVAPORATOR COIL WATER OUTLET (HEAT EXCHANGER) (AIR TO REFRIGERANT) CONTROL HEATED PANEL SOURCE WATER OUTLET WATER INLET BLOWER...
Dimensions C270WM ROUGH IN DIMENSIONS 5'-11 2 " 3'-0" WATER CONNECTIONS SERVICE AREA 2 " ELECTRICAL SERVICE DOOR 28" 8 " 71” FRONT 8 " 28" REFRIGERATION SERVICE DOOR 2 " 2 " Figure 2 PERFORMANCE SPECIFICATIONS TABLE 1 PERFORMANCE DIMENSIONS SOURCE WATER...
INSTALLATION REQUIREMENTS Read all installation requirements in this manual before installation begins. The installation must conform to these instructions and all local and national code authority having jurisdiction. Costs to diagnose, perform service and repair damage caused by installation errors are not covered under the limited warranty. LOCATING THE WATER HEATER Costs to correct installation errors are not covered under the limited warranty.
ELECTRICAL REQUIREMENTS CAUTION CLEARANCES CORRECT POWER SUPPLY! To ensure optimal performance a minimum of 36 inches clearance is required from the front of the HPWH unit and any wall • Ensure the power supply at the job site matches the obstruction.
MINIMUM CIRCUIT AMPACITY & MAXIMUM FUSE SIZE Table 2 on page 13 provides the MCA (Minimum Circuit Ampacity) and MFS (Maximum Fuse Size). Use MCA to select the minimum field wires size to power the unit and MFS to select the maximum fuse size for over current protection as follows: Electrical Shock Hazard •...
WATER PIPING CLOSED WATER SYSTEMS Read all installation requirements in this manual before Water supply systems may, because of code requirements installation begins. or such conditions as high line pressure, among others, have installed devices such as pressure reducing valves, check The water piping installation must conform to these instructions valves, and back flow preventers.
TABLE 5 connected to the storage tank. If more than one water heating appliance is connected to the storage tank the aggregate total Time to Produce 2nd & 3rd Water Temperature of all heating input ratings of all connected appliances must be Degree Burns on Adult Skin factored when choosing a T&P valve for the storage tank.
Potentially harmful fumes and vapors could be introduced into occupied spaces. See Unit Placement on page 18. STORAGE & HANDLING SPREADER HEAVY OBJECT! All Heat Pump Water Heaters (HPWHs) covered by this manual are beyond the safe lifting weight for one person. Use SIDE proper conveyance equipment to move the unit for storage or during installation.
INSTALLATION REQUIRED ABILITY UNIT PLACEMENT Installation and service of the HPWH unit requires ability Whether replacing existing water heating equipment or installing equivalent to that of a qualified agency in the field involved. the HPWH in new construction, the following critical points must Plumbing, ducting electrical...
ELECTRICAL CONNECTIONS CAUTION WATER CONNECTIONS CORRECT POWER SUPPLY! • Ensure the power supply at the job site matches the voltage and phase listed on the HPWH rating label before connecting power to the HPWH unit. Water piping must be installed in accordance with the instructions •...
15. All components in the hot water supply system must be Purge Valve or T&P adequately sized to meet peak water flow requirement (purge air from system) 16. When the HPWH unit is installed above the storage tank install a Tee fitting at a high point in the outlet water line leaving the unit.
TEMPERATURE SENSOR INSTALLATION The HPWH unit is shipped from the factory with a Digital Tank Thermostat that includes a Temperature Sensor: Breathing Hazard - Carbon Monoxide Gas 1. Secure the Temperature Sensor inside a Sensor or Thermal Do not duct air from a garage or other Well .
INSTALLATION CHECKLIST The list below represents some of the most critical installation requirements that, when overlooked, often result in operational 15. Connect building recirculation loop piping to the backup problems, down time and needless parts replacement. This water heater/storage inlet on multi tank preheat piping is not a complete list.
PRE-STARTUP CHECKLIST Before applying power, check all electrical connections. Tighten if necessary. 2. Verify electrical installation. Power requirements and branch circuit disconnecting means match equipment nameplate specifications. 3. Make sure the hydronic system is flushed and purged of air. Remove and clean any strainers or filters if necessary.
3 Phase Startup Procedures Make sure the disconnect is off and confirm there is no power on the distribution block on the • electrical panel. Pull Compressor fuses. • Trip the blower/fan motor starter. • Turn power on. Check and make sure the power at the distribution block is the same as the •...
Initial Start-Up CAUTION OIL DILUTION! Bearing malfunction! It is important to ensure that new compressors are not subjected to liquid abuse. Turn the crankcase heater on 6 hours before starting the compressor. CAUTION High discharge pressure operation! Compressor damage! Do not use compressor to test opening set point of high-pressure cut- out.
START UP This start-up refers to several tools and test instruments needed flow is decreased the temperature rise will increase and as to complete the procedure. See Required Tools and Materials water flow is increased the temperature rise will decrease. on page 18.
PROGRAMMABLE LOGIC CONTROLS PLC CONTROLLER TEMPERATURE & SETPOINTS Your Geyser C-Series may be equipped with a To view and adjust the temperature setpoint, follow Programmable Logic Controller (PLC) and Human- these steps. Machine Interface (HMI) for controlling the water heating process. Sensors within the system provide View the HMI mounted on the electrical panel door.
INFO SCREEN SETUP SCREEN “START”: Starts heat pump “High Temp”: indicates current user-selected high water temperature setpoint “STOP”: Stops heat pump “Time/Date”: press to set time and date on control “Low Pressure”: indicates current pressure on low screen: side of refrigeration system “High Pressure”: indicates current pressure on high side of refrigeration system “Oil Pressure”: indicates status of compressor oil...
“LOW TEMP”: GREEN indicates that the water ALARM SCREEN temperature leaving the evaporator is above the shutoff value. RED indicates that the water temperature leaving the evaporator is below the shutoff value. “OVER TEMP”: GREEN indicates that the water temperature leaving the condenser is below the shutoff value.
MAINTENANCE AND SERVICE CLEANING INTERNAL INSULATION BRAZE PLATE CLEANING INSTRUCTIONS Inspect the internal insulation on a yearly basis for any microbial In some applications the heat exchanger may be subjected to severe fluid conditions, including high temperture hard water growth. The insulation never has to be cleaned unless microbial conditions, causing accelerated scaling and corrosion rates, and growth is detected.
TROUBLESHOOTING PROBLEM POSSIBLE CAUSES CORRECTIONS 1. Sheet metal fasteners are loose. Tighten fasteners. 2. Operating vibration transferring floor Heat pump is too noisy. Place vibration dampeners underneath unit. building structure. 1. Tubing, valves, or fittings are leaking. Repair leaks as necessary. Shim unit to level.
CHECKING REFRIGERANT CHARGE Servicing of the refrigeration circuit must only be performed by agencies or individuals possessing Type II or Universal certification as defined in Section 608 of the Clean Air Act. See TABLE 9 Qualifications on page 8. This HPWH unit is factory charged with 134a refrigerant. See the MODEL FACTORY CHARGE R134A rating label on the HPWH unit and Table 9 for refrigerant charge...
LIMITED WARRANTY COMMERCIAL HEAT PUMP WATER HEATERS Nyle Systems, the warrantor, extends the following LIMITED WARRANTY to the original owner of this commercial heat pump water heater subject to the terms, conditions and disclaimers stated below: 1. COMPRESSOR If the 5-Year Extended Compressor Warranty is purchased, and if within FIVE (5) years after delivery of this heat pump water heater the compressor shall prove, upon examination by the warrantor, to be defective, the warrantor will provide a replacement compressor.
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Fill in the following for your own reference. Keep it. Registration is not a condition of warranty. The model and serial number are found on the heater’s rating label. Model No. Serial No. Date Installed Dealer’s Name Dealer’s Address Phone No. City and State Nyle Systems, LLC 12 Stevens Road Brewer, Maine 04412 1-800-777-6953 Sales: Ext 216 Service : Ext 208...
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