Related Manuals for Zehnder Rittling HP Series
Summary of Contents for Zehnder Rittling HP Series
- Page 1 Hydronic Heating Fan Coils Radiant ceiling systems Water Source Heat Pumps Horizontal Heat Pump Installation, Operation and Maintenance...
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Page 2: Table Of Contents
Table of Contents Model nomenclature General information General data Horizontal installation Piping installation Water loop applications Ground loop applications Ground water applications Water quality standards Electrical: line voltage Electrical: low voltage wiring Electrical: power wiring Blower performance data Wiring diagrams Microprocessor control system Dip switch settings and operation Standard 24VAC sequence of operation... -
Page 3: Model Nomenclature
Nomenclature HP series 1, 2 5, 6, 7 15, 16 19, 20 – Unit type Special option codes HP = Heat Pump AA = Standard Model Placeholder S = Single State Revision level Cabinet configuration A = Rev. 1 H = Horizontal... -
Page 4: General Information
General Inspection: Upon receipt of the equipment, carefully check To avoid the release of information the shipment against the bill refrigerant into the atmosphere, of lading. Make sure all units the refrigerant circuit of this have been received. Inspect unit must be serviced only by the packaging of each unit and properly trained technicians who inspect each unit for damage. - Page 5 General Pre-installation: Installation, operation and maintenance information All three phase scroll instructions are provided with compressors must have direction each pallet. Horizontal equipment of rotation verified at start- is designed for installation up. Verification is achieved by above false ceiling or in a ceiling checking compressor amp draw.
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Page 6: General Data
Unit physical data English units Size Compressor and refrigerant data Compressor Rotary Rotary Rotary Rotary Scroll Scroll Scroll Scroll Scroll Scroll Scroll (1 each) Refrigerant charge 38.9 40.6 48.8 51.2 65.4 86.6 91.9 121.9 127.2 141.3 R410A (oz) Motor and blower data Blower wheel size 7×7 7×7... - Page 7 Unit physical data Metric (S.I.) units Size Compressor and refrigerant data Compressor Rotary Rotary Rotary Rotary Scroll Scroll Scroll Scroll Scroll Scroll Scroll (1 each) Factory refrigerant 1.10 1.15 1.38 1.45 1.86 2.16 2.46 2.61 3.46 3.61 4.01 charge R410A (kg) Motor and blower data Blower wheel size 17.8x17.8 17.8x17.8 17.8x17.8 17.8x17.8...
- Page 8 Dimensions and data Front Front Right return Left return Control box access panel 7/8" (2.2) OD condensate Side Side discharge discharge discharge discharge Power Compressor supply Loop out access panel 7/8" (2.2) OD Front view Compressor access panel condensate Loop in Low voltage knockout Left return Compressor access panel...
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Page 9: Horizontal Installation
100% outside air). or installation of the unit itself. Consideration should be given to Zehnder Rittling recommends access for easy removal of the at least 24" clearance around filter and service access panels. all service access panels... - Page 10 Threaded rod ceiling). A filter track is included clear of the floor slab above (by others) on Zehnder Rittling Heat Pumps and support the unit by the for the purposes of holding the mounting bracket/U-channel rail filter and providing a flange assemblies only.
- Page 11 Horizontal Field conversion of Reinstall service access panel. air discharge installation Reinstall screws (note: the location for some screws will Remove Water Overview: Horizontal units can have changed). 2 screws connection end be field converted between Return air Conversion should resemble side (straight) and end (back) Figure 5 or Figure 6 for left or discharge using the instructions...
- Page 12 Provide a means to flush or blow out the condensate line. Do not Zehnder Rittling condensate install units with a common trap connections are stainless steel. and/or vent. Soldering or brazing of fittings is difficult and mechanical...
- Page 13 Horizontal Duct system installation At least one 90° elbow should be included in the supply duct to installation reduce air noise. Proper duct sizing and design is critical to the performance of If the unit is connected to the unit. The duct system should existing ductwork, a previous be designed to allow adequate check should have been made...
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Page 14: Piping Installation
37° female JIC Select the proper hose length swivel crimp on fitting assemblies are available for to ensure slack between use with Zehnder Rittling units. connection points. Overall length Similar hoses can be obtained Do not exceed the minimum (without adaptor) from alternate suppliers. -
Page 15: Water Loop Applications
40-50 gpm per ton (2.9 and 4.5 l/m per kW) tendency to leak over time. 20-40 of cooling capacity. Zehnder Rittling recommends 3.3 gpm per ton (4.3 Piping installation Low water temperature l/m per kW) for most applications of... -
Page 16: Ground Loop Applications
Low water temperature codes and regulations. antifreeze is required. Alcohols cutout setting and glycols are commonly used as Zehnder Rittling’s heat pump antifreeze; however your local sales controller includes a user representative should be consulted configurable switch (DIP switch 2... -
Page 17: Ground Water Applications
Ground water Open loop ground Water quality standards Table 6 should be consulted applications for water quality requirements. Typical open loop piping is shown Scaling potential should be in Figure 11. Shut off valves assessed using the pH/calcium should be included for ease of hardness method. - Page 18 Water coil low temperature limit The preferred method of control setting applications requires a flow control device Zehnder Rittling’s heat pump mounted on the outlet of the controller includes a user water control valve. The device configurable switch (DIP switch 2...
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Page 19: Water Quality Standards
<4 GPM per ton to minimize transfer, increased pressure drop, potential erosion Three categories of issues can reduced flow and corrosion. The Zehnder Rittling Water arise from use of water including: Quality Table provides water Scale formation: resulting System water should be evaluated... -
Page 20: Electrical: Line Voltage
Electrical: Line voltage Table 7: HPSH series electrical data, PSC motors Compressor Fan motor Max. Rated Voltage Total Min. Voltage Disconnect fuse/ Model voltage min./ unit circuit Power code Size HACR Type (V/Hz/Ph) max. amps (HP) size 208-230/60/1 187/253 20.0 1/12 15.0 208-230/60/1 187/253... -
Page 21: Electrical: Low Voltage Wiring
Electrical: Low Electrical: Power wiring voltage wiring Three phase wiring is similar except that all four power wires Table 8: Transformer loading To avoid possible injury or death are directly connected to the due to electrical shock, open the Component contactor. -
Page 22: Blower Performance Data
Blower performance data Table 9: Standard unit, PSC Motor Airflow (CFM) at external static pressure (in. wg) Rated Unit Speed airflow 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95 High High High... -
Page 23: Wiring Diagrams
Wiring diagram 208-230V/60/1 Blower speed Unit size Brown Black Blue High High High High High High High High Black Unit High Blue Capacitor Blue Power Supply Yellow 208-230V/60HZ/1PH Compressor High High Note 4 Optional Disconnect Blower Motor Switch White Orange See Note 6 Transformer Blue... - Page 24 Wiring diagram 208-230V/60/1 ECM Wire colors Discrete speeds Power leads 1st spd 2nd spd Comm 3/4 HP Blue Brown Black White 1/4 HP Purple White Blue Black Black Unit Blue Capacitor Blue Power Supply Yellow 208-230V /60HZ/1PH Compressor Note 4 Optional Disconnect Blower...
- Page 25 Wiring diagram 208-230V/60Hz/3 Blower speed Unit size Brown Black Blue High High High High High High High High High Black Unit High Capacitor Power Supply Blue 208-230v/3ph Yellow Compressor High 277v/1ph Motor Note 4 Optional Blower Disconnect Motor Switch White Orange Transformer Blue...
- Page 26 Wiring diagram 208-230V/60Hz/3 ECM Wire colors Discrete speeds Power leads 1st spd 2nd spd Comm 3/4 HP Blue Brown Black White 1/4 HP Purple White Blue Black Black Unit Power Supply Capacitor Blue 208-230v/3ph Yellow Compressor Note 4 Optional Blower Disconnect Motor Switch...
- Page 27 Wiring diagram 460V/60Hz/3 Blower speed Unit size Brown Black Blue High High High High High High High High High Black Unit High Power Supply Capacitor Blue Yellow 460V/60HZ/3PH Compressor High 277v/1ph Motor Note 4 Optional Blower Disconnect Motor Switch White Orange 480V Transformer...
- Page 28 Wiring diagram 460V/60Hz/3 ECM Wire colors Discrete speeds Power leads 1st spd 2nd spd Comm 3/4 HP Blue Brown Black White 1/4 HP Purple White Blue Black Black Unit Capacitor Power Supply Blue Yellow 460V/60HZ/3PH Compressor Note 4 Optional Blower Disconnect Motor Switch...
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Page 29: Microprocessor Control System
Microprocessor control system Zehnder Rittling Horizontal Heat Pumps feature a Emergency shutdown contacts microprocessor-based control system. The control Relay to operate an external damper system is specifically designed to protect the unit Ability to automatically change fan speed from against abnormal building system conditions including... -
Page 30: Dip Switch Settings And Operation
Dip switch settings Dip switch 3 Dip switch 1 Tstat-Comm=Off Test Mode=Off and operation Tstat-24VAC=On Normal Mode=On Thermostat selection: Dip Test mode: Test mode is used switch 3 is used to select to speed-up the operation the type of thermostat that sequence of the unit, therefore will be used to control the creating a more timely... -
Page 31: Standard 24Vac Sequence Of Operation
Standard 24VAC sequence of operation Random start delay be valid the reversing valve will energize/de-energize after 5 seconds. The microprocessor will then verify When the unit is first powered “on” the control that the anti-short cycling delay has been satisfied. microprocessor will generate a random number Once the anti-short cycling delay has been satisfied to determine the start delay of the compressor... -
Page 32: Communicating Thermostat
Communicating thermostat Failure code display area Temperature Wiring harness adjustment provided with communicating thermostat On/off power button PCB inside electrical box of cabinet Dip switch positions for proper communicating thermostat operation Switch Description On/off power Fan: Position button high/low Varies, depends on system Temperature temperatures adjustment... - Page 33 Communicating thermostat operating instructions Power on/off “time +” or “time -” button and hold for 6 seconds and the timing will change to the hour. To select the day of This button will switch the unit on and off. In power off the week, push the “day”...
- Page 34 Communicating thermostat operating instructions Set system parameters Push the “cancel” and “sleep” buttons simultaneously Temp. Time area area and hold for three seconds to set the system parameters. A chime will sound and “0- --” will be Low voltage lockout lower limit (16-30V); 16V as default. Use temperature “-”...
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Page 35: Unit Starting And Operating Conditions
Unit starting and Operating limits When any one of these factors is at minimum or operating conditions maximum levels, the other two Environment: Units are factors should be at normal designed for indoor installation levels to ensure proper unit only. Never install units in areas operation. -
Page 36: Piping System Cleaning And Flushing
Test the system pH with litmus Verify that all strainers are paper. The system water in place (Zehnder Rittling pH should be in the range recommends a strainer with indicated in Table 6. Add a #20 stainless steel wire chemicals, as appropriate to mesh). -
Page 37: Unit And System Checkout
Unit and system checkout Standby pumps: Verify that the standby pump is properly To avoid possible damage to a Fan wheel blades are sharp. installed and in operating plastic (PVC) piping system, do condition. not allow temperatures to exceed 110 ºF (43 ºC). Condensate line: Verify that System controls: Verify that condensate line is open and... -
Page 38: Unit Start-Up Procedure
Unit start-up Turn on line power to all is correct by measuring heat pumps. See controls pressure drop through the heat procedure description for details. exchanger. Turn the thermostat fan position to “ON.” Blower Units have a 3-5 minute time should start. - Page 39 When testing is complete, set system to maintain desired comfort level. Be certain to fill out and forward all warranty registration papers to Zehnder Rittling. Start-up procedure...
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Page 40: Preventive Maintenance
Preventive Water coil maintenance content, it is best to establish a periodic maintenance schedule maintenance with the owner so the water coil can be checked regularly. Electrical shock can cause Dirty installations are typically personal injury or death. When the result of deterioration of installing or servicing system, iron or galvanized piping or always turn off main power to... - Page 41 Preventive Condensate drain Air coil In areas where airborne bacteria The air coil must be cleaned to maintenance may produce a “slimy” substance obtain maximum performance. in the drain pan, it may be Check once a year under normal necessary to treat the drain pan operating conditions and, if dirty, chemically with an algaecide brush or vacuum clean.
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Page 42: Troubleshooting
Troubleshooting Table 13 PCB System Error Codes (Green LEDs) System Warning = FLASHING Error Fault Lock-out = STEADY Code Potential Causes Description (COM T Stat) Low air flow (heating), low water flow (cooling) Blower fan inoperable (heat mode) Dirty air filter (heat mode) Airflow bypassing air coil (heat mode) Return air too hot (heat mode) Air in risers (cool mode) -
Page 43: Lockout Modes
Lockout modes Over/under voltage protection Note: If the microprocessor board is flashing a system warning and the unit is locked out and not running If the unit control voltage is 18VAC>voltage>30VAC the lockout can be cleared from the microprocessor the unit will shut down all inputs immediately. Once by a momentary shut down of incoming line voltage the voltage has reached acceptable levels the unit (208VAC, 230VAC or 277 VAC). -
Page 44: Start-Up Log
Start-up log Complete the unit and system checkout, follow the IOM unit start-up procedures and chronicle the unit information, temperatures and pressures during start-up. Keep this log for future reference. Date (MM/YY) Sales order no. Job name Unit location in building Cabinet model no. -
Page 45: Troubleshooting Worksheet
Note: All Zehnder Rittling Water Source Heat Pumps are pre-charged and factory run tested. The R410A refrigerant charge used on all unit chassis models is weighed into exact amounts, refrigeration gauges should only be attached as a last resort. Failure to replace lost charge may result in loss of capacity/ efficiency and equipment life. -
Page 46: Warranty
Zehnder Rittling, the purchaser shall return the defective good(s) to the factory for inspection with freight prepaid. If inspection shows the goods to be defective, Zehnder Rittling will at its discretion repair or replace the said item(s). Defects arising from damage due to shipment, improper installation, negligence or misuse by others are not covered by this warranty. - Page 47 Always the best climate for SMART IDEAS...
- Page 48 Zehnder Rittling · 100 Rittling Boulevard · Buffalo, NY USA 14220 T 844-934-6337 (844-ZEHNDER) · F 716-827-6523 sales@zehnder-rittling.com · www.zehnder-rittling.com...
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