Johnson Controls RC Series Engineering Manual
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Johnson Controls RC Series Engineering Manual

Geothermal/water source heat pump
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RC Series
CONSOLE
Geothermal/Water Source Heat Pump
• R-410A Refrigerant
• 0.75-1.5 Ton Single Speed
Design Features
Factory Options
Accessories
Dimensional Data
Physical Data
Performance Data
Engineering Guide Specifi cations
Form: 146.04-EG1 (0317)
Supercedes: 146.00-EG4 (0515)

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  • Page 1 RC Series CONSOLE Geothermal/Water Source Heat Pump • R-410A Refrigerant • 0.75-1.5 Ton Single Speed Design Features Factory Options Accessories Dimensional Data Physical Data Performance Data Engineering Guide Specifi cations Form: 146.04-EG1 (0317) Supercedes: 146.00-EG4 (0515)

  • Page 3: Table Of Contents

    Inside the RC Series Console ........

  • Page 4: Model Nomenclature

    2 – Remote Wall-Mounted T-Stat Chassis only available with left piping option. SMART Equipment option is only available with remote wall-mounted thermostat control. All RC Series product is Safety listed under UL1995 thru ETL and performance listed with AHRI in accordance with standard 13256-1.

  • Page 5: Ahri Data

    RC SERIES ENGINEERING GUIDE AHRI/ISO 13256-1 Performance Ratings ECM Motors AHRI/ASHRAE/ISO 13256-1 English (IP) Units Water Loop Heat Pump Ground Water Heat Pump Ground Loop Heat Pump Flow Rate Cooling Heating Cooling Heating Cooling Heating Model EWT 86°F EWT 68°F EWT 59°F...
  • Page 6 RC SERIES ENGINEERING GUIDE Performance Standard (AHRI/ISO/ASHRAE 13256-1) The performance standard AHRI/ASHRAE/ISO 13256-1 became effective January 1, 2000 and replaces ARI Standards 320, 325, and 330. This new standard has three major categories: Water Loop (comparable to ARI 320), Ground Water (ARI 325), and Ground Loop (ARI 330).

  • Page 7: The Rc Series Console

    This efficiency means the RC Series requires less loop than any product on the market. This can mean significant savings on commercial projects. Quiet Operation All RC Series Console product is ARI 350 sound rated using third party sound testing.

  • Page 8: Inside The Rc Series Console

    Inside the RC Series Console Refrigerant Service Connections and Serviceability RC Series products all feature zero ozone depletion and low global warming potential refrigerant R-410A. Two Schrader service ports are provided in every unit. The suction side and discharge side ports are for field charging Cabinet and servicing access.

  • Page 9: Controls

    Compressor control module (CCM) controls are standard on the The optional, factory installed electric heat will operate when the RC Series console heat pump. This control features unit mounted internally mounted mode switch is in the “Emergency Heat” mode. thermostat and switches, In the “Heat”...
  • Page 10 RC SERIES ENGINEERING GUIDE Controls cont. Aurora ‘Base’ Control Field Selectable Options via Hardware DIP Switch (SW1) – Test/Con guration Button (See SW1 Operation Table) Test Mode The control is placed in the test mode by holding the push button switch SW1 for 2 - 5 seconds. In test mode most of the control timings will be shortened by a factor of sixteen (16).
  • Page 11 RC SERIES ENGINEERING GUIDE Controls - cont. Cycle with Blower - The accessory relay will cycle with Lockout – when locked out, the blower will operate the blower output. continuously in “G” speed, and PSC blower motor output will remain on. The Alarm output (ALM) and Lockout output Cycle with Compressor - The accessory relay will cycle (L) will be turned on.
  • Page 12 RC SERIES ENGINEERING GUIDE Controls - cont. Over/Under Voltage Shutdown - An over/under voltage Cooling Operation condition exists when the control voltage is outside the In all cooling operations, the reversing valve directly tracks range of 18 VAC to 30 VAC. If the over/under voltage the O input.
  • Page 13 RC SERIES ENGINEERING GUIDE Controls - cont. Aurora ‘Base’ Control LED Displays Aurora Interface and Diagnostics (AID) Tool These three LEDs display the status, configuration, and The Aurora Interface and fault codes for the control. These can also be read in plain Diagnostics (AID) Tool is English via the Aurora AID Tool.
  • Page 14 RC SERIES ENGINEERING GUIDE Controls - cont. the current thermostat demand cycle. Since compressor hot Aurora ‘Advanced’ Control Features gas temperature is dependent on loop temperature in cooling The Aurora ‘Advanced’ mode, loop temperatures may be too low to allow proper Control system expands on heating of water.
  • Page 15 RC SERIES ENGINEERING GUIDE Controls - cont. Advanced Communication Ports Home Automation 2 – E24 HA2 With a closed dry contact signal, this input will cause an Communication ports P6 and P8 will provide future alarm and Alert Code 24 to indicate on the stat or flash expansion via dedicated protocols.
  • Page 16 RC SERIES ENGINEERING GUIDE Controls - cont. Special Modes and Applications Aurora ‘Advanced’ Control LED Displays These three LEDs display the status, configuration, and 5-Speed ECM Blower Motor fault codes for the control. These can also be read in plain Normally the 5-Speed ECM motor can be driven off English via the Aurora AID Tool.

  • Page 17: Application Notes

    Using a typical RC Series, one unit A decentralized system also means if one unit should fault, the of electricity will move four to five units of heat.
  • Page 18 • Closed Loop/Ground Water Plate Heat Exchanger Systems utilize lake, ocean, well water or other water sources to maintain closed loop water temperatures in multi-unit RC Series systems. A plate frame heat exchanger isolates the units from any contaminating effects of the water source, and allows periodic cleaning of the heat exchanger during off peak hours.
  • Page 19 RC SERIES ENGINEERING GUIDE Application Notes cont. • Closed Loop /Cooler-Boiler Systems utilize a closed heat Cooler/Boiler - Closed Loop recovering loop with multiple water source heat pumps in the more conventional manner. Typically a boiler is employed to maintain closed loop temperatures above 60°F and a cooling tower to...
  • Page 20 RC SERIES ENGINEERING GUIDE Application Notes cont. Typical Unit Installation WARNING: Before performing service or maintenance operations on a system, turn off main power switches to the Unit Location indoor unit. If applicable, turn off the accessory heater power Locate the unit in an indoor area that allows for easy removal of switch.
  • Page 21 RC SERIES ENGINEERING GUIDE Application Notes cont. Water Piping Condensate Drain Piping is usually design as ‘reverse return’ to equalize flow paths On console units, the internal condensate drain assembly consists through each unit. A short flexible pressure rated hose is used to of a drain tube which is connected to the drain pan.

  • Page 22: Selection Example

    RC SERIES ENGINEERING GUIDE Selection Example To achieve optimal performance, proper selection of each heat be selected on cooling capacity only since the heating output is pump is essential. A building load program should be used to usually greater than the cooling capacity.
  • Page 23 Antifreeze solution is Propylene Glycol 20% by weight. Determine the corrected heating and cooling performance at 30°F and 90°F respectively as well as pressure drop at 30°F for an RC Series Console RC18. The corrected cooling capacity at 90°F would be: 17,100 MBtuh x 0.969 = 16,569 MBtuh The corrected heating capacity at 30°F would be: 14,300 MBtuh x 0.913 = 13,056 MBtuh...

  • Page 24: Dimensional Data

    RC SERIES ENGINEERING GUIDE Dimensional Data - Flat Top Cabinet RCW09-18 RIGHT RETURN LEFT RETURN FILTER BRACKET FILTER BRACKET DETAIL B DETAIL B FRONT TWIST EXTENDED TAB TWIST EXTENDED BACK AND FORTH UNTIL TAB BACK AND TAB BREAKS OFF FORTH UNTIL...
  • Page 25 RC SERIES ENGINEERING GUIDE Dimensional Data - Slope Top Cabinet RCS09-18 Overall Cabinet Slope Top Configuration Grille Grille Width Depth Height Grille Lid Length Width 45.0 11.1 28.6 35.0 44.1 10.3 09-12 114.3 28.2 72.6 23.4 88.9 15.6 7.2 112.0 26.0 10.9 50.0 12.6...
  • Page 26 RC SERIES ENGINEERING GUIDE Dimensional Data - Extended Slope Top Cabinet RCE09-18 Overall Cabinet Ext. Slope Top Configuration Grille Grille Width Depth Height Grille Lid Length Width 50.0 12.6 29.1 35.0 49.1 12.0 09-12 127.0 32.0 73.9 23.4 88.9 15.6 6.1 124.7 30.5 10.9...
  • Page 27 RC SERIES ENGINEERING GUIDE Dimensional Data - Right Return Controls Detail...
  • Page 28 RC SERIES ENGINEERING GUIDE Dimensional Data - Right Return Chassis Data = inches (cm) Models 09-12 Models 15-18 37.88 42.88 (96.2) (108.9) 9.38 28.5 8.88 34.0 (23.8) (72.4) (22.6) (86.4) CONTROL PANEL CONTROL PANEL (3.8) (3.8) BLOWER ACCESS PANEL BLOWER ACCESS PANEL...
  • Page 29 RC SERIES ENGINEERING GUIDE Dimensional Data - Left Return Controls Detail...
  • Page 30 RC SERIES ENGINEERING GUIDE Dimensional Data - Left Return Chassis Data = inches (cm) Models 09-12 Models 15-18 37.88 42.88 (96.2) (108.9) 28.5 9.38 34.0 8.88 (72.4) (23.8) (86.4) (22.6) CONTROL PANEL CONTROL PANEL 1.50 1.50 (3.8) (3.8) 1.50 1.50 (3.8)

  • Page 31: Unit Operating Limits

    RC SERIES ENGINEERING GUIDE Operating Limits Cooling Heating Operating Limits (°F) (°C) (°F) (°C) Air Limits Min. Ambient Air Rated Ambient Air 26.7 21.1 Max. Ambient Air 37.8 29.4 Min. Entering Air 10.0 Rated Entering Air db/wb 80.6/66.2 27/19 20.0 Max.

  • Page 32: Physical Data

    RC SERIES ENGINEERING GUIDE Physical Data Consoles Model Compressor (1 each) LG Rotary Factory Charge R410A, oz [kg] 27 [0.77] 27 [0.77] 36 [1.02] 34 [0.96] Fan Motor & Blower Fan Motor Type/Speeds 3 Speeds Fan Motor- hp [W] 0.25 [186] 0.25 [186]...

  • Page 33: Unit Electrical Data

    RC SERIES ENGINEERING GUIDE Electrical Data ECM Motor Compressor Total Rated Voltage Model Motor Unit Circ Fuse/ Voltage Min/Max HACR 115/60/1 104/127 12.5 50.0 4.25 12.3 14.3 208-230/60/1 187/253 21.0 10/15 265/60/1 238/292 22.0 10/15 115/60/1 104/127 14.8 50.0 4.25 13.8...

  • Page 34: Auxiliary Heat Ratings

    RC SERIES ENGINEERING GUIDE Auxiliary Heat Ratings ECM Motors Heater Heater Total Min. Max. Rated Voltage Model Element Motor Element Unit Circuit Fuse/ Voltage Min./Max. Watts Amp. Brkr. 208/60/1 197/254 2.45 3.93 09-12 230/60/1 197/254 1000 2.60 4.35 (1 kW)

  • Page 35: Reference Calculations

    RC SERIES ENGINEERING GUIDE Reference Calculations Heating Calculations: Cooling Calculations: LWT = EWT + LWT = EWT - GPM x 500 GPM x 500 LAT (DB) = EAT (DB) - LAT = EAT + CFM x 1.08 CFM x 1.08...

  • Page 36: Correction Factor Tables

    RC SERIES ENGINEERING GUIDE Correction Factor Tables Cooling Capacity Corrections Sensible Cooling Capacity Multipliers - Entering DB ºF Entering Total Power Heat of Air WB ºF Clg Cap Input Rejection 80.6 0.898 0.723 0.866 1.048 1.185 0.985 0.913 0.912 0.632 0.880...

  • Page 37: Capacity Data

    RC SERIES ENGINEERING GUIDE RC09...
  • Page 38 RC SERIES ENGINEERING GUIDE RC12...
  • Page 39 RC SERIES ENGINEERING GUIDE RC15...
  • Page 40 RC SERIES ENGINEERING GUIDE RC18...

  • Page 41: Wiring Schematics

    RC SERIES ENGINEERING GUIDE Wiring Schematics CCM - with ECM Motor and Electronic Stat 208-230-265/60/1 Motor Compressor Blue Unit Power Supply Motor Ground 208-230/60/1 or Module 265-277/60/1 Green/Yellow Handi - Box Tan (33) Brown (26) Note 4 Black (31) Red (32)
  • Page 42 RC SERIES ENGINEERING GUIDE Wiring Schematics cont. ABC - ECM with Electric Heat and Remote Stat 208-230-265/60/1 Compressor Blue Motor Unit Power Supply Motor 208-230/60/1 or Module Ground 265/60/1 Handi - Box White White Note 2 Fan Speed Switch High...
  • Page 43 RC SERIES ENGINEERING GUIDE Wiring Schematics cont. 208-230-265/60/1 ABC - ECM with Electric Heat and Remote Stat Notes: 1 – Swap blue and red leads for 208V operation. 2 – Factory wired. Refer to blower table settings. 3 Optional field installed Aquastat for use with single heat.
  • Page 44 RC SERIES ENGINEERING GUIDE Wiring Schematics cont. ABC - with ECM and Electronic Stat 208-230-265/60/1 Yellow Black (10) Black (09) Blue (08) Blue (07) Yellow Yellow Orange (02) Orange (01) K1-RV Relay K3-CC2 Relay Black (15) K2-CC Relay Violet (14)
  • Page 45 RC SERIES ENGINEERING GUIDE Wiring Schematics cont. ABC - with ECM and Electronic Stat 208-230-265/60/1 Accessory Relay Operation SW2-4 SW2-5 Cycle with Blower Cycle with Compressor Water Valve Slow Open Outdoor Air Damper Aurora Timing Events Event Normal Mode Test Mode...
  • Page 46 RC SERIES ENGINEERING GUIDE Wiring Schematics cont. CCM - with ECM, Electric Heat and Electronic Stat 208-230-265/60/1 Blue Compressor Unit Power Supply Motor Ground 208-230/60/1 or Blue 265-277/60/1 Handi - Box Motor White White Tan (33) Module Green/Yellow Brown (26)

  • Page 47: Engineering Guide Specifications

    RC SERIES ENGINEERING GUIDE Engineering Guide Specifi cations General Compressors shall be high-efficiency single speed rotary type designed for heat pump duty and mounted on durometer grommets Furnish and install Water Source Heat Pumps, as indicated on the to provide vibration free compressor mounting. Compressor motors plans.
  • Page 48 RC SERIES ENGINEERING GUIDE Engineering Guide Specifi cations cont. Unit mounted thermostat shall be the standard thermostat option. Hose Kits - Automatic Balancing and Ball Valves All unit mounted thermostats shall be auto changeover. Manual (field-installed) changeover WILL NOT be accepted. Electromechanical operation A flexible steel braid hose featuring Kevlar®...
  • Page 49 RC SERIES ENGINEERING GUIDE Notes...

  • Page 51: Revision Guide

    RC SERIES ENGINEERING GUIDE Revision Guide Pages: Description: Date: Multiple Removed FX10 Control Option, Added Aurora Controls, Updated Wiring Schematics 01 Mar 2017 Obsoleted PSC Option, Updated Nomenclature, Updated Wiring Schematics 04 Mar 2015 Updated with All-Aluminum Air Coils 07 Mar 2014...
  • Page 52 Product: RC Series Console Type: Geothermal/Water Source Heat Pump Size: 0.75-1.5 Ton Document Type: Engineering Guide Form: 146.04-EG1 (0317) Supercedes: 146.00-EG4 (0515)

This manual is also suitable for:

Rc09Rc12Rc15Rc18

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