ROTH TerraStar Heat Pumps V-Series WATER-TO-AIR Two-Stage, R-410a Packaged Vertical Unit Specification Catalog P/N 2300100903 Call 888-266-7684 US or 800-969-7684 CAN or visit our website at www.roth-america.com ...Your environment is our business...
Table of Contents: Product Introduction & Unit Features................................................................................................................. 2 Performance Data: AHRI - Single Compressor.................................................................................................... 3 Unit Nomenclature: Vertical Cabinets................................................................................................................. 4 Glossary....................................
Product Introduction & Unit Features Unit Features at a Glance • Non-Ozone Depleting R-410A Refrigerant • Rugged Multi-Position Powder Coated Steel Cabinet Construction with Two-Tone Accent Panels • All Panels Removable for Easy Service • Coated Air Coils For Extended Life • Bidirectional Expansion Valve • ECM Blower Motor • Corrosion-Proof, Stainless Steel Drain Pan • ETL Certified to UL & CSA Standards • AHRI Certified to ISO Standards • Copper Coaxial Water Heat Exchanger • Flow Switch Protected • Fault
Unit Performance: AHRI Data - Single Compressor Units Ground Loop Heat Pump Model RXT024 RXT036 RXT048 RXT060 RXT072 Capacity Heating Btu/hr Full Load Cooling COP Btu/hr EER Future Model Part Load Full Load 28,500 4.1 38,900 18.2 Part Load 22,000 4.8 29,000 28.4 Full Load 42,500 4.0 53,500 17.7 Part Load 33,500 4.7 42,400 25.2 Full Load 50,000 3.8 65,500 17.6 Part Load 39,500 4.3 48,600 23.5 Full Load 60,000 3.9 70,000 15.6 Part Load 50,000 4.3 56,500 20.
Roth Geothermal Heat Pumps 2010 Models - Water-to-Air 2-stage Vertical Unit Nomenclature: Rev.
Calculations, Water Flow Selection, & Performance Data Notes Heating & Cooling Calculations Heating Cooling LAT = EAT + HC CFM x 1.08 LAT (DB) = EAT (DB) SC CFM x 1.08 LWT = EWT HE GPM x 500 LWT = EWT + HR GPM x 500 LC = TC - SC Water Flow Selection Proper flow rate is crucial for reliable operation of geothermal heat pumps. The performance data shows three flow rates for each entering water temperature (EWT column).
RXT036 Performance Data: Part Load 3.0 Ton, 1050 CFM Heating / 1050 CFM Cooling Heating WPD PSI FT EWT °F Flow GPM 25 9.0 4.4 10.2 4.5 1.0 2.3 7.0 2.5 5.8 9.0 4.2 9.7 4.5 1.0 2.3 7.0 2.3 5.3 9.0 3.9 9.0 4.5 0.9 2.1 7.0 2.2 5.1 9.0 3.6 8.3 4.5 0.8 1.8 7.0 2.0 4.6 9.0 3.3 7.6 4.5 0.8 1.8 7.0 1.9 4.4 9.0 3.1 7.2 4.5 0.7 1.6 7.0 1.8 4.2 9.0 2.9 6.7 4.5 0.7 1.6 7.0 1.7 3.9 9.0 2.8 6.5 4.5 0.6 1.4 7.0 1.6 3.7 9.0 2.6 6.0 4.5 0.6 1.
RXT036 Performance Data: Full Load 3.0 Ton, 1300 CFM Heating / 1300 CFM Cooling Heating WPD PSI FT EWT °F Flow GPM 25 9.0 4.4 10.2 4.5 1.0 2.3 7.0 2.5 5.8 9.0 4.2 9.7 4.5 1.0 2.3 7.0 2.3 5.3 9.0 3.9 9.0 4.5 0.9 2.1 7.0 2.2 5.1 9.0 3.6 8.3 4.5 0.8 1.8 7.0 2.0 4.6 9.0 3.3 7.6 4.5 0.8 1.8 7.0 1.9 4.4 9.0 3.1 7.2 4.5 0.7 1.6 7.0 1.8 4.2 9.0 2.9 6.7 4.5 0.7 1.6 7.0 1.7 3.9 9.0 2.8 6.5 4.5 0.6 1.4 7.0 1.6 3.7 9.0 2.6 6.0 4.5 0.6 1.
RXT048 Performance Data: Part Load 4.0 Ton, 1400 CFM Heating / 1400 CFM Cooling WPD PSI FT EWT °F Flow GPM 25 9.0 4.8 11.1 4.5 1.1 2.5 7.0 2.8 6.5 9.0 4.6 10.6 4.5 1.1 2.5 7.0 2.6 6.0 9.0 4.2 9.7 4.5 1.0 2.3 7.0 2.4 5.5 9.0 4.0 9.2 4.5 0.9 2.1 7.0 2.3 5.3 9.0 3.7 8.5 4.5 0.9 2.1 7.0 2.1 4.9 9.0 3.5 8.1 4.5 0.8 1.8 7.0 2.0 4.6 9.0 3.4 7.9 4.5 0.8 1.8 7.0 2.0 4.6 9.0 3.3 7.6 4.5 0.8 1.8 7.0 1.9 4.4 9.0 3.2 7.4 4.5 0.8 1.8 7.
RXT048 Performance Data: Full Load 4.0 Ton, 1650 CFM Heating / 1700 CFM Cooling WPD EWT Flow °F GPM PSI FT 25 12.0 8.5 19.6 6.0 2.0 4.6 9.0 4.6 10.6 12.0 8.2 18.9 6.0 1.9 4.4 9.0 4.2 9.7 12.0 7.6 17.6 6.0 1.8 4.2 9.0 4.0 9.2 12.0 7.0 16.2 6.0 1.7 3.9 9.0 3.7 8.5 12.0 6.6 15.2 6.0 1.6 3.7 9.0 3.5 8.1 12.0 6.3 14.6 6.0 1.5 3.5 9.0 3.4 7.9 12.0 6.0 13.9 6.0 1.4 3.2 9.0 3.3 7.6 12.0 5.8 13.4 6.0 1.4 3.2 9.0 3.2 7.4 12.0 5.6 12.
RXT060 Performance Data: Part Load 5.0 Ton, 1500 CFM Heating / 1550 CFM Cooling EWT °F Flow GPM WPD PSI FT 25 12.0 5.6 12.9 6.0 1.3 3.0 10.0 3.7 8.5 12.0 5.4 12.5 6.0 1.2 2.8 10.0 3.4 7.9 12.0 4.9 11.3 6.0 1.1 2.5 10.0 3.2 7.4 12.0 4.6 10.6 6.0 1.1 2.5 10.0 3.0 6.9 12.0 4.3 9.9 6.0 1.0 2.3 10.0 2.8 6.5 12.0 4.1 9.5 6.0 1.0 2.3 10.0 2.7 6.2 12.0 3.9 9.0 6.0 0.9 2.1 10.0 2.6 6.0 12.0 3.8 8.8 6.0 0.9 2.1 10.0 2.5 5.8 12.0 3.7 8.5 6.
RXT060 Performance Data: Full Load 5.0 Ton, 1750 CFM Heating / 1850 CFM Cooling EWT °F Flow GPM WPD PSI FT 25 15.0 8.8 20.3 7.5 2.1 4.9 11.5 4.9 11.3 15.0 8.4 19.4 7.5 1.9 4.4 11.5 4.5 10.4 15.0 7.7 17.8 7.5 1.8 4.2 11.5 4.2 9.7 15.0 7.2 16.6 7.5 1.7 3.9 11.5 3.9 9.0 15.0 6.7 15.5 7.5 1.6 3.7 11.5 3.7 8.5 15.0 6.4 14.8 7.5 1.5 3.5 11.5 3.6 8.3 15.0 6.1 14.1 7.5 1.5 3.5 11.5 3.4 7.9 15.0 5.9 13.6 7.5 1.4 3.2 11.5 3.4 7.9 15.0 5.
RXT072 Performance Data: Part Load 6.0 Ton, 1800 CFM Heating / 1750 CFM Cooling EWT ¡F Flow GPM WPD PSI FT 25 14.0 5.2 12.0 8.0 1.6 3.7 10.0 2.6 6.0 14.0 5.0 11.6 8.0 1.6 3.7 10.0 2.5 5.8 14.0 4.8 11.1 8.0 1.5 3.5 10.0 2.4 5.5 14.0 4.7 10.9 8.0 1.5 3.5 10.0 2.3 5.3 14.0 4.5 10.4 8.0 1.4 3.2 10.0 2.3 5.3 14.0 4.4 10.2 8.0 1.4 3.2 10.0 2.2 5.1 14.0 4.3 9.9 8.0 1.4 3.2 10.0 2.1 4.9 14.0 4.2 9.7 8.0 1.3 3.0 10.0 2.0 4.6 14.0 4.0 9.
RXT072 Performance Data: Full Load 6.0 Ton, 2150 CFM Heating / 2100 CFM Cooling EWT °F Flow GPM WPD PSI FT 25 16.0 6.8 15.7 9.0 2.1 4.9 14.0 5.0 11.6 16.0 6.6 15.2 9.0 2.0 4.6 14.0 4.8 11.1 16.0 6.3 14.6 9.0 1.9 4.4 14.0 4.7 10.9 16.0 6.1 14.1 9.0 1.9 4.4 14.0 4.5 10.4 16.0 5.9 13.6 9.0 1.8 4.2 14.0 4.4 10.2 16.0 5.8 13.4 9.0 1.8 4.2 14.0 4.3 9.9 16.0 5.6 12.9 9.0 1.7 3.9 14.0 4.2 9.7 16.0 5.4 12.5 9.0 1.6 3.7 14.0 4.0 9.2 16.0 5.
Correction Factors Heating Correction Factors EAT °F HC HE kW 50 1.0465 1.1188 0.8024 55 1.0351 1.0918 0.8436 60 1.0253 1.0645 0.8928 65 1.0108 1.0300 0.9454 70 1.0000 1.0000 1.0000 75 0.9895 0.9701 1.0553 80 0.9742 0.9489 1.0518 Cooling Correction Factors Sensible Cooling Correction Factors EAT (WB) °F TC HR kW EAT (WB) °F 55 0.8215 0.8293 0.8635 70 75 60 0.8955 0.9001 0.9205 55 1.201 1.289 63 0.9404 0.9431 0.9547 60 0.943 1.067 1.192 65 0.
Physical Data Dual Capacity Vertical Model Number 024 036 048 060 072 10 x 11 10 x 11 10 x 11 10 x 11 .5 1 1 1 72 85 96 118 Face Area (Sq.Ft.) 5.56 6.25 6.25 6.25 Dimensions (in.) 32 x 28.5 x 2.1 36 x 28.5 x 2.2 36 x 28.5 x 2.8 36 x 28.5 x 2.8 3 3 4 4 Fan Wheel (in.) Fan Motor ECM (HP) Future Models Refrigerant Charge (oz.
Dimensional Data: Vertical Upflow Configuration B C 27.63 .97 Power Supply 1/2” 5.50 .89 1.13 CAP High Voltage Supply 1” E BSP Air Coil D D A2 A1 Condensate 3/4” FPT Condensate 3/4” FPT CSP ASP ASP Left View Front & Back View Control Panel Plug Plate 30.33 28.01 Low Votage 1/2” 16.00 CAP Plenum Flanges P SA Access Panels AIR COIL SIDE Filter Rack 16.00 32.20 30.33 28.01 BS P 5.31 Control Box 32.20 Top View 14.00 Top Discharge SA CS P P LEGEND: 10.
Electrical Data Two-Stage Packaged Units 60Hz Power Model Voltage Code Compressor Volts Phase LRA RLA ECM Fan Motor FLA 82.0 16.7 4.3 0.5 4.0 25.5 29.7 45 10 024 HWG Pump FLA Ext Loop Pump FLA* Total Unit FLA Min Circuit AMPS Max Fuse HACR Min AWG Max Ft 65 Future Model 036 1 208-230 1 048 1 208-230 1 96.0 21.2 7.0 0.5 5.5 34.2 39.5 60 8 74 060 1 208-230 1 118.0 25.6 7.0 0.5 5.5 38.6 45.0 70 6 105 072 1 208-230 1 150.0 27.2 7.0 0.5 5.5 40.
Electrical Data: Auxiliary Heater Electrical Data TECHNICAL DATA (AHTR Electric Heaters only) Single Phase w/ Circuit Breaker Heater Model AHTR101B Ground Wire Heat kW Supply Circuit Number Heater kW Per Circuit FLA Total AMPS 240 10 Single 5 41.7 52.1 208 7.5 Single 3.75 36.1 45.1 2 6 115 1 10 Mult. 1 5 20.8 26.0 30 2 10 118 1 10 Mult. 2 10 41.7 52.1 60 2 6 101 1 10 Mult. 1 3.75 18.0 22.5 30 2 10 118 1 10 Mult. 2 7.5 36.1 45.
Controls Microprocessor Features and Operation Roth’s geothermal heat pump controls provide a unique modular approach for controlling heat pump operation. The control system uses one, two, or three printed circuit boards, depending upon the features of a particular unit. This approach simplifies installation and troubleshooting, and also eliminates features that are not applicable for some units.
Controls CFM ECM Board Layout COM W1 COM2 24VAC XFMR SEC ECM Board O/B Y1 G W1 R ODD W2 Y2 C Loop Pump Circuit Breakers (Single Compressor Units) The loop pump(s) and desuperheater pump are protected by control box mounted circuit breakers for easy wiring of pumps during installation. Circuit breakers eliminate the need to replace fuses. Safety Controls The control receives separate signals for high pressure, low pressure, low water flow, and condensate overflow faults.
Controls Intelligent Reset If the thermostat is powered off and back on (soft reset), the board will reset, but the last fault will be stored in memory for ease of troubleshooting. If power is interrupted to the board, the fault memory will be cleared. Diagnostics The lockout board includes five LEDs (status, high pressure, low pressure, low water flow, condensate overflow) for fast and simple control board diagnosis. Below is a table showing LED function.
Controls the over/under voltage feature is disabled. On rare occasions, variations in voltage will be outside the range of the over/under voltage feature, which may require removal of the jumper. However, removal of the jumper could cause the unit to run under adverse conditions, and therefore should not be removed without contacting technical services. An over/under voltage condition could cause premature component failure or damage to the unit controls.
Controls Sequence of Operation: Water-to-Air Units, Single Compressor, PSC Fan Cooling, 2nd Stage (Y1,Y2,O,G) Two-Stage Units The ECM fan adjusts to 2nd stage CFM level, and the compressor full load solenoid valve is energized. Cooling, Dehumidification Mode The ECM control module includes two types of dehumidification modes, Forced Dehumidification mode, and On Demand Dehumidification (ODD).
Controls ECM Fan Performance - Two-Stage Compressor Units Model 1 Heating Modes Cooling Modes Dehumidification Mode6 1st Stage 2nd Stage 1st Stage 2nd Stage 1st Stage 2nd Stage A - - - - - - Program 2 024 036 048 060 072 DIP Switch Settings4 Only Fan S1 S2 S3 S4 S5 S6 S7 S8 - - - - - - - - - Future Model B 1050 1300 1050 1300 893 1105 650 OFF OFF ON OFF OFF OFF OFF OFF C 900 1200 900 1200 765 1020 550 OFF OFF OFF OFF OFF OFF OFF OFF
Controls RXT Series Catalog - August 2010 25 Roth
Engineering Specifications General The Geothermal Heat Pump system and the earth loop shall be one system and include all interconnecting piping and controls to provide an efficient, harmoniously balanced package. All units shall be tested and rated by ETL in accordance with UL and CSA test laboratory safety and performance standards. Each unit shall be computer run-tested at the factory. Capacities and efficiencies shall be certified by AHRI and meet CSA standards.
Options, Accessories, & Warranty Desuperheater Optional desuperheater package of vented double wall copper constructed heat exchanger coil suitable for potable water shall be provided. The heat exchanger and hot water circulating pump shall be factory installed inside the cabinet. Field Installed Hydronic Pump Module (Flow Center) Pump module shall be self contained and provide all liquid flow, liquid fill and connection required for earth loop system.
STANDARD RESIDENTIAL WARRANTY Roth Industries, Inc. for brand: “TerraStar” Residential Single Family 10 YEAR LIMITED WARRANTY (10/5/5) Roth Industries, Inc. warrants the refrigerant system components, to include the compressor, air coil, coaxial heat exchanger(s), expansion valve and reversing valve, to be free from defects in material and workmanship for a period of ten (10) years from the date of delivery to the original purchaser-user, transferable to new owner. Roth Industries, Inc.
RXT Series Catalog - August 2010 29 Roth
Revision Table Date: By: Page: Description: August 2010 KT All First Published Roth 30 RXT Series Catalog - August 2010
Roth Industries, Inc. P.O. Box 245 Syracuse, NY 13211 888-266-7684 US 800-969-7684 CAN 866-462-2914 FAX www.roth-america.com info@roth-usa.
