Summary of Contents for Mars Comfort-aire Century Compact HBH Series
- Page 1 Installation, Operation & Maintenance Compact (HBH/HBV) Series HBH-HBV 006-60 60Hz - HFC-410A 97B0016N10 Issue Date: January 24, 2023...
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Page 2: Table Of Contents
Installation, Operation & Maintenance - HBH/HBV Compact Series Table of Contents Model Nomenclature – General Overview General Information Unit Physical Data Horizontal Installation Field Conversion of Air Discharge Horizontal Installation Vertical Installation Piping Installation Water-Loop Heat Pump Applications Ground-Loop Heat Pump Applications Ground-Water Heat Pump Applications Water Quality Standards HB - Horizontal –... -
Page 3: Model Nomenclature - General Overview
Installation, Operation & Maintenance - HBH/HBV Compact Series Model Nomenclature – General Overview 4 5 6 10 11 12 13 14 0 2 4 3 0 C P T Supply Air Flow & Series Motor Configuration HB = Heat Controller Compact Supply Configuration Motor... -
Page 4: General Information
Installation, Operation & Maintenance - HBH/HBV Compact Series General Information ⚠ ⚠ Safety WARNING! Warnings, cautions, and notices appear throughout this manual. Read these items carefully before attempting any WARNING! All refrigerant discharged from this unit must installation, service, or troubleshooting of the equipment. be recovered WITHOUT EXCEPTION. - Page 5 Installation, Operation & Maintenance - HBH/HBV Compact Series General Information, Cont’d. ⚠ ⚠ Examine all pipes, fittings, and valves before installing CAUTION! any of the system components. Remove any dirt or debris found in or on these components. CAUTION! All three phase scroll compressors must have direction of rotation verified at start-up.
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Page 6: Unit Physical Data
Installation, Operation & Maintenance - HBH/HBV Compact Series Unit Physical Data HB-Series (60 Hz) HB Series Compressor (1 Each) Rotary Scroll Factory Charge HFC-410A (oz) ECM Fan Motor & Blower Blower Wheel Size 10x10 12x10 (Dia x w) PSC Fan Motor & Blower Fan Motor Type/Speeds PSC/3 PSC/3... -
Page 7: Horizontal Installation
Installation, Operation & Maintenance - HBH/HBV Compact Series Horizontal Installation Horizontal Unit Location Mounting Horizontal Units Units are not designed for outdoor installation. Locate Horizontal units have 4 hanger brackets partially attached the unit in an INDOOR area that allows enough space for at the factory, one at each corner. - Page 8 Installation, Operation & Maintenance - HBH/HBV Compact Series Horizontal Installation, Cont’d. Figure 2: Horizontal Unit Pitch 1/4” (6.4mm) pitch toward drain for drainage Drain Connection HORIZONTAL INSTALLATION Figure 3: Typical Horizontal Unit Installation Figure 3: Typical Horizontal Unit Installation 3/8" [10mm] threaded rods (by others) Optional Low Pressure Drop Water Control Valve...
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Page 9: Field Conversion Of Air Discharge
Installation, Operation & Maintenance - HBH/HBV Compact Series Horizontal Installation – Field Conversion of Air Discharge Overview - Horizontal units can be field converted Figure 4: Left Return Side to Back between side (straight) and back (end) discharge using Remove Screws the instructions below. -
Page 10: Horizontal Installation
Installation, Operation & Maintenance - HBH/HBV Compact Series Horizontal Installation, Cont’d. Condensate Piping - Horizontal Units - A condensate Duct System Installation - Proper duct sizing and design drain line must be installed and pitched away for the unit is critical to the performance of the unit. The duct system to allow for proper drainage. -
Page 11: Vertical Installation
Installation, Operation & Maintenance - HBH/HBV Compact Series Vertical Installation Vertical Unit Location - Units are not designed for Figure 7: Vertical Unit Mounting outdoor installation. Locate the unit in an INDOOR area that allows enough space for service personnel to perform typical maintenance or repairs without removing unit from the mechanical room/closet. - Page 12 Installation, Operation & Maintenance - HBH/HBV Compact Series Vertical Installation, Cont’d. Sound Attenuation for Vertical Units - Sound Condensate Piping for Vertical Units - A condensate attenuation is achieved by enclosing the unit within a line must be installed and pitched away from the unit to small mechanical room or a closet.
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Page 13: Piping Installation
Installation, Operation & Maintenance - HBH/HBV Compact Series Piping Installation Installation of Supply and Return Piping end to prevent kinking during installation. Refer to Figure Follow these piping guidelines. 11 for an illustration of a typical supply/return hose kit. 1. Install a drain valve at the base of each supply and Adapters secure hose assemblies to the unit and risers. -
Page 14: Water-Loop Heat Pump Applications
Installation, Operation & Maintenance - HBH/HBV Compact Series Water-Loop Heat Pump Applications Commercial Water Loop Applications Balancing valves and an external low pressure drop solenoid Commercial systems typically include a number of units valve for use in variable speed pumping systems may also be connected to a common piping system. -
Page 15: Ground-Loop Heat Pump Applications
Installation, Operation & Maintenance - HBH/HBV Compact Series Ground-Loop Heat Pump Applications ⚠ ⚠ Test individual horizontal loop circuits before backfilling. CAUTION! Test vertical U-bends and pond loop assemblies prior to installation. Pressures of at least 100 psi [689 kPa] should CAUTION! The following instructions represent industry be used when testing. - Page 16 Installation, Operation & Maintenance - HBH/HBV Compact Series Ground-Loop Heat Pump Applications, Cont’d. Figure 13: Typical Ground-Loop Application Loop Water To Thermostat High and Low Voltage Knockouts Vibration Isolation Pad I n s t a l l a t i o n , O p e r a t i o n , M a i n t e n a n c e...
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Page 17: Ground-Water Heat Pump Applications
Installation, Operation & Maintenance - HBH/HBV Compact Series Ground-Water Heat Pump Applications Open Loop - Ground Water Systems - Typical open loop Water Quality Standards - Table 3 should be consulted piping is shown in Figure 14. Shut off valves should be for water quality requirements. - Page 18 Installation, Operation & Maintenance - HBH/HBV Compact Series Ground-Water Heat Pump Applications, Cont’d. Flow Regulation - Flow regulation can be accomplished reduced by applying some back pressure from the ball by two methods. One method of flow regulation involves valve located on the discharge line. Slightly closing the simply adjusting the ball valve or water control valve on valve will spread the pressure drop over both devices, the discharge line.
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Page 19: Water Quality Standards
Installation, Operation & Maintenance - HBH/HBV Compact Series Water Quality Standards Table 3: Water Quality Standards Clean water is essential to the performance and life span of water source heat pumps. Contaminants, chemicals, and minerals all have the potential to cause damage to the water heat heat exchanger if not treated properly. All closed water loop systems should undergo water quality testing and be maintained to the water quality standards listed in this table. - Page 20 Installation, Operation & Maintenance - HBH/HBV Compact Series Water Quality Standards, Cont’d. 1. The Water Quality Table provides water quality Hydrogen Sulfide has an odor of rotten eggs. If one α requirements for coaxial & brazed plate heat detects this smell, a test for H2S must be performed. exchangers.
- Page 21 Installation, Operation & Maintenance - HBH/HBV Compact Series Water Quality Standards, Cont’d. Measuring Earth Ground Resistance � 0.02 Well Casing Building Ground Rod OHM meter Measure the earth ground bond using an Ohm meter between the building's ground rod and the steel well casing. The resistance measured should be zero Ohms.
- Page 22 Installation, Operation & Maintenance - HBH/HBV Compact Series Water Quality Standards, Cont’d. Measuring Electrolysis Voltage and Current 300mV Heat Pump Volt Meter Wire Electrode inserted into port for Voltage measurement Pete's Port Water-in Water-out Amp Sensor to VOM for Current HP Piping Measure the electrolysis voltage using a volt meter between the heat pump ground and a #14 AWG solid copper wire electrode inserted into the water using a Pete’s style access port.
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Page 23: Hb - Horizontal - Dimensional Data
Installation, Operation & Maintenance - HBH/HBV Compact Series HB - Horizontal – Dimensional Data Overall Cabinet Electrical Knockouts Horizontal Model Horizontal Width Length Height 1/2” 3/4” Model 19.1 34.1 11.1 Power 006 - 012 48.5 86.6 28.2 Voltage Supply 20.1 43.1 17.0 015 - 018... - Page 24 Installation, Operation & Maintenance - HBH/HBV Compact Series HB - Horizontal – Dimensional Data, Cont’d. LEFT RETURN RIGHT RETURN Front Front Power Supply Left Return 3 / 4" [19.1mm] Knockout Right Return 1 / 2" 1.1 [27.9mm] [12.7mm] Knockout 3.3" 3.3"...
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Page 25: Hbh With Wse - Dimensional Data
Installation, Operation & Maintenance - HBH/HBV Compact Series HBH with Left Hand Waterside Economizer – Dimensional Data Return Connection Overall Cabinet Left WSE Connections Using Return Air Opening Horizontal Cond. 3/4” MPT Water Model In/Out Return Return Width Length Height Width Width Height... - Page 26 Installation, Operation & Maintenance - HBH/HBV Compact Series HBH with Right Hand Waterside Economizer – Dimensional Data Return Connection Overall Cabinet Left WSE Connections Using Return Air Opening Horizontal Cond. 3/4” MPT Water Model In/Out Return Return Width Length Height Width Width Height...
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Page 27: Hb - Horizontal Service Access
Installation, Operation & Maintenance - HBH/HBV Compact Series HB - Horizontal Service Access Left Return Back Discharge Right Return Back Discharge Supply Supply Air Flow Air Flow Return Return Air Flow Air Flow Front Front Optional WSE See Note 5 Optional WSE See Note 5 Left Return Straight Discharge... -
Page 28: Hb - Vertical Upflow - Dimensional Data
Installation, Operation & Maintenance - HBH/HBV Compact Series HB - Vertical Upflow – Dimensional Data Water Connections - Standard Units Overall Cabinet Vertical Upflow Vertical Model Upflow Width Depth Height Loop Loop Loop Loop Loop Model In/Out 19.1 19.1 22.0 006 - 012 48.5 48.5... - Page 29 Installation, Operation & Maintenance - HBH/HBV Compact Series HBV - Vertical Upflow – Dimensional Data, Cont’d. Discharge Connection Return Connection Duct Flange Installed (+/- 0.10 in, +/- 2.5mm) Using Return Air Opening Vertical Model Supply Supply Return Return Width Depth Depth Height 16.2...
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Page 30: Hbv With Wse - Dimensional Data
Installation, Operation & Maintenance - HBH/HBV Compact Series HBV with Left Hand Waterside Economizer – Dimensional Data Return Connection Overall Cabinet WSE Connections Using Return Air Opening Vertical Cond. 3/4” MPT Water Model In/Out Return Return Width Length Height Width Width Height 26.1... - Page 31 Installation, Operation & Maintenance - HBH/HBV Compact Series HBV with Right Hand Waterside Economizer – Dimensional Data Return Connection Overall Cabinet WSE Connections Using Return Air Opening Vertical Cond. 3/4” MPT Water Model In/Out Return Return Width Length Height Width Width Height 26.1...
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Page 32: Hb - Vertical Service Access
Installation, Operation & Maintenance - HBH/HBV Compact Series HB - Vertical Service Access Vertical Units Left Return Supply Air Opening Front Optionial WSE See Note 5 CCP and BSP Right Return Supply Air Opening Front Optionial WSE See Note 5 CCP and BSP Notes: 1. -
Page 33: Electrical Data - Psc
Installation, Operation & Maintenance - HBH/HBV Compact Series Electrical Data – PSC Table 4: Electrical Data - PSC STANDARD PSC HI STATIC PSC COMPRESSOR VOLTAGE RATED VOLTAGE TOTAL TOTAL Size CODE VOLTAGE MIN/MAX MOTOR UNIT CIRCUIT FUSE/ MOTOR UNIT CIRCUIT FUSE/ HACR HACR... -
Page 34: Electrical Data - Ecm
Installation, Operation & Maintenance - HBH/HBV Compact Series Electrical Data – ECM ECM-CV* COMPRESSOR VOLTAGE RATED VOLTAGE TOTAL Size CODE VOLTAGE MIN/MAX MOTOR UNIT CIRCUIT FUSE/ HACR 208-230 / 60 / 1 187.2 / 253 265 / 60 / 1 238.5 / 291.5 208-230 / 60 / 1 187.2 / 253... -
Page 35: Electrical - Line Voltage
Installation, Operation & Maintenance - HBH/HBV Compact Series Electrical – Line Voltage ⚠ ⚠ Power Connection - Line voltage connection is made by WARNING! connecting the incoming line voltage wires to the “L” side of the contractor as shown in Figure 15. Consult electrical WARNING! Disconnect electrical power source to prevent data tables for correct fuse size. -
Page 36: Eletctical - Power & Low Voltage Wiring
Installation, Operation & Maintenance - HBH/HBV Compact Series Electrical – Power & Low Voltage Wiring ELECTRICAL - LOW VOLTAGE WIRING The factory setting for LT1 is for systems using water (30°F [-1.1°C] refrigerant temperature). In low water Thermostat Connections - The thermostat should temperature (extended range) applications with be wired directly to the CXM2 or DXM2.5 board. -
Page 37: Electrical - Low Voltage Wiring
Installation, Operation & Maintenance - HBH/HBV Compact Series Electrical – Low Voltage Wiring Accessory Connections Water Solenoid Valves - An external solenoid valve(s) A terminal paralleling the compressor contactor coil has should be used on ground water installations to shut off been provided on the CXM2/DXM2.5 control. -
Page 38: Electrical - Thermostat Wiring
Installation, Operation & Maintenance - HBH/HBV Compact Series Electrical – Thermostat Wiring Thermostat Installation - The thermostat should be the position of the back plate mounting holes and drill located on an interior wall in a larger room, away from holes with a 3/16”... -
Page 39: Blower Performance Data - Hb006
Installation, Operation & Maintenance - HBH/HBV Compact Series Blower Performance Data – HB006 External Static Pressure (in. wg) Blower Speed Mode Values Type PSC - Medium Static High Airflow is controlled within 5% up to the Max ESP shown with wet coil. Do not select Dehumidification mode if HP CFM is on setting 1. -
Page 40: Blower Performance Data - Hb015
Installation, Operation & Maintenance - HBH/HBV Compact Series Blower Performance Data – HB015 External Static Pressure (in. wg) Blower Speed Mode Values Type PSC - Medium Static High PSC - High Medium Static High 1028 1103 1171 Minimum CFM Power (W) 1028 1107 1179... -
Page 41: Blower Performance Data - Hb018
Installation, Operation & Maintenance - HBH/HBV Compact Series Blower Performance Data – HB018 External Static Pressure (in. wg) Blower Speed Mode Values Type Power (W) 1022 PSC - Medium Power (W) Static 1015 1032 1088 High Power (W) Power (W) PSC - High Medium... -
Page 42: Blower Performance Data - Hb024
Installation, Operation & Maintenance - HBH/HBV Compact Series Blower Performance Data – HB024 External Static Pressure (in. wg) Blower Speed Mode Values Type PSC - Medium Static High PSC - High Medium Static High 1013 1080 1143 1203 1259 1311 Minimum CFM Power (W) 1002... -
Page 43: Blower Performance Data - Hb036
Installation, Operation & Maintenance - HBH/HBV Compact Series Blower Performance Data – HB036 External Static Pressure (in. wg) Blower Speed Mode Values Type PSC - Medium 1106 1096 1086 1067 1009 Static High 1436 1387 1329 1280 1174 1077 PSC - High Medium 1300... -
Page 44: Blower Performance Data - Hb042
Installation, Operation & Maintenance - HBH/HBV Compact Series Blower Performance Data – HB042 External Static Pressure (in. wg) Blower Speed Mode Values Type 1074 1064 PSC - Medium 1368 1321 1273 1207 1131 1064 Static High 1501 1444 1378 1302 1226 1131 PSC -... -
Page 45: Blower Performance Data - Hb048
Installation, Operation & Maintenance - HBH/HBV Compact Series Blower Performance Data – HB048 External Static Pressure (in. wg) Blower Speed Mode Values Type 1644 1606 1568 1492 1378 1264 PSC - Medium 1805 1767 1682 1625 1520 1340 Static High 1881 1815 1710... -
Page 46: Blower Performance Data - Hb060
Installation, Operation & Maintenance - HBH/HBV Compact Series Blower Performance Data – HB060 External Static Pressure (in. wg) Blower Speed Mode Values Type 1803 1774 1744 1695 1637 1568 PSC - Medium 1999 1950 1901 1852 1793 1744 1676 1588 Static High 1881... -
Page 47: Constant Volume Ecm Control
Installation, Operation & Maintenance - HBH/HBV Compact Series Constant Volume ECM Control CV ECM CV ECM The ECM Constant Volume (CV) blower motors (optional) Blower Blower are controlled directly by the DXM2.5 control board which Motor Motor converts thermostat inputs and CFM settings to signals used by the ECM-CV motor controller. -
Page 48: Wiring Diagram Matrix
Installation, Operation & Maintenance - HBH/HBV Compact Series HB-Series Wiring Diagram Matrix 208v/1 - 265v/1 208v/3 460v/3 575v/3 Unit Controller Fan Motor Water Side Economizer 006-012 015-060 024-060 024-060 041-060 None 96B0514N11 96B0514N21 96B0514N31 96B0515N11 96B0515N21 96B0515N31 CXM2 None 96B0514N12 96B0514N22 96B0514N32 CT ECM... -
Page 49: Controls - Cxm2 And Dxm2.5
Installation, Operation & Maintenance - HBH/HBV Compact Series Controls – CXM2 and DXM2.5 CXM2 Controls For detailed controller information, see the CXM2 Application, Operation, and Maintenance (AOM) manual (part # 97B0137N01). To confirm the controller type of your particular unit, refer to digit 9 on the unit model number and the unit nomenclature diagram found on page 3 of this manual. -
Page 50: Unit Starting And Operating Conditions
Installation, Operation & Maintenance - HBH/HBV Compact Series Unit Starting and Operating Limits Operating Limits Commissioning Limits Consult Table 8 for the particular model. Starting Environment – Units are designed for indoor installation conditions vary depending upon model and are based only. -
Page 51: Piping System Cleaning And Flushing
Installation, Operation & Maintenance - HBH/HBV Compact Series Piping System Cleaning and Flushing Piping System Cleaning and Flushing 9. Test the system pH with litmus paper. The system water should be in the range of pH 6.0 - 8.5 (see Cleaning and flushing the WLHP piping system is the table 3). -
Page 52: Hb With Waterside Economizer Option
Installation, Operation & Maintenance - HBH/HBV Compact Series HB with Waterside Economizer Option Figure 23: HBH - Economizer on Left Side Water Unit Access Panel Field Water In Controller Fabricated (on right Tube side of controller) HBH - Economizer on Right Side Water Unit Access... - Page 53 Installation, Operation & Maintenance - HBH/HBV Compact Series HB with Waterside Economizer Option, Cont’d. HBV - Economizer on Left Side Water Unit In Field Fabricated Tube Water In Access Panel WSE Out Controller HBV - Economizer on Right Side Access Panel Water Field...
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Page 54: Unit And System Checkout
Installation, Operation & Maintenance - HBH/HBV Compact Series Unit and System Checkout ⚠ ⚠ SYSTEM CHECKOUT WARNING! System water temperature: Check water temperature WARNING! Polyolester Oil, commonly known as POE oil, is for proper range and also verify heating and cooling a synthetic oil used in many refrigeration systems including set points for proper operation. -
Page 55: Unit Start-Up Procedure
Installation, Operation & Maintenance - HBH/HBV Compact Series Unit Start-Up Procedure Unit Start-up Procedure 6. Allow five (5) minutes between tests for pressure to equalize before beginning heating test. 1. Turn the thermostat fan position to “ON”. Blower a. Adjust the thermostat to the lowest setting. Place should start. - Page 56 Installation, Operation & Maintenance - HBH/HBV Compact Series Unit Start-Up Procedure, Cont’d. ⚠ ⚠ Figure 23: Test Mode Button WARNING! WARNING! When the disconnect switch is closed, high voltage is present in some areas of the electrical panel. Push test button to enter Test Exercise caution when working with energized equipment.
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Page 57: Unit Operating Conditions
Installation, Operation & Maintenance - HBH/HBV Compact Series Unit Operating Conditions Table 9: HB Coax Water Pressure Drop Pressure Drop, psi [kPa]* U.S. Model 30°F [-1°C] 50°F [10°C] 70°F [21°C] 90°F [32°C] 0.75 0.05 0.5 [3.7] 0.3 [2.3] 0.2 [1.6] 0.2 [1.6] 0.07 0.8 [5.3]... - Page 58 Installation, Operation & Maintenance - HBH/HBV Compact Series Unit Operating Conditions, Cont’d. Table 10: HB-Series Typical Unit Operating Pressures and Temperatures COOLING HEATING Water Dis- Water Dis- Water tering Suction Air Temp Suction Air Temp Flow charge Subcooling Temp charge Temp Superheat Superheat...
- Page 59 Installation, Operation & Maintenance - HBH/HBV Compact Series Unit Operating Conditions, Cont’d. Table 10: HB-Series Typical Unit Operating Pressures and Temperatures: Continued COOLING HEATING Water Dis- Water Suction Dis- Water tering Suction Air Temp Air Temp Flow charge Temp Pres- charge Temp Superheat...
- Page 60 Installation, Operation & Maintenance - HBH/HBV Compact Series Unit Operating Conditions, Cont’d. Table 10: HB-Series Typical Unit Operating Pressures and Temperatures: Continued COOLING HEATING Water Dis- Water Dis- Water tering Suction Air Temp Suction Air Temp Flow charge Superheat Subcooling Temp charge Superheat...
- Page 61 Installation, Operation & Maintenance - HBH/HBV Compact Series Unit Operating Conditions, Cont’d. Table 10: HB-Series Typical Unit Operating Pressures and Temperatures: Continued COOLING HEATING Water Water Entering Water Suction Discharge Air Temp Suction Discharge Air Temp Superheat Subcooling Temp Superheat Subcooling Temp Water...
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Page 62: Preventive Maintenance
Installation, Operation & Maintenance - HBH/HBV Compact Series Preventive Maintenance Water Coil Maintenance - (Direct ground water Condensate Drain - In areas where airborne bacteria applications only) If the system is installed in an area with may produce a “slimy” substance in the drain pan, it may a known high mineral content (125 P.P.M. -
Page 63: Functional Troubleshooting
Installation, Operation & Maintenance - HBH/HBV Compact Series Functional Troubleshooting Fault Possible Cause Solution Check line voltage circuit breaker and disconnect. Check for line voltage between L1 and L2 on the contactor. Main power problems Green Status LED Off Check for 24VAC between R and C on CXM2/DXM2.5 Check primary/secondary voltage on transformer. -
Page 64: Performance Troubleshooting
Installation, Operation & Maintenance - HBH/HBV Compact Series Performance Troubleshooting Symptom Htg Clg Possible Cause Solution Dirty filter Replace or clean. Check for dirty air filter and clean or replace. Reduced or no airflow in heating Check fan motor operation and airflow restrictions. Too high of external static? Check static vs blower table. -
Page 65: Start-Up Log Sheet
Installation, Operation & Maintenance - HBH/HBV Compact Series Start-Up Log Sheet Installer: Complete unit and system checkout and follow unit start-up procedures in the IOM. Use this form to record unit information, temperatures and pressures during start-up. Keep this form for future reference. Job Name: Street Address: Model Number:... -
Page 66: Functional Troubleshooting
Model Number: ________________________ Serial Number: ________________________ Installation, Operation & Maintenance - HBH/HBV Compact Series Date: ________________________ Packaged Unit Refrigeration Schematic Customer: _____________________________________ Antifreeze: ________________________ Model#: ________________________ Serial#: ________________ Loop type: _______________ Functional Troubleshooting Complaint: ________________________________________________________________________ HEATING CYCLE ANALYSIS - °F SUCTION COIL °F... -
Page 67: Warranty
LIMITED ONE (1) YEAR PARTS EXPRESS WARRANTY responsibility. If for any reason the replacement part/product is no longer MARS/Comfort-Aire/Century warrants all parts of the HBH/HBV water- available during the warranty period, Comfort-Aire/Century shall have the source heat pump used in commercial applications to be free from... -
Page 68: Revision History
Installation, Operation & Maintenance - HBH/HBV Compact Series Revision History Date: Item: Action: 01/24/23 Added CXM2 controls removed CXM and LON Added Polymer drain pan 07/08/21 Added Note 11 and 6, Updated Wiring Diagram 07/07/20 Pgs. 22-23, 27-28 and 52 Matrix 06/05/20 Updated Start-Up Log Sheet...
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