Installation, Operation, & Maintenance Manual IOM 8001 Rev.
WSV6 VERTICAL SERIES - IOM COPYRIGHT First Co. / AE-Air works to continuously improve its products and as a result, it reserves the right to change design and specifications without notice. The warranty may be void unless the Startup & Performance Checklist is completed and returned to the warrantor. If the HVAC unit is not installed properly, the warranty will be void, as the manufacturer cannot be held accountable for problems that stem from improper installation. ©2023 First Co.
WSV6 VERTICAL SERIES - IOM TABLE OF CONTENTS SAFETY CONSIDERATIONS MODEL NOMENCLATURE GENERAL INFORMATION INTRODUCTION STORAGE SHIPPING & PACKAGE LIST UNIT INSPECTION CHECKLIST UNIT DIMENSIONAL DATA UNIT PHYSICAL DATA ELECTRICAL DATA INSTALLATION ELECTRICAL APPLICATION CONTROLS PERFORMANCE DATA WIRING DIAGRAMS CIRCUIT SCHEMATIC STARTUP INSTRUCTIONS STARTUP & PERFORMANCE CHECKLIST INSTRUCTIONS MAINTENANCE & SERVICE TROUBLESHOOTING SUPPORT/REFERENCE MATERIAL STARTUP & PERFORMANCE CHECKLIST NOTES WSV6 Vertic
WSV6 VERTICAL SERIES - IOM SAFETY CONSIDERATIONS 1. READ THE ENTIRE MANUAL BEFORE STARTING THE INSTALLATION. 2. These instructions are intended as a general guide and do not supersede national, state, or local codes in any way. 3. Altering the product, improper installation, or the use of unauthorized factory parts voids all warranty or implied warranty and may result in adverse operation and/or performance or may result in hazardous conditions to service personnel and occupants.
WSV6 VERTICAL SERIES - IOM SAFETY CONSIDERATIONS CONTINUED Mechanical components and filters can become clogged with dirt and debris, which can cause damage to the system. The manufacturer does not warrant equipment subjected to abuse. Construction debris can void warranties and liability for equipment failure, personal injury, and property damage. Material in this shipment has been inspected at the factory and released to the transportation agency in good condition.
WSV6 VERTICAL SERIES - IOM MODEL NOMENCLATURE FIGURE 1 – Model Nomenclature 6 WSV6 Vertical Series – IOM
WSV6 VERTICAL SERIES - IOM GENERAL INFORMATION DO NOT use these units as a source of heating or cooling during the construction process. Mechanical components and filters can become clogged with dirt and debris, which can cause damage to the system. The manufacturer does not warrant equipment subjected to abuse. Before servicing equipment, ALWAYS turn off all power to the unit. There may be more than one disconnect switch. Electrical shock can cause injury or death.
WSV6 VERTICAL SERIES - IOM STORAGE Equipment should be stored in a clean dry, conditioned area with maximum temperatures up to 120°F [48.89°C] and minimum temperatures to 32°F [0°C]. Units should be stored upright and in an indoor environment. It is recommended to leave packaging on the unit until the installation is to begin. Store cabinets how they are shipped (vertical), keeping them crated and on their pallets for protection.
WSV6 VERTICAL SERIES - IOM UNIT INSPECTION CHECKLIST Complete the inspection procedures below before preparing unit for installation: 1) Visually inspect unit for any shipping damage. Damage must be reported immediately to the shipping company to make a claim. 2) Ensure that the carrier makes proper notation of any shortages or damage on all copies of the freight bill and completes a common carrier inspection report.
WSV6 VERTICAL SERIES - IOM UNIT DIMENSIONAL DATA FIGURE 4 – Unit Dimensions 10 WSV6 Vertical Series – IOM
WSV6 VERTICAL SERIES - IOM UNIT DIMENSIONAL DATA CONTINUED DIMENSIONAL DATA MODEL WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036 WSV6042 WSV6048 WSV6060 WSV6072 A 21.50 21.50 21.50 21.50 21.50 21.50 26.00 26.00 26.00 26.00 OVERALL CABINET B 21.50 21.50 21.50 21.50 21.50 26.00 26.00 26.00 26.00 26.00 C 36.25 36.25 36.25 36.25 39.25 43.25 43.25 43.25 51.25 51.25 D 9.50 9.50 5.50 5.50 5.50 5.00 7.25 7.25 5.25 5.25 E 7.75 7.75 13.75 13.75 13.75 15.75 17.75 17.75 19.00 19.00 SUPPLY CONNECTIONS F G 4.
WSV6 VERTICAL SERIES - IOM UNIT DIMENSIONAL DATA - ECONOMIZER FIGURE 5 – Unit Dimensions – Economizer RH 12 WSV6 Vertical Series – IOM
WSV6 VERTICAL SERIES - IOM UNIT DIMENSIONAL DATA - ECONOMIZER CONTINUED FIGURE 6 – Unit Dimensions – Economizer LH WSV6 Vertical Series – IOM 13
WSV6 VERTICAL SERIES - IOM UNIT DIMENSIONAL DATA - ECONOMIZER CONTINUED MODEL WSV6048 WSV6060 WSV6072 A A’ 1” 31.59 0.91 31.59 0.91 31.59 0.91 DIMENSIONAL DATA - ECONOMIZER F C D E G H I 2” L R L R 1.91 30.39 29.82 43.16 2.72 6.22 10.72 16.72 5.25 18.88 1.92 1.91 30.39 29.82 51.20 2.72 6.22 10.72 16.72 5.25 18.88 1.92 1.91 30.39 29.82 51.20 2.72 6.22 10.72 16.72 5.25 18.88 1.92 B J K L 2.38 18.88 4.77 2.38 18.88 4.77 2.38 18.88 4.
WSV6 VERTICAL SERIES - IOM ELECTRICAL DATA MODEL WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036 WSV6042 WSV6048 WSV6060 WSV6072 ELECTRICAL DATA BLOWER MIN. MAX. COMPRESSOR MOTOR VOLTAGE-PH-HZ CIRCUIT CIRCUIT RLA LRA FLA HP AMPACITY PROTECTION 208/230-1-60 3.7 22 2.3 1/4 7 15 265-1-60 3.5 22 2.3 1/4 7 15 208/230-1-60 4.7 25 2.3 1/4 9 15 265-1-60 4.2 22 2.3 1/4 8 15 208/230-1-60 9 56.3 2.8 1/3 15 20 265-1-60 7.1 43 2.6 1/3 12 15 208/230-1-60 10.9 62.9 4.6 1/2 19 25 265-1-60 9.0 54 3.
WSV6 VERTICAL SERIES - IOM INSTALLATION REQUIREMENTS Follow manufacturer’s installation instructions, as well as local and municipal building codes. INSTALLATION PRECAUTIONS Always wear all appropriate personal protection Equipment when installing and servicing these units. Use multiple people when moving and installing these units. Failure to do so could result in injury or death. Contact with metal edges and corners can result injury.
WSV6 VERTICAL SERIES - IOM INSTALLATION CONTINUED UNIT CLEARANCE REQUIREMENTS FIGURE 7 – Unit Clearance Requirements MOUNTING DETAILS Locate the unit in an area that provides minimum clearance accesses as specified by FIGURE 7 – Unit Clearance Requirements. Also, refer to this figure for detailed information on unit dimensional sizes. Consider all additional clearances needed for water connections, electrical connections, duct connections and sufficient return airflow.
WSV6 VERTICAL SERIES - IOM INSTALLATION CONTINUED MOUNTING DETAILS CONTINUED FIGURE 8 – Mounting Installation 18 WSV6 Vertical Series – IOM
WSV6 VERTICAL SERIES - IOM INSTALLATION CONTINUED FILTER BRACKETS FIGURE 9 – Filter Bracket Detail Filter brackets are shipped within the unit, they are located within the blower compartment and must be mounted to the external cabinet prior to mounting/installing the unit. Refer to Figure 9 – Filter Bracket Detail. WSV6 Vertical Series – IOM Remove shipping blocks from under blower housing before installing the unit.
WSV6 VERTICAL SERIES - IOM INSTALLATION CONTINUED PIPING NOTES Prior to making piping connections, contractor must clean and flush water loop system. Failure to clean/flush system may result in excessive noise, tripping, and premature component failure. 1. Flush all field piping prior to connection to clear all debris. 2. Open all valves (mid-way for hand valves, manually open motorized valves) prior to soldering and brazing. Use proper heat shields to protect valve bodies. 3.
WSV6 VERTICAL SERIES - IOM INSTALLATION CONTINUED PIPING INSTALLATION CONTINUED Do not allow hoses to rest against structural building components. Compressor vibration may be transmitted through the hoses to the structure, causing unnecessary noise complaints. Always check carefully for water leaks and repair appropriately. Units are equipped with female pipe thread fittings. Consult the specification sheets for sizes.
WSV6 VERTICAL SERIES - IOM INSTALLATION CONTINUED CONDENSATE DRAINAGE Condensate drain lines must be properly installed with adequate slope away from unit to ensure proper drainage. A minimum trap of 1.5 inches must be installed to isolate the negative pressures of the drain pan from the drain line. Refer to Figure 10 – Condensate Drainage for schematic information on the condensate drain lines. Check the condensate overflow sensor for proper operation and adjust if necessary.
WSV6 VERTICAL SERIES - IOM INSTALLATION CONTINUED DISCHARGE DUCTING All ductwork should conform to industry standards of good practice as described in ASHRAE System Guide. A field supplied discharge duct system will normally consist of flexible connector at the unit, a non-insulated transition piece to the full duct size, a short run of duct, an elbow without vanes and a trunk duct teeing into a branch circuit with discharge diffusers as shown in FIGURE 11 – Discharge Ducting.
WSV6 VERTICAL SERIES - IOM ELECTRICAL HIGH VOLTAGE Disconnect all power supplies before servicing. Lock out/tag out to prevent accidental electrical shock. NOTE: There may be multiple power sources supplying the unit. Use copper conductors only. Install all parts and panels before operation of unit. Failure to follow these warnings can result in injury or death.
WSV6 VERTICAL SERIES - IOM APPLICATION COOLING TOWER/BOILER APPLICATION To ensure optimum cooling and heating performance, the cooling tower and boiler loop temperature should be maintained between 55-75°F in the heating mode and 6095°F in the cooling mode. In the cooling mode, heat is rejected from the heat pump’s refrigerant into the water loop. A cooling tower and/or boiler may be required to maintain proper water temperature within the water loop.
WSV6 VERTICAL SERIES - IOM APPLICATION CONTINUED WATER WELL APPLICATION REQUIREMENTS: 50° Minimum Entering Water Temperature Cupronickel Refrigerant Heat Exchanger When a water well is used exclusively for supplying water to the heat pump, a cupronickel refrigerant heat exchanger is required and the well pump should operate only when the heat pump operate.
WSV6 VERTICAL SERIES - IOM APPLICATION CONTINUED ECONOMIZER OVERVIEW In large commercial buildings, it is common for simultaneous heating and cooling loads to be required during the winter and shoulder seasons. In order to balance the need for different heating and cooling loads, an economizer can be used to provide “free” cooling to spaces that require it. The water-source heat pumps nearer to the exterior of the building will heat the space by extracting heat from the building’s fluid supply.
WSV6 VERTICAL SERIES - IOM APPLICATION CONTINUED HOT GAS REHEAT DEHUMIDIFICATION OVERVIEW Because ventilation air is introduced into buildings, indoor air quality (IAQ) and relative humidity (RH) are important issues to address in selecting heating and cooling equipment.
WSV6 VERTICAL SERIES - IOM APPLICATION CONTINUED ANTIFREEZE CORRECTION FACTORS DATA ANTIFREEZE COOLING CAPACITY HEATING CAPACITY PRESSURE DROP ANTIFREEZE COOLING CAPACITY HEATING CAPACITY PRESSURE DROP ANTIFREEZE COOLING CAPACITY HEATING CAPACITY PRESSURE DROP ETHYLENE GLYCOL 10% 0.995 0.991 1.070 20% 30% 0.992 0.987 0.982 0.977 1.130 1.180 Table 8 - Antifreeze Correction Factors Ethylene Gycol 10% 0.990 0.987 1.070 20% 30% 0.980 0.970 0.975 0.962 1.150 1.
WSV6 VERTICAL SERIES - IOM CONTROLS SEQUENCE OF OPERATION INITIAL CONDITION: Comp = Off; Fan = Off AWAY CHIP = NOT INSERT START Y = ON YES COOL MODE G = ON NO YES YES ANTI-SHORT CYCLE FAN = ON NO LEGEND: Y = Call for Cooling G = Call for Fan HPS – High Pressure Switch LPS – Low Pressure Switch CO1 – Air-Coil Freeze Sensor CO2 = Water-Coil Freeze Sensor CON – Condensate Overflow Sensor STAND BY FAN MODE FAULT RETRY BLINK NO SYSTEM CHECK HPS = CLOSED NO COMP STATUS ON FAULT RETRY NO YE
WSV6 VERTICAL SERIES - IOM CONTROLS CONTINUED WSCM CONTROL MODULE CONTROL FEATURES Anti-short Cycle Protection Random Start High and low Pressure Cut-out Water Coil Low Temperature Cut-out Over/Under Voltage Protection Fault Retry Lockout with Soft and Hard Reset Condensate Overflow Sensor Diagnostic LED Display Test Mode Alarm Relay Accessory Relays Vacated Mode Extended Compressor Operating Monitoring MOTOR SPEED OPERATION An ECM blower can be driven directly from the WSCM con
WSV6 VERTICAL SERIES - IOM CONTROLS CONTINUED FIELD CONTROLLABLE FUNCTIONS HOME SELECTION If the switch is in the HOME position the heat pump will operate in its normal mode. AWAY SELECTION If the switch is in the AWAY position the heat pump and thermostat are set to “COOL” mode the heat pump will operate in accordance to the thermostat setting. Additionally, the heat pump will cycle on in cooling mode for 15 minute run times either 4 or 8 times per day depending on the Dip 1.7 selection.
WSV6 VERTICAL SERIES - IOM CONTROLS CONTINUED WSCM SAFETY FEATURES CONDENSATE OVERFLOW SENSOR The condensate overflow sensor must sense overflow levels for 30 continuous second to initiate a COF fault. The condensate overflow sensor will be monitored during the compressor run cycle. LOW PRESSURE The low pressure switch must be open and remain open for 30 continuous seconds during the “on” cycle to be recognized as a low pressure fault.
WSV6 VERTICAL SERIES - IOM CONTROLS CONTINUED ELECTRONIC TEMPERATURE CONTROLLER (ECONOMIZER) The electronic temperature controller must be configured prior to the initial unit start-up in order for the economizer parameters be entered. ECONOMIZER PARAMETER CODES AND MODES OF OPERATION RELAY OFF TEMPERATURE (OFF) Select the temperature in which the 3-way valve deenergizes and the unit returns to cooling mode.
WSV6 VERTICAL SERIES - IOM CONTROLS CONTINUED WSCM SAFETY FEATURES CONTROL BOARD LAYOUT LEGEND INPUT CONNECTION OR DESCRIPTION OUTPUT R C Y1 W O G --I I I I 24 VAC 24 VAC (Grounded Common) Input Call for Compressor Input Call for Heating or Emergency Heat Input Call for Reversing Valve in Cooling Input Call for Fan Operation Connect to Thermostat Fault Light – AL1 O 24VAC or Dry Contact Alarm AL2 O Alarm Relay 24VAC or Dry Contact Output for Water Solenoid Valve – A O Paralleled with Compressor Contactor
WSV6 VERTICAL SERIES - IOM CONTROLS CONTINUED WSCM SAFETY FEATURES WSCM DIP SWITCH FUNCTIONS FUNCTION OFF DIP SWITCH 1 1.1 1.2 1.3 1.4 1.5 1.6 1.
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA BLOWER DATA BLOWER DATA FACTORY BLOWER SETTINGS BLOWER DATA MODEL NUMBER WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036 WSV6042 WSV6048 WSV6048 ECON WSV6060 WSV6060 ECON WSV6072 WSV6072 ECON FAN SPEED RATED AIRFLOW WHT VIO GRY WHT VIO GRY T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 330 430 600 800 925 1150 1330 1500 1500 1875 1875 1900 1900 CFM VS. STATIC PRESSURE (in. w.g.) 0.
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA CONTINUED PRESSURE & TEMPERATURE DATA WSV6009 PRESSURE & TEMPERATURE DATA Entering Water Temp °F 20 Water Flow Rate GPM 1.1 COOLING Suction Pressure psig Air Temp Drop °F HEATING Water Temp Rise °F Operation Not Recommended 1.7 2.3 70 90 110 38 Discharge Pressure psig Air Temp Drop °F Water Temp Rise °F Operation Not Recommended 1.1 50 Suction Pressure psig 1.7 2.
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA CONTINUED PRESSURE & TEMPERATURE DATA WSV6012 PRESSURE & TEMPERATURE DATA Entering Water Temp °F 20 Water Flow Rate GPM 1.5 COOLING Suction Pressure psig 70 90 110 HEATING Water Temp Rise °F Suction Pressure psig Discharge Pressure psig Air Temp Drop °F Water Temp Rise °F Operation Not Recommended 3 50 Air Temp Drop °F 2.3 Operation Not Recommended 1.5 30 Discharge Pressure psig 59-69 263-273 16-22 7-11 2.
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA CONTINUED PRESSURE & TEMPERATURE DATA WSV6018 PRESSURE & TEMPERATURE DATA Entering Water Temp °F 20 Water Flow Rate GPM 2.3 COOLING Suction Pressure psig Air Temp Drop °F HEATING Water Temp Rise °F Operation Not Recommended 3.4 4.5 70 90 110 40 Discharge Pressure psig Air Temp Drop °F Water Temp Rise °F Operation Not Recommended 2.3 50 Suction Pressure psig 3.4 4.
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA CONTINUED PRESSURE & TEMPERATURE DATA WSV6024 PRESSURE & TEMPERATURE DATA Entering Water Temp °F 20 Water Flow Rate GPM 3 COOLING Suction Pressure psig 70 90 110 HEATING Water Temp Rise °F Suction Pressure psig Discharge Pressure psig Air Temp Drop °F Water Temp Rise °F Operation Not Recommended Operation Not Recommended 3 50 Air Temp Drop °F 4.5 6 30 Discharge Pressure psig 56-66 253-263 16-22 6-10 4.
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA CONTINUED PRESSURE & TEMPERATURE DATA WSV6030 PRESSURE & TEMPERATURE DATA Entering Water Temp °F 20 Water Flow Rate GPM 3.8 COOLING Suction Pressure psig Air Temp Drop °F HEATING Water Temp Rise °F Operation Not Recommended 5.6 7.5 70 90 110 42 Discharge Pressure psig Air Temp Drop °F Water Temp Rise °F Operation Not Recommended 3.8 50 Suction Pressure psig 5.6 7.
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA CONTINUED PRESSURE & TEMPERATURE DATA WSV6036 PRESSURE & TEMPERATURE DATA Entering Water Temp °F 20 Water Flow Rate GPM 4.5 COOLING Suction Pressure psig 70 90 110 HEATING Water Temp Rise °F Suction Pressure psig Discharge Pressure psig Air Temp Drop °F Water Temp Rise °F Operation Not Recommended 9 50 Air Temp Drop °F 6.8 Operation Not Recommended 4.5 30 Discharge Pressure psig 62-72 265-275 19-25 7-11 6.
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA CONTINUED PRESSURE & TEMPERATURE DATA WSV6042 PRESSURE & TEMPERATURE DATA Entering Water Temp °F 20 Water Flow Rate GPM 5.3 COOLING Suction Pressure psig Air Temp Drop °F HEATING Water Temp Rise °F Operation Not Recommended 7.9 10.5 70 90 110 44 Discharge Pressure psig Air Temp Drop °F Water Temp Rise °F Operation Not Recommended 5.3 50 Suction Pressure psig 7.9 10.
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA CONTINUED PRESSURE & TEMPERATURE DATA WSV6048 PRESSURE & TEMPERATURE DATA Entering Water Temp °F 20 Water Flow Rate GPM 6 COOLING Suction Pressure psig 70 90 110 HEATING Water Temp Rise °F Suction Pressure psig Discharge Pressure psig Air Temp Drop °F Water Temp Rise °F Operation Not Recommended Operation Not Recommended 6 50 Air Temp Drop °F 9 12 30 Discharge Pressure psig 65-75 271-281 19-25 7-11 9 69-79 275-285 20-26 4-8 12 73-83 2
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA CONTINUED PRESSURE & TEMPERATURE DATA WSV6060 PRESSURE & TEMPERATURE DATA Entering Water Temp °F 20 Water Flow Rate GPM 7.5 COOLING Suction Pressure psig Air Temp Drop °F HEATING Water Temp Rise °F Operation Not Recommended 11.3 15 70 90 110 46 Discharge Pressure psig Air Temp Drop °F Water Temp Rise °F Operation Not Recommended 7.5 50 Suction Pressure psig 11.
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA CONTINUED PRESSURE & TEMPERATURE DATA WSV6072 PRESSURE & TEMPERATURE DATA Entering Water Temp °F 20 Water Flow Rate GPM 9 COOLING Suction Pressure psig 70 90 110 HEATING Water Temp Rise °F Suction Pressure psig Discharge Pressure psig Air Temp Drop °F Water Temp Rise °F Operation Not Recommended Operation Not Recommended 9 50 Air Temp Drop °F 13.5 18 30 Discharge Pressure psig 56-66 275-285 20-26 5-9 13.
WSV6 VERTICAL SERIES - IOM PERFORMANCE DATA CONTINUED WATER PRESSURE DROP DATA WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036 WSV6042 WSV6048 WSV6048 ECONOMIZER WSV6060 WSV6060 ECONOMIZER WSV6072 WSV6072 ECONOMIZER WATER FLOW PRESSURE DROP DATA Flow Rate 1.0 2.0 3.0 4.0 (GPM) Pressure Drop 0.2 0.9 1.9 3.0 Flow Rate 2.0 3.0 4.0 5.0 (GPM) Pressure Drop 1.0 2.0 3.3 4.8 Flow Rate 2.0 3.0 4.0 5.0 (GPM) Pressure Drop 1.0 2.0 3.3 4.8 Flow Rate 5.0 6.0 7.0 8.0 (GPM) Pressure Drop 1.4 2.0 2.6 3.
WSV6 VERTICAL SERIES - IOM FIGURE 19 – WSV6009-12 (208-230V)* Wiring Diagram WSV6 Vertical Series – IOM WIRING DIAGRAMS WSV6009-12 WIRING DIAGRAM (208-230V)
FIGURE 20 – WSV6009-12 (265V) Wiring Diagram WSV6009-12 WIRING DIAGRAM (265V) WSV6 VERTICAL SERIES - IOM WIRING DIAGRAMS WSV6 Vertical Series – IOM
WSV6 VERTICAL SERIES - IOM WIRING DIAGRAMS WSV6018-72 WIRING DIAGRAM (208-230V) FIGURE 21 – WSV6018-72 (208-230V) Wiring Diagram 51 WSV6 Vertical Series – IOM
FIGURE 22 – WSV6018-72 (265V) Wiring Diagram WSV6018-72 WIRING DIAGRAM (265V) WSV6 VERTICAL SERIES - IOM WIRING DIAGRAMS WSV6 Vertical Series – IOM
WSV6 VERTICAL SERIES - IOM WIRING DIAGRAMS WSV6024-72 WIRING DIAGRAM (208-230-460V / 3Ph) FIGURE 23 – WSV6024-72 (208-230-460V / 3Ph) Wiring Diagram 53 WSV6 Vertical Series – IOM
WSV6 VERTICAL SERIES - IOM WSV6 Vertical Series – IOM FIGURE 24 – WSV6048-72 ECONOMIZER (208-230V) Wiring Diagram WIRING DIAGRAMS 54 WSV6048-72 ECONOMIZER WIRING DIAGRAM (208-230V)
WSV6 VERTICAL SERIES - IOM FIGURE 25 – WSV6048-72 ECONOMIZER (208-230-460V / 3Ph) Wiring Diagram WSV6 Vertical Series – IOM WIRING DIAGRAMS WSV6048-72 ECONOMIZER WIRING DIAGRAM (208-230-460V / 3Ph)
WSV6 VERTICAL SERIES - IOM CIRCUIT SCHEMATIC FIGURE 26 - Circuit Diagram 56 WSV6 Vertical Series – IOM
WSV6 VERTICAL SERIES - IOM CIRCUIT SCHEMATIC HGRH FIGURE 27 - Circuit Diagram HGRH STARTUP INSTRUCTIONS PRE-STARTUP CHECKS: Electrically ground the unit. Connect ground wire to ground lug. Failure to do so can result in injury or death. Wire any field installed device such as a fan switch or thermostat furnished by the factory in strict accordance with the wiring diagram supplied with the unit. Failure to do so could result in damage to components and will void all warranties.
WSV6 VERTICAL SERIES - IOM STARTUP INSTRUCTIONS CONTINUED PRIOR TO THE STARTUP OF THE UNIT: 9. Check that the water coil and piping had been leak checked and insulated as required. 10. Ensure that all air has been vented from the water coil. 11. Make sure that all electrical connections are tight and secure. 12. Check the electrical overcurrent protection and wiring for the correct size. 13. Verify that the low voltage wiring between the thermostat and the unit matches the wiring diagram. 14.
WSV6 VERTICAL SERIES - IOM MAINTENANCE & SERVICE PREVENTIVE MAINTENANCE To achieve maximum performance and service life of equipment, a formal schedule of regular maintenance should be established and adhered to. All appropriate personal protection equipment should be worn when servicing or maintaining this unit. Personal injury can result from sharp metal edges, moving parts, and hot or cold surfaces.
WSV6 VERTICAL SERIES - IOM TROUBLESHOOTING PROBLEM POSSIBLE CAUSE Power supply off Blown Fuse Voltage supply low ENTIRE UNIT DOES NOT RUN Thermostat Thermostat Wiring BLOWER OPERATES BUT COMPRESSOR DOES NOT RUN Safety Controls Compressor overload open Compressor motor grounded Compressor windings open Discharge pressure too UNIT OFF ON high HIGH PRESSURE CONTROL FAULT CODE 12 Refrigerant charge High pressure switch UNIT OFF ON LOW PRESSURE CONTROL FAULT CODE 13 Suction Pressure too low Refrigerant
WSV6 VERTICAL SERIES - IOM TROUBLESHOOTING CONTINUED PROBLEM UNIT SHORT CYCLES POSSIBLE CAUSE Unit oversized Thermostat Wiring and controls Unit undersized Loss of conditioned air by leaks Airflow Refrigerant charge INSUFFICIENT COOLING OR HEATING Compressor Reversing valve Operating pressures Refrigerant metering device Moisture, noncondensables CHECKS & CORRECTIONS Recalculate heating and cooling loads. Thermostat installed near a supply air register, relocate thermostat. Check heat anticipator.
WSV6 VERTICAL SERIES - IOM SUPPORT/REFERENCE MATERIAL REFERENCE CALCULATIONS HEATING ABBREVIATIONS & DEFINITIONS LDB = Leaving air temperature dry bulb °F QH LDB = EDB + GPM x 500 EDB = Entering air temperature dry bulb °F GPM = Water flow rate gallons per minute LWT = EAT + QA cfm x 1.08 CFM = Airflow rate cubic feet per minute QH = Heating capacity Btuh QA = Heat of absorption Btuh SC cfm x 1.
WSV6 VERTICAL SERIES - IOM STARTUP & PERFORMANCE CHECKLIST FIGURE 28 – Startup & Performance Checklist WSV6 Vertical Series – IOM 63
WSV6 VERTICAL SERIES - IOM NOTES 64 WSV6 Vertical Series – IOM
WSV6 VERTICAL SERIES - IOM NOTES WSV6 Vertical Series – IOM 65
P.O. Box 270969 Dallas, TX 75227 www.firstco.com or www.ae-air.com The manufacturer works to continually improve its products. It reserves the right to change design and specifications without notice. ©2023 First Co.
