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Table of Contents
Related Manuals for Data Aire DAMA-01
Summary of Contents for Data Aire DAMA-01
- Page 2 NOTICE: Indicates information considered important but may have potential hazard for personal injury or property damage. Data Aire, Inc. reserves the right to make design changes for the purpose of product improvement or to withdraw any design without notice.
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Page 3: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ......................7 Product Information ........................7 Model Identification ........................7 Inspection ............................8 Paperwork ............................. 8 Storage ............................9 Suggested Reference Storage Room Conditions ................. 9 General Storage Considerations ....................9 Registered Trademarks – Copy Rights – References Section ........... 10 INSTALLATION ......................11 Recommended Tools for Installation .................. - Page 4 TABLE OF CONTENTS General Electrical Field Wiring Guidelines .................. 36 Electrical Service ......................... 37 Nameplate Ratings ........................37 Grounding ............................ 37 Voltage Tolerance ........................37 Three Phase Voltage Tolerance ..................37 Single-Phase Voltage Tolerance..................38 Heat Exchanger Auxiliary Control Wiring ..................38 Remote Shutdown ........................
- Page 5 Frequently Asked Questions – FAQ ................75 Electrical FAQ Section ........................ 75 Mechanical FAQ Section ......................76 Contact Data Aire ......................79 TABLE OF FIGURES Figure 1 Typical Installation ................... 16 Figure 2 Unit with Vertical Plenum Mounting Method and Condenser Installation ..17 Figure 3 Typical Discharge Check Valve ...............
- Page 6 TABLE OF CONTENTS LIST OF TABLES Table 1 Line Size Metric Conversion ................21 Table 2 Hot Gas Lines (Inches OD) ................22 Table 3 Liquid Lines (Inches OD)) ................. 22 Table 4 Suction Lines (Inches OD) ................22 Table 5 Connection Sizes, Air-Cooled Units (Inches OD) ..........23 Table 6 Connection Sizes, Water/Glycol Cooled Units (Inches OD) to Remote Condenser ........................
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Page 7: Introduction
The Data Aire CRAC unit provides cooling, reheat, humidification, dehumidification and air filtration. The unit is provided with a Data Aire Mini-dap4 microprocessor controller for precision control. The unit must be operated in a conditioned space within the operating envelope ASHRAE recommends for data centers. -
Page 8: Inspection
Paperwork Each Data Aire CRAC unit ships with a startup sheet that should be completed during installation. Also included in the paperwork is a warranty/information packet that provides important wiring diagrams, specific component literature, warranty registration cards and other valuable paperwork, including a copy of this Installation, Operation, and Maintenance manual. -
Page 9: Storage
It is the responsibility of the customer to submit a monthly log sheet showing the condition of the unit and noting any discrepancies. A copy of the log sheet should be sent to Data Aire. Failure to perform the long-term storage requirements may void the warranty. -
Page 10: Registered Trademarks - Copy Rights - References Section
Registered Trademarks – Copy Rights – References Section NOTICE: Data Aire Inc. Trademarks Disclaimer: All names, logos, brand, materials and other Registered Trademarks, Trademarks, or Copy Rights seen featured or referred to within documents or our website are explicitly the sole property of their respective and rightful trademark holders or owners. -
Page 11: Installation
INSTALLATION NOTICE: There is no intent on the part of Data Aire, Inc. to define local codes or statutes which may supersede common trade practices. The manufacturer assumes no responsibility for their interpretation. Consult local building codes and National Electrical Code (NEC) for special installation requirements. -
Page 12: Recommended Tools For Installation
If possible, transport the Data Aire unit with a forklift or pallet jacks. If using a forklift or pallet jack, make sure that the forks (if adjustable) are spread to the widest allowable distance that will fit under the skid. -
Page 13: Room Considerations
unit. A minimum clearance equal to the width of the unit is suggested on one side of the unit for removing the coil or fan assembly. Add dimension of pipe chase, ducts, control and electrical panels, etc. to minimum clearances. Allow additional clearance as required by local and national codes. -
Page 14: Equipment Handling And Rigging
Equipment Handling and Rigging WARNING: Only properly trained personnel wearing appropriate safety head gear, gloves, shoes, and glasses should attempt to move the unit, lift it, remove packaging or prepare the unit for installation. Moving Unit into Final Location Move the unit in its upright position to the installation site using a forklift or pallet jack. It is recommended that the unit be protected from damage to the decorative doors or panels during any storage or moving. -
Page 15: Horizontal Airflow Units
NOTE: There are many available unit configurations for the Mini ceiling units, therefore; be sure to identify the unit type and style before installing. For instance there may be split condenser/condensing unit sections requiring separate or shared power. Note to Installing Contractor: Condensation formation and frequent humidifier flushing (when humidifier is installed) are normal functions of this equipment. -
Page 16: Vertical Airflow Units
Figure 1 Typical Installation NOTES: 1. The unit must be level when installation is complete. Figure 5 Typical Threaded Rod and Fastening Hardware Assembly Vertical Airflow Units On vertical airflow units, the evaporator section with optional vertical airflow is 28.5” (724 mm) high and are typically mounted over a standard 2’... -
Page 17: Air Cooled Packaged Units
level. Be certain to allow for the depth of the supply/return air plenum when figuring the height of the unit in the ceiling space. The 5” (127 mm) tall vertical supply/return plenum assembly is attached to the bottom of the evaporator section once the evaporator section is installed. -
Page 18: Indoor Condensers And Condensing Units
• Completely deburr and clean tube end and inside surface of piping. • Use only a suitable silver alloy on suction and liquid lines. Data Aire recommends a silver/phosphorus/copper alloy with 5 to 15% silver to be used to braze the refrigerant line sets to the indoor and outdoor units. -
Page 19: Split Air-Cooled Unit Piping
The ultimate responsibility for line size selection is that of the installing contractor or design engineer. Data Aire does not assume this responsibility. The chart covers distances up to 200 equivalent feet (61 m). For installations beyond this distance, consult ASHRAE or similar references. -
Page 20: Figure 3 Typical Discharge Check Valve
Data Aire recommends a silver/phosphorus/copper alloy with 5 to 15% silver be used to braze the refrigerant line sets to the indoor and outdoor units. Nitrogen needs to be flowing through the lines to eliminate carbon deposit buildup on the inside of the joints. -
Page 21: Liquid Lines
The discharge line pressure drop should not exceed 9 PSI (62 kPa) for R-410A 6 PSI (41 kPa) for R- 407C. Recommended gas velocity for proper oil return is 1,000 FPM (5.1 m/sec). Slope horizontal lines downward in the direction of the refrigerant flow. The recommended slope is 1/2” (12 mm) for every ten (10) feet (3 m) of line length. -
Page 22: Hot Gas Lines
Hot Gas Lines Table 2 Hot Gas Lines (Inches OD) Equivalent Feet (Meters) 50 (15.2) 100 (30.5) 150 (45.7) 200 (61.0) Unit Tonnage Vertical Vertical Vertical Vertical Horizontal & Horizontal & Horizontal & Horizontal & Vertical Down Vertical Down Vertical Down Vertical Down Liquid Lines Table 3 Liquid Lines (Inches OD)) -
Page 23: Connection Sizes, Air-Cooled Units
Condenser with Condensing Unit Model Number Hot Gas Line Liquid Line Model Number Liquid Line Suction Line DAMA-01 DAMA-01 DAMA-1.5 DAMA-1.5 DAMA-02 DAMA-02 DAMA-2.5 DAMA-2.5 NOTICE: Units will have a liquid line and either a hot gas or suction line. Field connections at the indoor evaporator and remote condenser will not necessarily be the same as the field pipe size required. -
Page 24: Field Piping, Remote Condenser/Condensing Unit Above Evaporator
Field Piping, Remote Condenser/Condensing Unit Above Evaporator NOTES: 1. This is the recommended piping. All piping to be per local and/or state code. 2. Condenser to be no more than 60 feet (18.3 meters) above evaporator. 3. For units built after April 2017, the check valves are included internally in the evaporator section. -
Page 25: Field Piping, Remote Condenser/ Condensing Unit Below Evaporator
Field Piping, Remote Condenser/ Condensing Unit Below Evaporator NOTES: 1. This is the recommended piping. All piping to be per local and/or state code. 2. Condenser to be no more than 15 feet (4.6 M) below evaporator. 3. Slope horizontal lines downward in the direction of the refrigerant flow, 1/2” (13 mm) for every 10 (3.1 M) feet of line length. -
Page 26: Connection Sizes, Fluid Cooler (Dry Cooler)
Connection Sizes, Fluid Cooler (Dry Cooler) The information regarding Fluid Cooler (or often referred to as a “dry cooler”) connection sizes can be found in the individual Fluid Cooler User Manuals which should be referred to for more complete details. Condensate Drain System Every indoor unit has a 3/4”... -
Page 27: Condensate Trap
NOTICE: Condensation formation and frequent humidifier flushing are normal functions of this equipment. Proper drain connections must be made to ensure proper removal. Unit will require water connections for condensate removal and possibly for humidifier makeup water, condenser water, chilled water and/or hot water. -
Page 28: Figure 4 Recommended Condensate Trap Dimensions
Figure 4 Recommended Condensate Trap Dimensions Notes: 1. This trap (often referred to as a P-trap) is capable of handling static pressures equal to 4” O which is the maximum static available for ceiling units. If the unit fans are standard, there is no need to consider different dimensions but if higher total static pressure is expected, more vertical drop is required. -
Page 29: Condensate Pump Side Mounting Pump (Optional)
L1 = Minimum 1” (25.4 mm) L2 = Fan static pressure x 1.5 3. Bracket (Data Aire P/N 550-021-006) to be mounted to the unit and stainless-steel tank (Data Aire P/N 550-721-464) are factory provided. 4. Hose, hose clamps, self-drilling sheet metal screws #10 x 3/4", fittings, P-trap and copper... -
Page 30: Humidifier
Humidifier Steam Generator Humidifier The optional humidifier offered on Mini units is a steam generator type with a disposable cylinder. The humidifier makeup water should be brought to the humidifier through the field connection opening using 1/4” (6.4 mm) copper tubing. A compression fitting is provided at the humidifier. Humidifier Piping A shutoff valve (field provided) should be installed outside the air conditioner to allow disconnection for service. -
Page 31: Water/Glycol Cooled Unit Piping
Water/glycol cooled units are shipped with plate/fin heat exchangers as standard equipment. A strainer (Data Aire provided) is shipped loose and is to be field installed in the supply line with shutoff valves (field provided) before and after the strainer. The strainers and water/glycol piping must be cleaned on a periodic basis. -
Page 32: Figure 6 Typical Water/Glycol System
NOTE: Unless otherwise specified by job specific documentation 1. The expansion tank is a required component of a proper system installation. The tank can be provided by Data Aire or by others. 2. All Water/Glycol field piping must be designed and installed in accordance with ASHRAE standards and local codes. -
Page 33: Leak Testing
Leak Testing WARNING: No installation is complete until the entire system has been thoroughly checked for leaks. This includes checking the refrigerant tubing, flare fittings, pressure controls, Schrader fittings and compressor Rotolock service valves. Check both the field and factory connections. In addition to the refrigeration system, check all condenser water lines, humidifier water makeup lines, condensate lines, condensate pumps, chilled water lines, centrifugal pumps and fluid cooler (where applicable). -
Page 34: Commissioning Information
Commissioning Information In general, with respect to Data Aire products, the commissioning process is the integration of Data Aire units with your project design system. Data Aire can help provide the installation and maintenance support, but the commissioning is normally done as specified by the owner or others unless otherwise specified. -
Page 35: Electrical Connections
WARNING: Data Aire equipment must be connected by a licensed and qualified electrician. Risk of electrical shock could result in injury or death. Disconnect all remote electrical facility power prior to working on the unit. -
Page 36: General Electrical Field Wiring Guidelines
Remove all packing and shipping materials from the unit before installation. WARNING: The Data Aire Mini-dap4 controller does not isolate power from the unit, even in the Unit OFF mode. Some internal components require and receive power even during the Unit OFF mode of dap controller. -
Page 37: Electrical Service
Air Conditioning, and Refrigeration (HACR) type circuit breaker. Other protection devices are not allowed based upon the product UL listing. The facility main distribution panel which provides electrical service to the Data Aire equipment must be provided with a manual fused disconnect switch or HACR type circuit breaker per local and national electrical codes. -
Page 38: Single-Phase Voltage Tolerance
Because of the wide variety of indoor evaporators and remote heat exchangers offer by Data Aire, the installing contractor must refer to the schematic which is provided inside the electrical control box of each unit, for the required auxiliary control wiring interconnection terminal points. -
Page 39: Remote Shutdown
Figure 7 Typical Remote Heat Exchanger Interconnection Points Figure 8 Typical Indoor Evaporator Interconnection Points Remote Shutdown Every unit has remote shutdown contacts. These are intended for a field supplied dry contact or switch to be wired across two terminals. When the contactor or switch opens, the control circuit power is interrupted and the unit shuts down, including the control panel. -
Page 40: Remote Sensors
used in a control circuit not exceeding 5 amps at 24 VAC. Use field supplied Class 1 wiring. These programmable output contacts will close on a failure and remain closed until the alarm is no longer present. The terminal designations for these alarm output contact pairs are: Table 10 Remote Alarm Contacts Terminals Function Remote Alarm (Common) -
Page 41: Manual Override Switch Board
Manual Override Switch Board NOTICE: The Manual Override Board with switches was previously available on units before April 2021. Units built after April 2021 do not include this board. For testing and during startup each gForce unit is provided with manual override slide switches. There are seven (7) slide switches. -
Page 42: Wiring Diagrams
Wiring Diagrams Every Data Aire evaporator, condenser, condensing unit or fluid cooler comes with a wiring diagram. These diagrams are ladder type schematics intended for service personnel. The intent is to allow the technician to understand the wiring details associated with the electrical components and how they interface with the controls as well as peripheral equipment (including secondary heat exchangers). -
Page 43: Charging
(Ref: DOT 4BA400 or ABW400) Triple Evacuation and Dehydration Procedure Data Aire highly recommends a triple evacuation to be carried out on all Data Aire units to ensure the highest quality moisture removal. Moisture prevents the proper operation of both the compressor and the refrigeration system. -
Page 44: Tools Needed
system must be purged with nitrogen. We recommend using a solenoid magnet tool to hold the liquid line solenoid valve(s) open during this procedure. A deep vacuum gauge capable of registering pressure in microns must be attached to the system on the liquid line service port before TXV and should be at the farthest point in the system for most accurate vacuum readings. -
Page 45: Second Stage Evacuation
2. Close the Schrader core shutoff valve and turn OFF the vacuum pump. 3. Disconnect the vacuum pump hoses from the vacuum and attached them to your manifold gauges. 4. Connect a vacuum hose from the nitrogen bottle regulator to the manifold gauges vacuum port and carefully break the vacuum with clean dry nitrogen. -
Page 46: Final Evacuation Stage
8. Verify no that there are nitrogen leaks. 9. Carefully release the nitrogen charge. Watching the gauge until it reads 1 PSIG (7 kPa). Final Evacuation Stage 1. Move the vacuum hoses back to the vacuum pump and restart the pump. 2. -
Page 47: Voltage Phase Check
• If the TXV is in the close position, use a liquid charging adapter to break the vacuum at the compressor suction and discharge Rotolock service valves with 90 PSIG (621 kPa) of liquid refrigerant. A liquid charging adapter prevents liquid refrigerant from entering the compressor. -
Page 48: Heat Exchanger Phase Check
An out of phase fixed speed scroll compressor will draw relatively low amps and both suction and discharge pressures will remain nearly equal. If necessary, reverse any two of the three input line voltage wires at the line voltage field connection point to change the compressor rotation. Units shipped from the factory are run tested to ensure the compressor rotation is consistent with evaporator fan motor. -
Page 49: Component Functional Test
Table 12 Liquid Line Multiplier for R-410A at Various Line Lengths Equivalent Feet (Meters) Liquid Line Liquid Line Nominal Size Size OD Multiplier (inches) (inches) (15.2) (30.5) (45.7) (61.0) 0.067 3.35 6.71 10.06 13.41 0.108 5.38 10.76 16.13 21.51 0.154 7.70 15.40 23.10... -
Page 50: Refrigerant Handling
This applies to all units with either shell and tube condensers or high-pressure relief valve options. Air-Cooled Split System Charging Air-cooled condensers provided with Data Aire equipment have integral fan speed controls. The fan speed control is programmed at the factory to start the fan at a specific head pressure and increase speed (i.e., airflow) when enough head pressure is developed, the fan will run at full speed. -
Page 51: Table 14 Dama Starting Charge R-410A
Table 14 DAMA Starting Charge R-410A Weight of Refrigerant in Evaporator and Condenser Evaporator Starting Condensing Unit Model Model Charge (lbs.) DAMA-01XX GHRC-011XX or DARC-03XX GHRC-018XX or DARC-05XX (Option) GHRC-025XX or DARC-07XX (Option) DAMA-1.5XX GHRC-011XX or DARC-03XX GHRC-018XX or DARC-05XX (Option) GHRC-025XX or DARC-07XX (Option) GHRC-039XX or DARC-11XX (Option) DAMA-02XX... -
Page 52: Charging The Fixed Speed Compressor
4. Next, connect the refrigerant tank to the refrigerant manifold gauge set on circuit 1 and make sure the manifold gauge set is properly purged. 5. Then from a vacuum, add the amount of refrigerant weight per the above calculations by slowly opening the high side liquid line valve on the refrigerant manifold gauge to feed liquid refrigerant through the high side. -
Page 53: Table 16 Refrigerant Charge Values
Use the Temp Setpoint under Menu B – Setpoints to force the circuit 1 compressor to start in the normal operating mode. A call for cooling can artificially be created from the controller by setting the Temp Setpoint to a value lower than the current ambient temperature in the space. Example: Existing return air temperature (RAT) is 75F (23.9C), set the controller Temperature Setpoint to 65F (18.3C). -
Page 54: Additional Oil
Additional Oil When charging is complete, add the correct amount of oil to each circuit. In installations with good oil return and line runs up to 50 ft (15 m), no additional oil is required. If installation lines exceed 50 ft (15 m), additional oil needs to be added. -
Page 55: Refrigerant Receiver
Receiver storage capacities are based on the liquid occupying no more than 90% of the internal volume when the temperature of the refrigerant is 90°F (32°C) per ASHRAE Standard 15-78. Includes within Data Aire’ Product Selector Guide, the low ambient receiver package has already sized and selected for each Ultra model size. -
Page 56: Receiver Location
Safety Relief Devices Data Aire’s low ambient receiver(s) include a suitable fusible plug safety relief device installed on the receiver housing. The fusible plug is a onetime discharge device and must be replaced in the event of a receiver over temperature condition. -
Page 57: Figure 10 Typical Low Ambient Receiver Package
Figure 10 Typical Low Ambient Receiver Package NOTES: 1. Install the Low Ambient Control (LAC) valve remote sensing bulb on a smooth flat part of the liquid line for optimal surface contact and insulate the bulb after mounting. 2. Keep the LAC away from the hot gas inlet. 3. -
Page 58: Charge Fixed Speed Compressor
Use two (2) lbs. per nominal ton and using a “liquid charging adapter” add the calculated system charge at the condenser through the liquid line and discharge line with liquid refrigerant. A “liquid charging adapter” is needed so liquid refrigerant doesn’t enter the compressor. At this point the receiver(s) are pre-charged. -
Page 59: Table 19 Packaged Units Without Receivers
nameplate. Although this figure represents the initial factory charge, it is still necessary to measure and note proper unit operation including superheat, head and suction pressure. Some adjustment of charge may be required. Adjust the refrigerant charge until the sight glass has sparse bubbles. The system should be allowed to stabilize for 15 to 20 minutes before meaningful measurements can be taken. -
Page 60: Important Refrigeration Components
Important Refrigeration Components Thermal Expansion Valve The refrigerant circuit has an adjustable Thermal Expansion Valve (TXV). The TXV is factory adjusted to their normal rating. Any field adjustment should be to “fine tune” a system that has stabilized and already has acceptable operating parameters. Adjusting a TXV to produce large swings in superheat is not recommended. -
Page 61: Liquid Line Solenoid Valve
Liquid Line Solenoid Valve The primary purpose of a solenoid valve in a refrigerant liquid line is to helps prevent refrigerant migration (i.e., flow into the evaporator) during the OFF cycle. The Liquid Line Solenoid Valve (LLVS) is a direct acting, NC (normally closed; i.e. closed when deenergized) solenoid operated valve. The advantage is the valve is closed when the system is not running and when the solenoid valve is not energized. -
Page 62: Glycol Systems
Brazed-Plate Fin Condensers Data Aire water cooled units use brazed-plate condensers as a standard. Brazed-plate condensers are constructed of plates brazed together to form an assembly of separate channels. Refrigerant is confined to the space between the welded plates and is exposed to gaskets only at the ports. -
Page 63: Water Treatment
Water Treatment If impurities are not controlled, they can cause sludge or biological fouling. Simple blowdown (discharging a small portion of the recirculating water to a drain) may be adequate to control scale and corrosion on sites with good quality makeup water, but it does not control biological contaminants such as Legionella. -
Page 64: Fluid Cooler
6.2.3.5 Corrosion Protection Stainless steel has a high resistance to most chemicals but is sensitive to chloride ion concentration so this must be limited to 280ppm or less in systems operating at less than 131°F (55°C). The copper used in the brazing process is mainly sensitive to strong acid and ammonia so the pH must be maintained between 6 and 8. -
Page 65: Type L Copper Tubing Internal Volume
Type L Copper Tubing Internal Volume Table 24 Type L Copper Tubing Internal Volume Volume per Foot Volume per 100 Feet Nominal Tubing Tubing OD Size of Tubing, of Tubing, Inches (mm) Inches (mm) Gallons (Liters) Gallons (Liters) 1/2 (12.7) 0.63 (16) 0.0121 (0.046) 1.21 (4.58) - Page 66 CAUTION: Risk of using the wrong type of glycol can cause piping damage, coolant fluid leaks, and catastrophic and expensive building and equipment damage. Do not use automotive antifreeze as it contains chemicals that can damage the piping system. Typical inhibited formula ethylene glycol and propylene glycol are supplied with corrosion inhibitors and do not contain a silicone anti-leak formula.
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Page 67: Controls
CONTROLS Programmable Thermostat The standard controller on all DAM equipment is a programmable thermostat. Installations where close environmental control is not required, a single stage cooling programmable thermostat is available. Units with either humidifiers and/or electric reheat will require an upgrade to a Mini-dap4 or Expanded dap4. -
Page 68: Regular Maintenance Items
REGULAR MAINTENANCE ITEMS Air Filters The air filter section is an integral part of the environmental control system, designed within the unit for easy front accessibility. An initial set of filters are factory installed in the unit. The filters are 2-inch (50 mm) deep, disposable, pleated design, extended surface, nonwoven, reinforced cotton fabric;... -
Page 69: Fuses
Fuses Fuses may occasionally require changing especially with installations where the voltage is not consistent. Drops in voltage can create brief periods of high amp draw, causing fuses to blow. Always replace fuses with those of the equivalent rating regarding 1) amperage, 2) voltage, and 3) speed. For instance, motors are inductive loads which require time delay fuses. -
Page 70: Ec Plenum (Plug) Fans
EC Plenum (Plug) Fans NOTICE: Electronically Commutated (EC) motors with backward curved plenum (plug) fans are a very special optional on Mini units therefore, this paragraph does not apply to the majority of Mini units. Most Mini units have motor/belt driven blower. Maintenance is not required on electronically commutated (EC) motor/plenum fan modules. -
Page 71: Ec Motor Testing
humidification will stop until the alarm is cleared. EC motors have an under-voltage protection. If the power supply voltage falls below 150 VAC/3Ø (for 230-volt motors) 290 VAC/3Ø (for 460 motors) for a minimum of five (5) seconds, the motor will automatically switch off and an alarm condition (NO AIRFLOW) will be energized and displayed. -
Page 72: Maintenance/Inspection Checklist
MAINTENANCE/INSPECTION CHECKLIST MAINTENANCE/INSPECTION CHECKLIST (NOTE: Maintenance/inspection items are monthly unless otherwise specified.) Evaporator Model No.: Evaporator Serial No.: Technician: Date: Temperature/Humidity set at: °F % RH Air Filters: Air Distribution Section ☐ Inspect and replace (if required) ☐ Check restriction of grilles and discharge louvers ☐... - Page 73 MAINTENANCE/INSPECTION CHECKLIST (NOTE: Maintenance/inspection items are monthly unless otherwise specified.) Humidifier (Steam Generator) is equipped: ☐ Inspect drain valve/trap/drain line ☐ Check for leaks (makeup water/hoses) ☐ Check humidifier canister (replace if needed) ☐ Check and clean fill strainer ☐ Check operation Record humidifier amp draw A L2 A L3...
- Page 74 MAINTENANCE/INSPECTION CHECKLIST (NOTE: Maintenance/inspection items are monthly unless otherwise specified.) Air-Cooled Condenser, Condensing Unit, (if Fluid Cooler (if applicable) applicable) ☐ Inspect coil/clean if required ☐ Inspect coil/clean if required ☐ Inspect motor/motor mounts ☐ Inspect motor/motor mounts ☐ Inspect fan blade(s) ☐...
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Page 75: Frequently Asked Questions - Faq
Question 5: Will all units operate at 50 or 60 hertz power? Answer: No. This depends on the model and options selected. Consult with Data Aire for details. Question 6: Does the unit require an electrical ground? Answer: Yes. All units require a true earth ground. -
Page 76: Mechanical Faq Section
Question 2: How much clearance around my Data Aire unit is required for servicing? Answer: Data Aire recommends a minimum of 36” on two sides of ceiling mounted units. Units with EC motor and plug fans require 40” on the front and two sides. - Page 77 Question 4: How much steam is generated by the humidifier? Can it be adjusted? Answer: The amount of steam generated depends on the model of humidifier you have in your Data Aire unit. To determine the model number, locate the product description label on the Nortec humidifier.
- Page 78 2. Poor air distribution 3. Poor refrigerant distribution 4. Improper compressor-evaporator balance 5. Evaporator oil logged 6. Flow from one TXV affecting another’s bulb * NOTE: Data Aire has ensured that TXVs are sized properly as the unit ships from the factory.
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Page 79: Contact Data Aire
Telephone: 714-921-6000 or 800-347-2473 E-mail: Service@dataaire.com Engineering@dataaire.com Sales@dataaire.com Fax: 714-921-6010 Main 714-921-6011 Engineering 714-921-6022 Parts Sales Web Site: www.dataaire.com Job/Unit Information: Data Aire Job Number: Evaporator Model Number: Evaporator Serial Number: Condenser Model Number: Condenser Serial Number: Date Installed: Installing Contractor:... - Page 80 Condensate Trap ................27 Inspection ................... 8 Condensing unit ................38 Installation........8, 9, 11, 12, 15, 18, 27, 30, 33, 36 Contact Data Aire ..............34, 79 Installing/Mounting ................15 Controls ................... 72 Inverted Trap .................. 25 Corrosion Protection ................. 64 Line Sizing ..................
- Page 81 Rigging ....................14 Outside air ..................13 Safety Relief Devices ................ 56 Short Circuit Current Rating (SCCR) .......... 76 Paperwork ..................8 Shutoff valve ................... 31 Phase check ..................47 Sight glass ..................53 Phasing ................... 52 Spare Air Filters ................68 Piping ............
- Page 82 MiniCeiling_IOM 10-2022...