Page 1: Table Of Contents
INSTALLATION GUIDE CA SERIES - UNCASED UPFLOW/DOWNFLOW COILS CC SERIES - CASED UPFLOW/DOWNFLOW COILS CC SERIES – LIGHT COMMERCIAL CASED UPFLOW COILS CE SERIES - CASED MULTI-POSITION COILS CM SERIES - UNCASED DOWNFLOW COILS Contents 1. Important Safety Instructions 2. Inspection 3.
Page 2: Important Safety Instructions
1. Important Safety Instruction This appliance is not intended for use at altitudes exceeding 2,000 meters. Potential safety hazards are alerted using the following symbols. The symbol is used in conjunction with terms that indicate the 2. Inspection intensity of the hazard. It is the responsibility of the owner and the On receiving the product, visually inspect it for any major ship- installer to read and comply with the safety information and the ping related damages.
Page 3: Condensate Drain Preparation
Pipe-work including piping material, pipe routing, and installa- at the time of the installation; Aspen bears no responsibility for tion shall include protection from physical damage in operation damages caused by improper condensate management.
Page 4: Vertical Upflow/Downflow Installation
Due to higher designed radiant heat, a field CAUTION fabricated 6.0” spacer (placed between the furnace exit and the inlet of the evapora tor) should be installed when matching up an Aspen coil with an ultra-low NOx (ULN) furnace. - 4 -...
Page 5: Suction Line Connection
This marking must be removed prior to brazing and shall be replaced after brazing. Aspen coils are available with two kinds of metering devices a) flowrator or b) TXV. The following instructions are separated into sections by metering device.
Page 6: Piston Replacement
II. Piston Replacement II-5. Pull the piston out using NOTE: Photos are for basic illustration / reference purposes only. a small wire or pick. Verify Actual equipment configuration may differ from that shown. the piston size (size is typically stamped on the body of the piston - Fig 7A-2).
Page 7 The valves should be sized according to If the TXV sensing bulb is mounted CAUTION the capacity of the outdoor unit. Failure vertically; the capillary MUST be directed CAUTION to install the right valve can lead to poor upwards. The bulb must be mounted on performance and possible compressor the wall opposite to that being directly damage.
Page 8: Leak Check
III-11. Remove the valve identification sticker from the valve and NOTICE made refrigerant joints shall have a sensi- place it adjacent to the Aspen model number on unit name plate. tivity of 5 grams per year of refrigerant or at least 25 times the maximum allowable III-12a.
Page 9: Coil Cleaning Instructions
POTENTIAL IGNITION SOURCE shall not those recommended by the manufacture. be installed in the duct work. Examples of Aspen cased coils are equipped with a two-piece panel door to such POTENTIAL IGNITION SOURCES are hot surfaces with a temperature exceeding 700°C and electric allow for cleaning and maintenance access.
Page 10: Checks To The Work Area & Work Procedure
12.1.1 Qualification of workers CONTINUED - The ventilation machinery and outlets are operating adequately and are not obstructed; Only technicians with training carried out by national training - Marking to the equipment continues to be visible and organizations or manufacturers that are accredited to teach the legible.
Page 11: Removal And Evacuation
calibrated to the refrigerant employed, and the appropriate per- is recommended good practice that all refrigerants are recovered centage of gas (15 % maximum) is confirmed. safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of Leak detection fluids such as the bubble method is also suitable recovered refrigerant.
Page 12: Rds Sensor, Mitigation Control, And Wiring
If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that flammable refrigerant does not remain within the lubricant. The compressor body shall not be heated by an open flame or oth- er ignition sources to accelerate this process.
Page 13: Rds Installation Of Sensor, Mitigation Control, And Wiring
The Mitigation Control Board is an add-on control module that Minimum Mitigation Airflow for R454B Systems provides refrigerant leak detection and mitigation response for (Table 12.2 D) systems utilizing A2L-type refrigerants. The Mitigation Control Board can monitor up to two A2L Sensors, depending on the sys- Total Total Total...
Page 14 : The mitigation system is required to be installed INSTALLATION in the field by an A2L-trained HVAC contractor at the time of installation following these steps: Slide the uncased coil into the field provided coil casing. 12.3.1 Slide the red discs (one for the liquid and suction line each) over the field piping and away from the brazing area.
Page 15 b. Once the sensor is disconnected, wait 15 seconds. When the mitigation control board no longer detects the sensor, verify that the STATUS LED blinks fault code for communication fault (2 blinks). The mitiga- tion sequence begins: The mitigation control board will provide a system Fig 12.8 B response which will deactivate the compressor and energize the indoor blower.
Page 16: Wiring Diagrams
13. Wiring Diagrams Standard A2L Mitigation Kit Wiring Diagram Fig 13.1 NOTE: Wiring Diagram is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. Fig 13.2 NOTE: Wiring Diagram is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
Page 17 13. Wiring Diagrams CONTINUED A2L Mitigation + Accessory Kit Wiring Diagram Fig 13.3 NOTE: Wiring Diagram is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. Fig 13.4 NOTE: Wiring Diagram is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
Page 18 373 Atascocita Rd. Humble, TX 77396 Phone: 281.441.6500 Toll Free: 800.423.9007 Fax: 281.441.6510 www.aspenmfg.com Revised 08-2024. Subject to change without notice and without incurring obligation. © Copyright 2024 Aspen Manufacturing. All Rights Reserved CA CC CE CM IO-2024-11 - 18 -...

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