Advertisement
Quick Links
INSTALLATION INSTRUCTIONS
FOR CASED/UNCASED COILS FOR GAS FURNACES:
(-)CFY: Featuring Industry-Standard R-454B Refrigerant
WARNING
These instructions are intended as an aid to qualified licensed
service personnel for proper installation, adjustment and
operation of this unit. Read these instructions thoroughly before
attempting installation or operation. Failure to follow these
instructions may result in improper installation, adjustment,
service or maintenance possibly resulting in fire, electrical
shock, property damage, personal injury or death.
92-100105-40-01
Advertisement
Subscribe to Our Youtube Channel
Related Manuals for Rheem RCFY2414STAAMC
Summary of Contents for Rheem RCFY2414STAAMC
- Page 1 INSTALLATION INSTRUCTIONS FOR CASED/UNCASED COILS FOR GAS FURNACES: (-)CFY: Featuring Industry-Standard R-454B Refrigerant WARNING These instructions are intended as an aid to qualified licensed service personnel for proper installation, adjustment and operation of this unit. Read these instructions thoroughly before attempting installation or operation.
-
Page 2: R-454B Best Practices
R-454B BEST PRACTICES • R-410A systems SHOULD NOT be retrofitted with R-454B. Reference Section 1.0 for more information. • Only use indoor coils approved for use on R-454B systems. An R-410A or R-22 coil has not been evaluated for use with R-454B and may lack a refrigerant detection system necessary for safe operation of the system. -
Page 3: Table Of Contents
TABLE OF CONTENTS R-454B BEST PRACTICES ................2 1.0 SAFETY INFORMATION ................4 2.0. GENERAL INFORMATION ................6 2.1 INTRODUCTION ..................2.2 IMPORTANCE OF QUALITY INSTALLATION ..........2.3 SYSTEM SIZING AND SELECTION ............2.4 CHECKING PRODUCT RECEIVED ............. 2.5 EFFICIENCY TESTING NOTICE ..............2.6 MODEL NUMBER EXPLANATION ............. -
Page 4: Safety Information
1.0 SAFETY INFORMATION knowledge, unless they have been given supervision WARNINGS: or instruction concerning use of the appliance by a • Do not use oxygen to purge lines or pressurize person responsible for their safety. Children should be supervised to ensure that they do not play with system for leak test. - Page 5 1.0 SAFETY INFORMATION our industry and other manufacturers. incompatible with the POE oil used in R-454B systems and could result in reliability issues with • Glass Wool (Fiberglass) Insulation the compressor and TXVs. • Carbon Monoxide (CO). • Refrigerant R–454B operates at pressures similar •...
-
Page 6: General Information
2.0. GENERAL INFORMATION WARNING: Improper installation, or installation not made in accordance with these instructions, can result in unsatisfactory operation and/or dangerous conditions and can cause the related warranty not to apply. 2.1 INTRODUCTION The information contained in this manual has been prepared to assist in the proper installation, operation, and maintenance of the air conditioning system. -
Page 7: Checking Product Received
IMPORTANT: Excessive use of elbows in the refrigerant line set can produce excessive pressure drop. Follow industry best practices for installa- tion. Installation and commissioning of this equipment is to be performed by trained and qualified HVAC professionals. For technical assistance, contact your Distributor Service Coordinator. -
Page 8: Model Number Explanation
2.6 MODEL NUMBER EXPLANATION FIGURE 1 MODEL NUMBER EXPLANATION Y 24 OPTION L = WITHOUT A2L SENSORS CASING C = CASED U = UNCASED** ORIENTATION M = MULTIPOSITION V = VERTICAL ONLY H = DED. HORZ. ONLY COIL SERIES A = A-COIL N = N-COIL M = MULTIFLEX S = SLAB... -
Page 9: Coil Specifications
2.7 COIL SPECIFICATIONS 2.7A COIL SPECIFICATIONS: DIMENSIONS & WEIGHTS (SEE FIGURE 2) FIGURE 2 DIMENSIONS & WEIGHTS FRONT VIEW A MINUS ONE INCH ① ” [505 mm] SECONDARY DRAIN 3/4” N.P.T. (HORIZONTAL) ” [11.1 mm] PLENUM WIDTH NOTE: FLANGES ARE PROVIDED ”... -
Page 10: B Coil Specifications: Airflow Pressure Drop
2.7B COIL SPECIFICATIONS: AIRFLOW PRESSURE DROP TABLE 1 AIRFLOW PRESSURE DROP Approx. Design Wet Coil Static Pressure Drop (Inches W.C.) [kPa] @ CFM [L/s] – (Coil Only) Coil Model Face Area Sq. Fins Per Inch / Cooling Air Flow Width Nominal Capacity (-)CFY Ft. -
Page 11: Installation
3.0 INSTALLATION 3.1 APPLICATIONS (-)CFY cased coils can be applied in upflow, downflow, horizontal right and horizontal left applications without modifications. (-)CFY uncased coils can only be applied in upflow and downflow applications as received (see Table 2 and Figure 3 and 4). For horizontal applications of uncased replacement coils, installation of a horizontal drip shield and water management parts from old coil is required or an RXHH Horizontal Adapter Kit may be used. -
Page 12: Horizontal Right
FIGURE 3 COIL INSTALLATION OPTIONS AIRFLOW AIRFLOW PRESSURE SENSITIVE GASKET HORIZONTAL LEFT HORIZONTAL RIGHT DOWNFLOW AIRFLOW UPFLOW IMPORTANT: Coil must be installed on the supply airflow side of a gas or oil furnace. FIGURE 3B COIL INSTALLATION OPTIONS WITH 45° STREET ELBOW ST-A1258-01B... -
Page 13: Horizontal Left
FIGURE 4 COIL INSTALLATION OPTIONS AIRFLOW AIRFLOW PRESSURE SENSITIVE GASKET HORIZONTAL LEFT HORIZONTAL RIGHT AIRFLOW IMPORTANT: Coil must be AIRFLOW installed on the supply airflow DOWNFLOW UPFLOW side of a gas or oil furnace. FIGURE 5 PARTS TO BE REUSED ON HORIZONTAL COILS ONLY. - Page 14 FIGURE 6A INSTALLATION OF COIL MATCHED WITH A FURNACE TWO SIZES SMALLER 6.000 MINIMUM FIGURE 6B FIGURE 7 INSTALLATION OF COIL MATCH WITH A FURNACE ONE SIZE INSTALLATION OF COIL MATCHED WITH SMALLER A FURNACE OF SMALLER SIZE DOWNFLOW OR HORIZONTAL RIGHT APPLICATION 6”...
-
Page 15: Refrigerant Connections
3.2 REFRIGERANT CONNECTIONS Keep the coil connections sealed until refrigerant connections are to be made. See the Installation Instructions for the outdoor unit for details on line sizing, tubing installation, and charging information. Coil is shipped with a low pressure (5 - 10 PSIG) charge of dry nitrogen. Evacuate the system before charging with refrigerant. -
Page 16: Quick-Reference Guide For R-454B
5 minutes after RDS has reset. RDS resets after it no longer detects refrigerant. Life expectancy of the RDS is 15 years and should be replaced at the end of life. Contact Rheem Parts Department for RDS replacement. - Page 17 WARNINGS: Failure to install the refrigerant detection system properly may result in leak detection failure and risk potential fire hazards. IMPORTANT: The installation process for the RDS varies depending on the flow configuration of the unit. It is crucial to adhere to the following instructions. The RDS is initially configured for upflow and downflow installation during man- ufacturing and can be adjusted fo r horizontal flow configurations.
-
Page 18: Part List
PART LIST: Item Part Number Quantity Primary Bracket AE-109597 01 Flange AE-109596 01 Screw 63-22153 05 Cup Point Screw 63-24368 01 Standoff (14” and 17” upflow only) AE-110038-01 Step 1: Primary Bracket Removal • • Unscrew and remove the primary bracket from the flange. Ensure the RDS wiring harness is not under tension throughout this process. - Page 19 Secure the RDS to the primary bracket using the screw provided in the parts bag (Part Number: 63 24368 01) and the screw removed in the previous step, following the hole positions shown in the below illustration. Fasten the primary bracket to the flange using the screw removed in Step 1, as shown in the below illustration. III.
-
Page 20: Txv Sensing Bulb (Txv Coils Only)
3.3.1 Installation in an Unventilated Area If the installation room areas are not compliant with the outdoor room area val- ues. Appliance shall not be installed in an area where there are potential ignition sources or a continuous open flame unless there is a flame arrest installed on flame-producing appliance. -
Page 21: Electronic Expansion Valve (Exv)
3.5 ELECTRONIC EXPANSION VALVE (EXV) EXV equipped coils have a noncommunicating, stand-alone EXV control. One of the biggest advantages of an EXV is the control can intelligently regulate the refrigerant flow based on system demands other than just vapor line tempera- ture and pressure. -
Page 22: Factory Programmed Superheat (Exv Coils Only)
FIGURE 28 THERMISTOR LOCATION FIGURE 11 VAPOR LINE THERMISTER LOCATION Install foam gasket as shown in Figures 3 and 7 here 3.7 FACTORY PROGRAMMED SUPERHEAT (EXV COILS ONLY USING RXCF-AM1 REQUIRED ON MODULATING FURNACES ONLY) The stand alone EXV control is set at the factory for 10°F superheat. The following DIP switch settings must be set at the time of coil installation, using DIP switches 2 &... -
Page 23: Exv Step Dip Switch (Exv Coils Only)
3.9 EXV STEP DIP SWITCH (EXV COILS ONLY USING RXCF-AM1) DIP switch 1 (SS) on the EXV control is factory set for a 500 step EXV (OFF position), but can be switched to the ON position for a 1600 step EXV. This DIP switch must be in the 500 step position only. -
Page 24: Exv Control Optional Mounting Locations
3.12 EXV CONTROL MOUNTING LOCATIONS The EXV control and housing can be mounted on either side of the coil casing. The wires will need to be routed through the hole on the appropiate side and then the assembly mounted externally to the side of the coil case. FIGURE 13 CONTROL INSTALLATION LOCATION ST-A1246-01_S2... -
Page 25: Condensate Drain Tubing
3.14 CONDENSATE DRAIN TUBING Consult local codes or ordinances for specific requirements. IMPORTANT: When making drain fitting connections to the drain pan, use a thin layer of Teflon paste, silicone or Teflon tape and install hand tight. IMPORTANT: When making drain fitting connections to drain pan, do not overtighten. -
Page 26: Duct Flanges
3.15 DUCT FLANGES Field-installed duct flanges (4 pieces) are shipped with units. Install duct flanges as need- ed on top or bottom of the coil casing. (See Figure 17.) 3.16 COIL END SHIELDS All uncased replacement coils will need RXCE**** sheet metal shields at the front and rear of the coil. -
Page 27: General Guidelines
tubes which can cause refrigerant leaks. Therefore, use only clean warm water for cleaning aluminum tube evaporator coils. Do not use caustic household drain cleaners or bleach in the condensate pan or near the indoor coil as they will damage the aluminum fins and tubes. 4.3 GENERAL GUIDELINES Prior to beginning work on systems containing A2L REFRIGERANTS, safety checks are necessary to ensure that the risk of ignition is minimized. -
Page 28: Repairs To Sealed Components
until it is satisfactorily dealt with. If the fault cannot be corrected immediate- ly but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all par- ties are advised. -
Page 29: Removal And Evacuation
containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. If a leak is suspected, all naked flames shall be removed/extinguished. If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut off valves) in a part of the system remote from the leak. -
Page 30: Decommissioning And Labeling
to be used are designated for the recovered refrigerant and labeled for that refrigerant (i.e. special cylinders for the recovery of refrigerant). Cylinders shall be complete with pressure-relief valve and associated shut-off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs. -
Page 31: Accessories
FIGURE 17 FIELD-INSTALLED DUCT FLANGES 5.0 ACCESSORIES 5.1 PLENUM ADAPTER ACCESSORY RXBA-AE This plenum adapter accessory is for use with the 24-1/2” wide cased indoor cooling and heat pump coils. This allows a 24-1/2 wide cased coil to be installed on a 28”... -
Page 32: Horizontal Adapter Kit Rxhh- (See Figure 18 & Table 3)
5.2 HORIZONTAL ADAPTER KIT RXHH- (See Figure 18 & Table 3) TABLE 3 This horizontal adapter kit is used to convert an upflow or downflow coil for a HORIZONTAL ADAPTER KIT horizontal application. See Table 3 to order the proper horizontal adapter kit. Horizontal Adapter Uncased Coil Model Kit Model No. -
Page 33: Uncased Coil Adapter Kit
TABLE 4 UNIT DIMENSIONS & WEIGHTS — RXBC- INDOOR COIL CASINGS Unit Weight Supply Air / Return Air Openings Width (in) Model Number Height (in) [mm] Depth (in) [mm] Ship Wt (lbs) [mm] Weight (lbs) [kg] Width (in) [mm] Depth (in) [mm] [kg] RXBC-D17AI (17 1/2) [445]... -
Page 34: Rxcf-Am1 Eev Stand Alone Control For Use With Modulating Furnace
FIGURE 21 UNCASED COIL ADAPTER KIT ASSEMBLED TABLE 5 UNCASED COIL ADAPTER KIT Uncased Coil Uncased Coil Adapter Model Number RXBA Width In. Model (-)CFY B14x20 13.1 **14 B17x20 16.6 **17 B21x20 20.1 **21 B24x20 23.6 **24 NOTE: Sliding the coil into the coil rail before attaching coil rack front. 5.5 RXCF-AM1 EEV STAND ALONE CONTROL FOR USE WITH MODULATING FURNACE... -
Page 35: Wiring Diagram - Rds Equipped Cased Coil
5.6 WIRING DIAGRAM - RDS EQUIPPED CASED COIL...
Need help?
Do you have a question about the RCFY2414STAAMC and is the answer not in the manual?
Questions and answers