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INSTALLATION INSTRUCTIONS
FEATURING INDUSTRY STANDARD R-410A REFRIGERANT:
Single Speed High Efficiency with Aluminum Coil
Two Speed High Efficiency 2-Stage with Aluminum Coil
sWARNING
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.
AIR HANDLERS
r e f r i g e r a n t
92-20521-106-00
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Related Manuals for Fujitsu FH3617TTSASN
Summary of Contents for Fujitsu FH3617TTSASN
- Page 1 INSTALLATION INSTRUCTIONS AIR HANDLERS FEATURING INDUSTRY STANDARD R-410A REFRIGERANT: r e f r i g e r a n t Single Speed High Efficiency with Aluminum Coil Two Speed High Efficiency 2-Stage with Aluminum Coil sWARNING These instructions are intended as an aid to qualified licensed service personnel for proper installation, adjustment and operation of this unit.
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Page 2: Table Of Contents
TABLE OF CONTENTS 1.0 SAFETY INFORMATION ..........3 2.0 GENERAL INFORMATION . -
Page 3: Safety Information
1.0 SAFETY INFORMATION WARNING (SEE SECTION 4.0: ELECTRICAL WIRING) Disconnect all power to unit WARNING before installing or servicing. More than one disconnect switch Duct leaks can create an unbalanced system and draw pollutants such as dirt, may be required to de-energize dust, fumes and odors into the home causing property damage. - Page 4 WARNING WARNING (SEE SECTION 12.6: MOTOR REPLACEMENT) PROPOSITION 65: This appliance con- To avoid electrical shock which can result in personal injury or death, use only the screws furnished in the motor shell mounting holds. Screws are #8-18 x tains fiberglass insulation. .25 in.
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Page 5: General Information
NOTICE Use of this air-handler during construction is not recommended. If opera- tion during construction is absolutely required, the following temporary installation requirements must be followed: Installation must comply with all Installation Instructions in this manual including the following items: •... -
Page 6: Receiving
it is important to have the proper balance between the air being supplied to each room and the air returning to the cooling and heating equipment. Proper balance and sealing of the duct system improves the efficiency of the heating and air conditioning system and improves the indoor air quality of the home by reducing the amount of airborne pollutants that enter homes from spaces where the ductwork and/or equipment is located. -
Page 7: Model Number Explanation
NOMINAL CAPACITY 18 = 18,000 BTU/H 42 = 42,000 BTU/H 24 = 24,000 BTU/H 48 = 48,000 BTU/H 30 = 30,000 BTU/H 60 = 60,000 BTU/H 36 = 36,000 BTU/H PRODUCT CATEGORY H = AIR HANDLER TRADE BRAND F = FUJITSU... -
Page 8: A Available Models
2.4A AVAILABLE MODELS AVAILABLE MODELS AT A VOLTAGE FH3617TTSASN FH3621TTSAHN FH3621TTSAMN FH4821TTSAMN FH4821TTSASN FH4824TTSASN FH6021TTSASN FH6024TTSASN AVAILABLE MODELS AT J VOLTAGE FH2417TTSJSN FH2417PTSJSN FH3617TTSJSN FH3621TTSJHN FH3621TTSJMN FH4821TTSJMN FH4821TTSJSN FH4824TTSJSN FH6021TTSJSN FH6024TTSJSN FH2421TTTJMN FH3621TTTJMN FH4824TTTJMN FH6024TTTJSN AVAILABLE MODELS AT D VOLTAGE... -
Page 9: Dimensions And Weights
2.5 DIMENSIONS & WEIGHTS FIGURE 3 NOTE: 24" CLEARANCE REQUIRED SUPPLY AIR DIMENSIONS AND WEIGHTS IN FRONT OF UNIT FOR FILTER AND COIL MAINTENANCE. HIGH VOLTAGE CONNECTION 7/8", 1 3/32", 1 31/32" DIA. KNOCK OUTS. FLANGES ARE PROVIDED ELECTRICAL CONNECTIONS MAY FOR FIELD INSTALLATION EXIT TOP OR EITHER SIDE LOW VOLTAGE CONNECTION... -
Page 10: Applications
3.0 APPLICATIONS 3.1 VERTICAL UPFLOW AND HORIZONTAL LEFT • Vertical Upflow is the factory configuration for all models (see Figure 3). • If a side return air opening is required, field fabricate a return air plenum with an open- ing large enough to supply unit and strong enough to support unit weight. •... - Page 11 FIGURE 5 ROTATING CIRCUIT BREAKER - Repeat above operation for remaining breaker(s) (if more than one is provided). - Replace single point wiring jumper bar, if it is used, on line side of breaker and tighten securely. - Double check wires and lugs to make sure all are secure and tight. Check to make sure unit wiring to circuit breaker load lugs match that shown on the unit wiring diagram.
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Page 12: Installation In An Unconditioned Space
FIGURE 6 VERTICAL DOWNFLOW & HORIZONTAL RIGHT APPLICATIONS DETAIL A ENSURE THE RETAIN- ING CHANNEL IS FULLY ENGAGED WITH THE COIL RAIL. RAILS RAILS ST-A1213-02 FIGURE 7 INDOOR COIL AND DRAIN PAN SET-UP STRAPS HORIZONTAL ADAPTER TOP AIR STOP VAPOR LINE CONNECTION AUXILIARY HORIZONTAL... -
Page 13: Installation In Mobile/Manufactured Homes
due to the temperature of the conditioned air moving through the air handler and the air circulating around the unit where it is installed. For this reason, we recommend the fol- lowing for all air handler applications, but special attention should be paid to those installed in unconditioned spaces: •... -
Page 14: Electrical Wiring
4.0 ELECTRICAL WIRING Field wiring must comply with the National Electric Code (C.E.C. in Canada) and any applicable local ordinance. WARNING Disconnect all power to unit before installing or servicing. More than one disconnect switch may be required to de-energize the equipment. Hazardous voltage can cause severe personal injury or death. -
Page 15: B Thermostat Connections
4.2B THERMOSTAT CONNECTIONS SINGLE STAGE NOTE: These low voltage application diagrams are generic. Your WIRE COLOR CODE: indoor/outdoor units may not have all the characteristics shown or may BK - BLACK G - GREEN P - PINK W - WHITE not wire exactly as shown. - Page 16 SINGLE STAGE (cont.) WIRE COLOR CODE: FIGURE 15 BK - BLACK G - GREEN P - PINK W - WHITE TYPICAL THERMOSTAT: STRAIGHT COOLING WITH ELECTRIC BR - BROWN GY - GRAY PR - PURPLE Y - YELLOW HEAT H2AC -SCREW TERMINAL GL - BLUE O - ORANGE...
- Page 17 2 STAGE UTILIZING 1 STAGE AIR-FLOW ONLY FOR SINGLE STAGE SYSTEMS FIGURE 20 FIGURE 21 2-STAGE THERMOSTAT, HEAT PUMP, ELECTRIC HEAT WITH 2-STAGE THERMOSTAT, HEAT PUMP, ELECTRIC HEAT HUMIDISTAT FOR DEHUMIDIFICATION Humidistat Humidistat Typical Heat Pump Typical Heat Pump Two-Stage Outdoor Two-Stage Outdoor...
- Page 18 2 STAGE UTILIZING 2ND STAGE AIR-FLOW ONLY FOR SINGLE STAGE SYSTEMS FIGURE 24 FIGURE 25 1-STAGE THERMOSTAT, HEAT PUMP, ELECTRIC HEAT WITH 1-STAGE THERMOSTAT, HEAT PUMP, ELECTRIC HEAT HUMIDISTAT FOR DEHUMIDIFICATION Humidistat Typical Humidistat Heat Pump Typical Heat Pump Two-Stage Outdoor Two-Stage Outdoor...
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Page 19: Grounding
4.3 GROUNDING WARNING The unit must be permanently grounded. Failure to do so can result in electri- cal shock causing personal injury or death. • Grounding may be accomplished by grounding metal conduit when installed in accor- dance with electrical codes to the unit cabinet. •... -
Page 20: Electric Heat Electrical Data
4.7A ELECTRICAL DATA – WITH ELECTRIC HEAT Single Speed Motor Installation of the UL Listed original equipment manufacturer provided heater kits listed in the following table is recommended for all auxiliary heating requirements. TYPE HEATER HEATER CIRCUIT MOTOR MINIMUM MAXIMUM SUPPLY ELEMENTS - METER... - Page 21 4.7A ELECTRICAL DATA – WITH ELECTRIC HEAT: Single Speed Motor - continued TYPE HEATER HEATER CIRCUIT MOTOR MINIMUM MAXIMUM SUPPLY ELEMENTS - METER MODEL CIRCUIT AMPS. AMPACITY CIRCUIT CIRCUIT KW PER PH/HZ SINGLE PROTECTIO Nonimal EXV/ TXV (208/240V) AMPACITY CIRCUIT &...
- Page 22 4.7A ELECTRICAL DATA – WITH ELECTRIC HEAT: Single Speed Motor - continued HEATER HEATER TYPE SUPPLY CIRCUIT MOTOR MINIMUM MAXIMUM ELEMENTS - METER MODEL CIRCUIT AMPS. AMPACITY CIRCUIT CIRCUIT KW PER PH/HZ SINGLE Nonimal EXV/ TXV (208/240V) AMPACITY PROTECTION CIRCUIT &...
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Page 23: B Electric Heat Electrical Data: (-)H2T
4.7B ELECTRICAL DATA – WITH ELECTRIC HEAT: Two Speed Motor Installation of the UL Listed original equipment manufacturer provided heater kits listed in the following table is recommended for all auxiliary heating requirements. TYPE 2 Speed Air Handler HEATER HEATER CIRCUIT MOTOR MINIMUM... - Page 24 4.7B Electrical Data – With Electric Heat: Two Speed Motor - continued TYPE 2 Speed Air Handler HEATER HEATER CIRCUIT MOTOR MINIMUM MAXIMUM SUPPLY ELEMENT METER MODEL S - KW CIRCUIT AMPS. AMPACITY CIRCUIT CIRCUIT PH/HZ SINGLE PROTECTIO Nonimal EXV/ TXV (208/240V) AMPACITY CIRCUIT...
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Page 25: C Heater Kit Supplemental Information
4.7C HEATER KIT SUPPLEMENTAL INFORMATION AIR CONDITIONING DIVISION Contractor (-)HLA-HM4821JA should “mark MARK HEATER INSTALLED/ or check” the L’APPAREIL DE CHAUFFAGE DE MARQUE A INSTALLE left column for the kit installed If a heater kit is listed both These are the Single required maxi- and Multi-... -
Page 26: Airflow Performance
5.0 AIRFLOW PERFORMANCE Airflow performance data is based on cooling performance with a coil and no filter in place. Select performance table for appropriate unit size, voltage and number of electric heaters to be used. Make sure external static applied to unit allows operation within the minimum and maximum limits shown in table below for both cooling and electric heat operation. -
Page 27: 115/208/240/480V Airflow Performance Data (-)H1T
5.2 115/208/240/480V AIRFLOW PERFORMANCE DATA – SINGLE SPEED AIR HANDLER (CONSTANT TORQUE MOTOR) CFM[L/s] Air Delivery/RPM/Watts (No Filter) Single Speed Air Handler Blower Size/ Motor Manufacturer Tonnage Motor Speed From Recommended Air Application Factory Flow Range (Min / Nonimal Motor Motor H.P. - Page 28 5.2 115/208/240/480V AIRFLOW PERFORMANCE DATA – SINGLE SPEED AIR HANDLER (CONSTANT TORQUE MOTOR) - continued Single Speed Air Handler Blower Size/ Motor CFM[L/s] Air Delivery/RPM/Watts (No Filter) Manufacturer Tonnage Motor Speed From Recommended Air Application Factory Flow Range (Min / Nonimal Motor Motor H.P.
- Page 29 5.2 115/208/240/480V AIRFLOW PERFORMANCE DATA – SINGLE SPEED AIR HANDLER (CONSTANT TORQUE MOTOR) - continued Single Speed Air Handler Blower Size/ Motor CFM[L/s] Air Delivery/RPM/Watts (No Filter) Manufacturer Tonnage Motor Speed From Recommended Air Application Factory Flow Range (Min / External Static Pressure-Inches W.C.
- Page 30 5.2 115/208/240/480V AIRFLOW PERFORMANCE DATA – SINGLE SPEED AIR HANDLER (CONSTANT TORQUE MOTOR) - continued Blower Size/ Motor X-13 Manufacturer CFM wet Delivery/filter/heatters/RPM/Watts Single Speed Air Handler Motor H.P. Speed Nominal Cooling Motor Speed From Recommended Air Flow Capacity Tons Factory Range (Min / Max) CFM External Static Pressure-Inches W.C.
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Page 31: 240V Airflow Performance Data (-)H2T
5.3 240V AIRFLOW PERFORMANCE DATA – TWO SPEED AIR HANDLER (CONSTANT TORQUE MOTOR) Nominal Blower Y1, Y2 Motor CFM Air Delivery/RPM/Watts (No Filter) Manufacturer Single Speed Air Handler Cooling Size/ Speed Speed Motor Speed From Recommended Air Flow Factory External Static Pressure-Inches W.C. Nonimal Motor Capacity... - Page 32 5.3 240V AIRFLOW PERFORMANCE DATA – TWO SPEED AIR HANDLER (CONSTANT TORQUE MOTOR) - continued Nominal Blower Y1, Y2 Motor CFM Air Delivery/RPM/Watts (No Filter) Manufacturer Single Speed Air Handler Cooling Size/ Speed Speed Motor Speed From Recommended Air Flow Factory External Static Pressure-Inches W.C.
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Page 33: Ductwork
6.0 DUCTWORK Field ductwork must comply with the National Fire Protection Association NFPA 90A, NFPA 90B and any applicable local ordinance. WARNING Do not, under any circumstances, connect return ductwork to any other heat producing device such as fireplace insert, stove, etc. Unauthorized use of such devices may result in fire, carbon monoxide poisoning, explo- sion, personal injury or property damage. -
Page 34: Orifice Size
FIGURE 28 BULB LOCATION 10 O’CLOCK 2 O’CLOCK BULB BULB VAPOR LINE FIGURE 29 BULB LOCATION 7.1.2 ORIFICE SIZE The piston model air handler comes standard with a flow check piston installed. The pis- ton may need to be changed to a different orifice size depending upon the outdoor unit. The table below lists the recommended orifice size for various outdoor units. -
Page 35: Electronic Expansion
Indoor Nominal Tons Refrigerant Piston Nominal Capacity Width ⁄ * .049 R-410A 2 TON * .057 ⁄ * .062 R-410A 3 TON * .067 ⁄ * .074 R-410A 4 Ton * .078 7.2 ELECTRONIC EXPANSION The RCF EXV equipped coils, cased and uncased, are the first Rheem indoor products to be produced with the noncommunicating, stand-alone EXV control. -
Page 36: Factory Programmed Superheat
FIGURE 31 THERMISTER LOCATION 7.4 FACTORY PROGRAMMED SUPERHEAT The stand alone EXV control is pre-programmed for 10°F superheat. The following dip switch settings must be set at the time of coil installation. 7.5 SUPERHEAT OFFSET DIP SWITCH SETTINGS Although the above superheat set point is considered to be the most efficient set point for each air handler, installation conditions can drastically effect the measurement of superheat by the air handler control. -
Page 37: Diagnostics
7.7 DIAGNOSTICS There are 2 LEDs (green/yellow) on the standalone EXV control which indicate valve movement. When the green LED is illuminated, the control is moving the valve in the open direction. When the yellow LED is illuminated, the control is moving the valve in the closed direction. -
Page 38: Exv Standalone Wiring
alternate control and housing location is approved. The mounting location will require the wiring harnesses to be disconnected from the control, the control removed from the housing and the housing mounting screws removed. The wires will need to be routed through the knockout (there is one knockout per side) and then the assembly reassem- bled externally to the coil case. -
Page 39: Condensate Drain Tubing
WIRING DIAGRAM NOTES WIRING INFORMATION Y/BL LINE VOLTAGE 1..CONNECTORS SUITABLE FOR USE WITH COPPER CONDUCTORS -FACTORY STANDARD ONLY. -FACTORY OPTION 2..LOW VOLTAGE CIRCUIT TO BE N.E.C. CLASS 2 WITH A CLASS 2 -FIELD INSTALLED TRANSFORMAER 24 VOLT, 50 OR 60 HZ. MIN 18 AWG. SUCTION LOW VOLTAGE 3.. -
Page 40: Duct Flanges
• Make provisions for disconnecting and cleaning of the primary drain line should it become necessary. Install a 3 in. trap in the primary drain line as close to the unit as possible. Make sure that the top of the trap is below connection to the drain pan to allow complete drainage of pan (See Figure 3). -
Page 41: Heating (Heat Pump)
9.3 HEATING (HEAT PUMP) • When the thermostat “calls for heat,” the circuits between R and B, R and Y and R and G are completed. Circuit R and B energizes the reversing valve (RV) switching it to the heating position (remains energized as long as selector switch is in “heat” posi- tion). -
Page 42: Calculations
10.0 CALCULATIONS 10.1 CALCULATING TEMPERATURE RISE • The formula for calculating air temperature rise for electric resistance heat is: 3.16 x Watts Temperature Rise °F = Where: 3.16 = Constant, CFM = Airflow 10.2 CALCULATING BTUH HEATING CAPACITY • The formula for calculating BTUH heating capacity for electric resistance heat is: BTUH Heating = Watts x 3.412 Where: 1 kW = 1000 Watts, 3.412 = Btuh/Watt 10.3 CALCULATING AIRFLOW CFM... -
Page 43: Maintenance
12.0 MAINTENANCE For continuing high performance, and to minimize possible equipment failure, it is essential that periodic maintenance be performed on this equipment. Consult your local dealer as to the proper frequency of maintenance and the availability of a maintenance contract IMPORTANT: Before performing any service or maintenance procedures, see the WARNING... -
Page 44: Motor Replacement
After extended use, removal of the blower assembly may become necessary for a thor- ough cleaning of the blower motor and wheel. • Mark field power supply wiring (for replacement) attached to terminal block or circuit breaker(s) on blower assembly. Remove wiring from terminal block or circuit break- er(s). -
Page 45: Blower Wheel Replacement
12.7 BLOWER WHEEL REPLACEMENT With the blower assembly removed and the motor assembly removed (see above instructions), remove the 4 screws holding the blower wrap (cutoff) to the blower sides. • With wrap (cutoff) screws removed, cut off end of blower wrap will spring up. Lifting wrap blower wheel is removed through the discharge opening in the blower housing. - Page 46 FIGURE 36 EXTERNAL FILTER BASE: RXHF- • Horizontal Adapter Kit RXHH- This horizontal adapter kit is used to convert Upflow/Downflow only models to hori- zontal flow. See the following table to order proper horizontal adapter kit. Horizontal Adapter Kit Horizontal Adapter Kit Coil Model Model Number (Single Qty.) Model Number (10-pak Qty.)
- Page 48 CM 0317...