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5.0 REFRIGERANT CONNECTIONS

Keep coil connections sealed until refrigerant connections are to be made. See outdoor
unit manual for details on line sizing, tubing installation, evacuation and charging infor-
mation.

• To install the refrigerant connections, first install the refrigerant block-off plate (locat-

ed in the Parts Bag, see Figure 10) around the refrigerant connections. Braze all fit-
tings. When refrigerant lines have cooled, insert the foam gasket (located in the parts
bag, see Figure 10) around the refrigerant lines, between the coil and the refrigerant
block-off plate.

IMPORTANT: The refrigerant block-off plate MUST be installed around the refrig-
erant connections before brazing.

• When making braze connections close to outside of cabinet, use a brazing shield to

protect cabinet paint from being damaged from torch flame.

• If the installation is in a tight location, it might be convenient to make some external

tubing connections before setting unit in place.

IMPORTANT: Install refrigerant tubing so it does not block service access to front of unit.
24 in. clearance is required for filter, coil or blower removal and service access.

5.1 FLOWCHECK PISTONS

See outdoor unit installation instructions for correct flowcheck piston sizes and proper
piston installation instructions.

• Indoor coil piston size is indicated by the digits underscored in the indoor coil model

number.

IMPORTANT: It is important that the proper piston sizes be used dependent on
indoor coil, outdoor unit combination and application.

FIGURE 10

REFRIGERANT BLOCK-OFF PLATE AND FOAM GASKET

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Содержание RBHP-17A00NH1

Страница 1: ...ions 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 ISO 9001 2008 AIR HANDLERS BHP MODELS FEATURING R 22 REFRIGERANT MODELS FEATURING EARTH FRIENDLY R 410A REFRIGERANT MODELS FEATURING ELECTRIC HEAT W...

Страница 2: ...TER 22 8 0 AIRFLOW PERFORMANCE 22 8 1 Airflow Operatng Limits 23 8 2 Airflow Performance Data 23 9 0 SEQUENCE OF OPERATION 25 9 1 Cooling cooling only or heat pump 25 9 2 Heating electric heat only 25 9 3 Heating heat pump 25 9 4 Watt Restrictor 25 9 5 Defrost Sequence 25 9 6 Emergency Heat Heating of Heat Pump 26 9 7 Room Thermostat Anticipator Setting 26 10 0 CALCULATIONS 26 10 1 Calculating Tem...

Страница 3: ...iary drain pan under the entire unit to avoid dam age to ceiling is recommended WARNING THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED LICENSED SERVICE PERSONNEL FOR PROPER INSTALLATION SET UP AND OPERA TION OF THIS UNIT READ THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING INSTALLATION OR OPERATION FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION SET UP SERVICE OR M...

Страница 4: ... TO THE COMBUSTIBLE FLOOR BASE IF NOT IT MUST BE CONNECTED TO THE UNIT SUPPLY DUCT FLANGES SUCH THAT COMBUSTIBLE FLOOR OR OTHER COMBUSTIBLE MATERIAL IS NOT EXPOSED TO THE SUPPLY AIR OPENING FROM THE DOWNFLOW UNIT EXPOSING COMBUSTIBLE NON METAL MATERIAL TO THE SUPPLY OPENING OF A DOWNFLOW UNIT CAN CAUSE A FIRE RESULT ING IN PROPERTY DAMAGE PERSONAL INJURY OR DEATH EXCEPTIONS TO DOWNFLOW WARNINGS IN...

Страница 5: ... ALL DISCONNECT SWITCHES SUPPLYING POWER TO THE AIRHANDLER MUST BE DE ENER GIZED AND LOCKED IF NOT IN SIGHT OF UNIT SO THE FIELD POWER WIRES CAN BE SAFELY REMOVED FROM THE BLOWER ASSEMBLY FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH WARNING UNITS ARE FOR DUCTED APPLICATIONS ONLY A MINIMUM OF 36 INCHES OF SUPPLY AIR PLENUM AND DUCTWORK IS REQUIRED NO SUPPLY AIR ...

Страница 6: ...ower wires control wires refrigerant tubing and condensate line where they enter the cabinet Seal the power wires on the inside where they exit conduit opening Caulking is required to prevent air leakage into and condensate from forming inside the unit control box and on electrical controls Install the unit in such a way as to allow free access to the coil filter com partment and blower control co...

Страница 7: ...or installation not made in accordance with the Underwriters Laboratory UL certification or these instructions can result in unsatisfactory operation and or dangerous conditions and are not cov ered by the unit warranty Duct leaks can create an unbalanced system and draw pollutants such as dirt dust fumes and odors into the home causing property damage Fumes and odors from toxic volatile or flamma...

Страница 8: ...stems NFPA90B Installation of warm air heating and air conditioning systems The equipment has been evaluated in accordance with the Code of Federal Regulations Chapter XX Part 3280 2 3 CLEARANCES All units are designed for 0 inches clearance to combustible material on all cabinet surfaces Some units require supply duct clearances and combustible floor bases depending on the heating kW The followin...

Страница 9: ...LASSIFICATION B BLOWER UNIT TRADEBRAND CABINET SIZE 17 17 5 21 21 0 24 24 5 25 24 5 APPLICATION H HEAT PUMP AIR HANDLER 2 4 UNIT MODEL EXPLANATION AVAILABLE MODELS FEATURING R 410A REFRIGERANT BHP 17A00NH1 BHP 17J06SH1 BHP 17J07SH1 BHP 17J11SH1 BHP 21A00NH2 BHP 21J06SH2 BHP 21J07SH2 BHP 21J11SH2 BHP 24A00NH4 BHP 24J06SH4 BHP 24J07SH4 BHP 24J11SH4 BHP 24J18SH4 BHP 25A00NH7 BHP 25J11SH7 BHP 25J18SH7...

Страница 10: ...ZE UNIT WIDTH W IN SUPPLY DUCT A IN UNIT WITH COIL MAX kw UNIT WEIGHT SHIPPING WEIGHT LBS UNIT WITHOUT COIL MAX kw 17 171 2 79 16 92 99 323 6 348 2 66 75 232 1 263 8 21 21 97 16 109 117 383 3 411 5 79 87 277 8 306 24 241 2 113 4 125 134 439 6 471 3 88 97 309 5 341 1 25 241 2 113 4 125 134 439 6 471 3 88 97 309 5 341 1 2 5 DIMENSIONS AND WEIGHTS ...

Страница 11: ...nd gasketing when unit is installed in attic applications If installed in an unconditioned space apply caulking around the power wires control wires refrigerant tubing and condensate line where they enter the cabinet Seal the power wires on the inside where they exit conduit opening Caulking is required to prevent air leakage into and condensate from forming inside the unit control box and on elec...

Страница 12: ...ir is to be ducted install duct flush with floor Use fireproof resilient gasket 1 8 to 1 4 in thick between duct unit and floor Set unit on floor over opening 2 8 VERTICAL DOWNFLOW Conversion to Vertical Downflow A vertical upflow unit may be converted to vertical downflow See Figure 3 Remove the indoor coil Install coil rails in the top of the coil box supplied Rotate unit into the downflow posit...

Страница 13: ...reaker lug Replace breaker by inserting breaker mounting tab opposite white pull tab in opening hook mounting tab over edge in opening With screwdriver or pencil pull white tab with hole away from breaker while setting that side of breaker into opening When breaker is in place release tab locking circuit break er into location in opening Repeat above operation for remaining breaker s if more than ...

Страница 14: ... AIR SUPPLY HORIZONTAL DRAIN PAN MUST BE LOCATED UNDER INDOOR COIL FAILURE TO USE THE DRAIN PAN CAN RESULT IN PROPERTY DAMAGE FIGURE 6 INDOOR COIL AND DRAIN PAN SET UP HORIZONTAL LEFT HAND AIR SUPPLY FIGURE 7 INDOOR COIL AND DRAIN PAN SET UP HORIZONTAL RIGHT HAND AIR SUPPLY I156 I156 WARNING THE FIRST 36 INCHES OF SUPPLY AIR PLENUM AND DUCTWORK MUST BE CONSTRUCTED OF SHEET METAL AS REQUIRED BY NFP...

Страница 15: ... circuit disconnect of adequate size located within sight of and readily accessible to the unit Units with factory installed circuit breaker s meet UL and CSA requirements as a ser vice disconnect and should make above requirement for a field installed branch circuit disconnect unnecessary IMPORTANT Units may be equipped with one two or three 60 amp circuit breakers These breaker s protect the int...

Страница 16: ...han 100 ft 16 AWG wire should be used Control wiring should be routed through 1 2 dia knockout near power wiring entrance on either left or right side of unit After opening selected knockout install bushing supplied in parts bag in openings If control wiring is routed through right side upflow it must be routed through extrud ed holes in lower front of blower housing behind power raceway to the le...

Страница 17: ... 29 7 33 4 38 42 40 45 BHP 24J11SH 7 5 10 0 1 60 3 3 3 Single Circuit 40 3 45 9 51 58 60 60 13 2 17 5 5 3 5 Single Circuit 67 7 77 1 85 97 90 100 BHP 24J18SH 5 3 7 0 1 60 2 3 5 Multiple Ckt 1 29 7 33 4 38 42 40 45 7 9 10 5 3 3 5 Multiple Ckt 2 39 0 43 8 48 55 50 60 BHP 25J11SH 7 5 10 0 1 60 3 3 3 Single Circuit 91 8 47 4 53 60 60 60 13 2 17 5 5 3 5 Single Circuit 69 2 78 6 87 99 90 100 BHP 25J18SH...

Страница 18: ... TYPICALTHERMOSTAT WIRING STRAIGHT COOLING WITH ELECTRIC HEAT B W2 G Y W1 B C R Air Handler Control Board Y G W2 E Heat PumpThermostat Heat Pump Outdoor Unit C R Y B C R D Y G BK BR W BL W BK BL BR R Y BL R P FIGURE 9 HEAT PUMP WITH ELECTRIC HEAT Purple Recommitted to jump W1 and W2 together for maximum temperature rise ...

Страница 19: ...lenum forms an extension of the blower housing and minimizes air expansion losses from the blower Changing the size shape or length will degrade blower performance If supply discharges directly into a larger duct or plenum as much as 1 W C static pressure will be lost If 3 feet is not possible even 6 12 or 18 inches will help IMPORTANT If an elbow is included in the plenum close to the unit it mus...

Страница 20: ...brazing When making braze connections close to outside of cabinet use a brazing shield to protect cabinet paint from being damaged from torch flame If the installation is in a tight location it might be convenient to make some external tubing connections before setting unit in place IMPORTANT Install refrigerant tubing so it does not block service access to front of unit 24 in clearance is require...

Страница 21: ...astic web covering secondary connection must be broken out if used Secondary connection is lowered by 3 8 Do not get primary and secondary con nections interchanged Removal of door knockouts required for drain connections can be made much easier with the door removed from the cabinet Install drain lines so they do not block service access to front of unit 24 in clearance is required for filter coi...

Страница 22: ...ould be installed in the return air system If a remote filter is installed it should be sized for a maximum of 300 feet min air velocity for the CFM required IMPORTANT Do not operate system without a filter A filter is required to protect the coil blower and internal parts from excessive dirt and dust See unit position figures for location of filter in unit cabinet and service panel giving access ...

Страница 23: ...8 334 223 672 317 226 3 max 4 208 240 834 393 146 809 831 150 789 372 159 754 355 164 3 max 5 208 240 946 446 179 922 435 189 902 426 193 876 413 203 843 398 206 804 380 216 773 365 221 748 353 231 696 328 240 660 311 243 none 4 115 846 399 143 821 387 148 801 378 157 766 361 162 none 5 115 964 455 167 945 446 178 914 431 181 888 419 191 861 406 196 821 387 205 787 372 210 761 359 218 726 342 220 ...

Страница 24: ...1 582 1889 891 599 1846 871 617 1805 851 626 1783 841 638 5 max 2 208 240 1831 854 393 1795 847 413 1756 828 427 1720 811 439 5 max 3 208 240 2043 964 517 2004 945 531 1985 936 553 1951 920 573 1912 901 583 1878 886 602 1857 876 619 1814 856 637 1773 836 646 1751 826 658 none 2 115 1872 883 373 1837 866 393 1798 848 407 1763 832 419 none 3 115 2075 979 497 2036 960 511 2017 951 533 1984 936 553 19...

Страница 25: ...heater circuit or may be in the control circuit controlling heater sequencer HR2 indirectly controlling two or three heater elements HE see unit wiring diagram The watt restrictor WR will restrict the amount of supplemental electric heat that can be energized dependent on the heat output of the heat pump temperature of the air leaving the indoor heat pump coil Since the heat output of the heat pum...

Страница 26: ... air circulation from the other rooms being con trolled by the thermostat It is essential that there be free air circulation at the location of the same average temperature as other rooms being controlled Movement of air should not be obstructed by furniture doors draperies etc The thermostat should not be mounted where it will be affected by drafts hot or cold water pipes or air ducts in walls ra...

Страница 27: ...turned up Is ductwork correctly sized run taped and insulat ed have all cabinet openings and wiring been sealed with caulking Is the indoor coil flowcheck piston and valve size correct Is the filter clean in place and of adequate size Is the wiring tight correct and to the wiring diagram Is the unit properly grounded and protected fuse Is the thermostat heat anticipator been set properly Is the un...

Страница 28: ...n line from the unit away from the pan and coil to clear the drain line IMPORTANT Do not use caustic household drain cleaners in the condensate pan or near the indoor coil Drain cleaners will quickly damage the indoor coil 12 3 BLOWER MOTOR AND WHEEL Inspect the blower motor and wheel for cleanliness With the system air filter in place it should be several years before it would become necessary to...

Страница 29: ...m the blower housing without disturbing the motor or blower wheel Remove both wires from the heater to be removed and remove three screws from outside of blower wrap holding heater brackets to blower wrap One screw is located under the control mounting plate and is a little difficult to get at A 1 4 box end or open end wrench should be used to remove and replace this screw With three screws remove...

Страница 30: ...and the outside of the blower wheel Re assemble the motor wiring high and low voltage plugs into the motor IMPORTANT DO NOT FORCE POWER PLUG INTO THE MOTOR CONNECTOR BACKWARDS The A C power plug to the motor has locking tabs It has been proven that by applying excessive force to the A C cable half of the connector it is possible to force the connector in backwards It will not seat and click proper...

Страница 31: ...hree phase multiple two circuit units to a single supply circuit If a factory supplied jumper bar for single supply circuit is removed from unit to make multiple supply circuits the line side of the circuit breakers must be covered with fin ger safe covers Each circuit breaker pole must be covered with a finger safe cover Finger Safe Circuit Breaker Cover Part number 45 23203 01 One is required fo...

Страница 32: ...32 CM 0316 FIGURE 13 WIRING DIAGRAM ...

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