Zehnder Rittling FC series Installation, Operation And Maintenance Manual Download | Manualshive

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29

Electrical
connections

The unit serial tag lists the unit
electrical characteristics such
as the required supply voltage,
motor and heater amperage and
required circuit ampacities. The
unit wiring diagram shows all
unit and field wiring. The installer
must be familiar with the wiring
diagram before beginning any
wiring as the wiring can change
from project to project.

Electrical shock can cause
personal injury or death. When
installing or servicing system,
always turn off main power to
system. There may be more than
one disconnect switch.
Thermostat “OFF” should not be
used for disconnect purposes.

All field wiring connecting to
this type of unit must by 105°F
rated copper conductor and
should be in accordance with the
National Electrical Code and any
applicable local codes. Branch
circuit fusing and electrical
disconnect means, if required,
must be furnished and installed
by others. All unit-mounted
control components and
electrical heater elements, when
furnished, are factory wired to
the junction control box located
in the electrical end pocket of
painted, finished units or on the
side of hideaway units. Remote-
mounted control components
are shipped loose for field
installation and wiring and are
to be wired in strict accordance
with the wiring diagram. Failure
to do so could result in personal
injury or damage to components
and will void the manufacturer
warranty.

All wiring connections should
be checked prior to start-up to
ensure connections have not
come loose during shipment or
installation, minimizing problems
during start-up.

The fan motor(s) should never
be controlled by any wiring or
device other than the factory
supplied switch or thermostat/
switch combination without
factory authorization.

Consult the factory wiring and
valve package diagrams when
installing a changeover switch.
The switch should always be
installed upstream of the control
valve on a pipe that will have
constant flow regardless of the
control valve position, allowing a
true water temperature reading
at all times. A bleed bypass may
be required to guarantee proper
changeover switch operation.

The applicable wiring diagram
ships with each unit and must
be strictly followed. Field
power supply wiring should be
through end pocket openings
or knockouts in the supplied
junction boxes.

All field wiring should be done
in accordance with governing
codes and ordinances. Any
modification of the unit wiring
without factory authorization will
void the warranty and nullify any
agency listings.

Zehnder Rittling assumes no
responsibility for any damages
and/or injuries from improper
field installation and/or wiring.

Electrical connections

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Summary of Contents for FC series

Page 1: ...i Cooling Fresh Air Clean Air Heating Room Fan Coils Installation Operation and Maintenance ...

Page 2: ... Electrical connections 29 Wiring diagram 30 Exposed unit touch up 35 Start up 35 Air system balancing 36 Cooling heating system 36 Water system balancing 37 Water treatment 37 EC Motor 38 Control cards 38 Controls operation 38 Normal operation maintenance 39 Replacement parts 41 Equipment start up checklist 42 IMPORTANT Submittal documentation specific to each project supersedes the general guide...

Page 3: ...models FF 200 FF 220 FS 200 FF Floor FF 200 shown FF 220 available FS Sloped FS 200 FLF 510 FLF Low profile FLF 510 FFH 450 FFH 460 FFH Floor hideaway FF 450 shown FFH 460 available FLH 520 FLH Low profile hideaway FLH 520 1 Models and arrangements ...

Page 4: ...0 Fan Coil models and airflow arrangements Wall models FW Wall FW 280 shown FW 260 and FW 270 available FFRW Fully recessed wall FFRW 340 FRW Partially recessed wall FRW 320 FW 260 FW 280 FRW 320 FFRW 340 2 ...

Page 5: ...rangements Ceiling models FC Ceiling Bottom in front out shown FFRC Fully recessed ceiling Bottom in front out shown FCH Ceiling hideaway FCHP Ceiling hideaway with plenum Back in front out shown FTHP Telescoping ceiling hide away 3 ...

Page 6: ...10 1100 1130 Low 280 330 430 520 780 950 970 Coil FPI 12 12 12 12 12 12 12 Face area ft2 0 94 1 25 1 56 2 19 2 50 2 92 3 44 Coil connections 1 2 Cu 1 2 Cu 1 2 Cu 1 2 Cu 1 2 Cu 1 2 Cu 1 2 Cu Blower Quantity 1 1 2 2 1 2 4 4 Diameter 5 7 5 7 5 7 5 7 5 7 5 7 5 7 Width 7 5 10 4 7 5 10 4 7 5 10 4 7 5 10 4 Filter Number 1 1 1 1 1 1 1 Length in 22 28 34 46 52 60 70 Width in 9 75 9 75 9 75 9 75 9 75 9 75 9...

Page 7: ... 60 0 GPM 1 8 1 9 2 5 3 6 5 1 6 0 7 6 PD ft of H2O 5 9 10 1 3 0 4 0 6 9 6 0 11 2 Heating capacity optional 1 row reheat coil MBH 11 2 11 9 17 0 25 1 31 8 36 7 47 7 GPM 1 3 1 2 1 8 2 6 3 3 3 8 5 0 PD ft of H2O 1 0 0 6 2 5 1 2 1 9 2 5 3 9 Heating capacity optional 2 row reheat coil MBH 17 6 24 6 29 8 43 9 55 6 66 0 78 7 GPM 1 8 2 5 3 1 4 5 5 7 6 8 8 1 PD ft of H2O 3 7 7 9 3 4 7 9 6 7 7 1 10 3 CFM st...

Page 8: ... 290 390 580 Medium 150 170 290 325 Low 100 120 150 220 CFM high capacity High 275 390 480 680 Medium 260 375 460 625 Low 240 350 400 520 Coil FPI 12 12 12 12 Face area ft2 1 25 1 67 2 08 2 92 Coil connections 1 2 Cu 1 2 Cu 1 2 Cu 1 2 Cu Blower Quantity 1 1 2 2 Diameter 5 7 5 7 5 7 5 7 Width 7 5 10 4 7 5 10 4 Filter Number 1 1 1 1 Length in 21 75 27 75 33 75 45 75 Width in 8 25 8 25 8 25 8 25 Thic...

Page 9: ...6 30 25 04 50 3 16 34 3 16 36 29 1 4 06 62 3 16 46 3 16 48 42 08 68 3 16 52 3 16 54 51 1 8 10 76 3 16 60 3 16 62 59 12 86 3 16 70 3 16 72 69 Dimensional data Coil E F G H J K L M 3 Row N A N A N A N A 18 9 16 3 19 7 8 4 5 8 4 Row N A N A N A N A 18 9 16 3 19 7 8 4 5 8 3 1 Row 18 7 3 4 21 3 4 4 5 16 18 9 16 3 19 7 8 4 5 8 4 1 Row 19 3 8 8 1 16 23 1 8 5 1 4 18 9 16 3 19 7 8 4 5 8 Notes 3 and 4 row c...

Page 10: ...6 3 16 60 3 16 62 59 12 86 3 16 70 3 16 72 69 Dimensional data Coil E F G H J K L M 3 Row N A N A N A N A 18 9 16 3 19 7 8 4 5 8 4 Row N A N A N A N A 18 9 16 3 19 7 8 4 5 8 3 1 Row 18 7 3 4 21 3 4 4 15 16 18 9 16 3 19 7 8 4 5 8 4 1 Row 19 3 8 8 1 16 23 1 8 5 1 4 18 9 16 3 19 7 8 4 5 8 Dimensions and data Model FS Notes 3 and 4 row coil supply and return 1 2 nominal 5 8 OD all sizes 1 row coil reh...

Page 11: ...3 44 3 16 28 3 16 25 04 50 3 16 34 3 16 29 1 4 06 62 3 16 46 3 16 42 Notes All coil connections are 1 2 nominal 5 8 OD all sizes Left hand piping connections shown right hand electrical as standard Piping hand determined when facing air outlet All listed dimensions are approximate and are subject to change without notice Modifications to the product specifications must be accepted by Zehnder Rittl...

Page 12: ... A B 02 22 5 16 16 3 16 03 28 5 16 22 3 16 04 34 5 16 28 3 16 06 46 5 16 40 3 16 Notes All coil connections are 1 2 nominal 5 8 OD all sizes Left hand piping connections shown right hand electrical as standard Piping hand determined when facing the air outlet All listed dimensions are approximate and are subject to change without notice Modifications to the product specifications must be accepted ...

Page 13: ...ply hot water Return steam 5 8 3 8 2 1 4 7 1 8 9 1 8 Dimensions and data Model FFH Dimensional data Unit size A B C D E 02 24 1 8 22 3 8 24 21 18 03 30 1 8 28 3 8 30 27 24 04 36 1 8 34 3 8 36 33 30 06 48 1 8 46 3 8 48 45 42 08 54 1 8 52 3 8 54 51 48 10 62 1 8 60 3 8 62 59 56 12 72 1 8 70 3 8 72 69 66 Dimensional data Coil F G H J 3 1 Row 19 3 16 15 7 16 4 15 16 7 3 4 4 1 Row 20 9 16 16 13 16 5 1 4...

Page 14: ... hand piping connections shown right hand electrical as standard Piping hand determined when facing the air outlet Unit length for 6 extended end pocket add 6 to dimension A All listed dimensions are approximate and are subject to change without notice Modifications to the product specifications must be accepted by Zehnder Rittling at its base office Dimensions and data Model FW Dimensional data U...

Page 15: ...16 46 3 16 48 42 65 3 16 08 68 3 16 52 3 16 54 51 1 8 71 3 16 10 76 3 16 60 3 16 62 59 79 3 16 12 86 3 16 70 3 16 72 69 89 3 16 Dimensional data Coil F G H J K L M N 3 Row N A N A N A N A 16 1 8 3 17 3 8 4 5 8 4 Row N A N A N A N A 16 1 8 3 17 3 8 4 5 8 3 1 Row 15 9 16 7 3 4 19 5 16 4 15 16 16 1 8 3 17 3 8 4 5 8 4 1 Row 16 15 16 8 1 16 20 11 16 5 1 4 16 1 8 3 17 3 8 4 5 8 Notes 3 and 4 row coil su...

Page 16: ... TOP VIEW A F BAR GRILLE BOTTOM VIEW D LOUVERED SUPPLY OPENING CENTERED FRONT VIEW LOUVERED SUPPLY A C FRONT VIEW DUCTED SUPPLY E FILTER POSITION RETURN COOLING SIDE VIEW LOUVERS SHOWN RETURN HOT WATER SUPPLY STEAM SUPPLY HOT WATER RETURN STEAM SUPPLY COOLING D LOUVERED OUTLET OPENING CENTERED Dimensional data Coil E 3 Row N A 4 Row N A 3 1 Row 22 1 8 4 1 Row 23 3 2 Row 23 4 2 Row 24 3 16 Dimensio...

Page 17: ...turn shown Back ducted return also available with filter positioned vertically All listed dimensions are approximate and are subject to change without notice Modifications to the product specifications must be accepted by Zehnder Rittling at its base office Dimensional data Unit Size A B C D F 2 33 3 8 20 17 7 8 25 3 4 22 3 39 3 8 26 23 7 8 31 3 4 28 4 45 3 8 32 29 7 8 37 3 4 34 6 57 3 8 44 41 7 8...

Page 18: ...isted dimensions are approximate and are subject to change without notice Modifications to the product specifications must be accepted by Zehnder Rittling at its base office Dimensional data Coil E 3 Row N A 4 Row N A 3 1 Row 5 3 4 4 1 Row 5 3 4 3 2 Row 4 3 4 4 2 Row 3 7 8 Dimensional data Unit Size A B C D 2 22 19 20 28 1 2 3 28 25 26 34 1 2 4 34 31 32 40 1 2 6 46 43 44 52 1 2 8 52 49 50 58 1 2 1...

Page 19: ...o available with filter positioned horizontally All listed dimensions are approximate and are subject to change without notice Modifications to the product specifications must be accepted by Zehnder Rittling at its base office Dimensional data Coil E 3 Row N A 4 Row N A 3 1 Row 21 13 16 4 1 Row 22 3 4 3 2 Row 22 3 4 4 2 Row 23 7 8 Dimensional data Unit Size A B C D 2 22 19 20 28 1 2 3 28 25 26 34 ...

Page 20: ... hand determined when facing the air outlet Filter removal from bottom through access panel All listed dimensions are approximate and are subject to change without notice Modifications to the product specifications must be accepted by Zehnder Rittling at its base office Dimensional data Unit Size A B C D F G H 2 22 19 20 28 1 2 33 7 8 25 3 4 22 3 28 25 26 34 1 2 39 7 8 31 3 4 28 4 34 31 32 40 1 2 ...

Page 21: ... data Unit size A B C D 02 38 3 16 22 3 8 24 18 5 8 03 44 3 16 28 3 8 30 18 5 8 04 50 3 16 34 3 8 36 23 5 8 06 62 3 16 46 3 8 48 23 5 8 08 68 3 16 52 3 8 54 33 5 8 10 76 3 16 60 3 8 62 33 5 8 12 86 3 16 70 3 8 72 33 5 8 Notes Damper motor always on right side when viewing unit from front side All listed dimensions are approximate and are subject to change without notice Modifications to the produc...

Page 22: ...l data Unit size A B C 02 38 3 16 22 5 16 18 5 8 03 44 3 16 28 5 16 18 5 8 04 50 3 16 34 5 16 23 5 8 06 62 3 16 46 5 16 33 5 8 Notes Damper motor always on right side when viewing unit from front side All listed dimensions are approximate and are subject to change without notice Modifications to the product specifications must be accepted by Zehnder Rittling at its base office 20 Dimensions and da...

Page 23: ...louvered inlet grille with internal bug screen 3 1 2 A Front View Weep holes 2 5 8 4 to 8 1 2 2 13 16 Side View Dimensions and data Outside air wall box Dimensional data Model A Rough opening WB 0203 24 22 1 2 x 3 WB 0406 29 27 1 2 x 3 WB 081012 39 37 1 2 x 3 21 ...

Page 24: ...urize equipment beyond specified pressures as shown on unit rating plate Always pressure test with an inert fluid such as water or dry nitrogen to avoid possible damage or injury in the event of a leak or component failure during testing Always protect adjacent flammable material when welding or soldering Use a suitable heat shield material to contain sparks or drops of solder Have a fire extingui...

Page 25: ...ration of the equipment The installation of fan coils and all associated components parts and accessories shall be in accordance with the regulations of all authorities having jurisdiction and must conform to all applicable codes It is the responsibility of the installing contractor to determine and comply with all applicable codes and regulations contractor to inspect and verify that the units sh...

Page 26: ...store or install units in corrosive environments or in locations subject to temperature or humidity extremes e g attics garages rooftops etc Corrosive conditions and high temperature or humidity can significantly reduce system performance reliability and overall service life a clean dry area of the building or in a warehouse Do not remove any equipment from its shipping package until it is needed ...

Page 27: ...hen the unit is installed level Care must be taken to ensure that the drain pan does not slope away from the drain connection Vertical units are designed to be bolted to the wall structure through the slotted wall mounting holes in the chassis used for anchoring to pre installed wall studs Horizontal units are provided with slotted ceiling mounting brackets where hanging rod and rubber in shear or...

Page 28: ...ensions Improper mounting could result in the unit falling from its position causing personal injury or even death After mounting the unit it is then ready for the various service connections such as water drain and electrical At this time it should be verified that the proper types of services are actually provided to the unit On those units requiring chilled water and or hot water the proper lin...

Page 29: ...ng tightening to prevent damage to the coil tubing Over tightening must be avoided to prevent distorting the union seal surface and destroying the union ultimately causing a leak Secure the union nut hand tight and then tighten no more than an additional 1 4 turn The inlet supply connection is marked at the appropriate coil stub out with the other coil stub out being the outlet return connection I...

Page 30: ...with re insulating piping if the installing contractor failed to establish system integrity prior to insulating All chilled water piping and valves not located over the drain pan or drip pan must be insulated to prevent damage from sweating This includes factory and field piping inside the unit cabinet The condensate drain should always be connected and piped to an acceptable disposal point For pr...

Page 31: ...wired in strict accordance with the wiring diagram Failure to do so could result in personal injury or damage to components and will void the manufacturer warranty All wiring connections should be checked prior to start up to ensure connections have not come loose during shipment or installation minimizing problems during start up The fan motor s should never be controlled by any wiring or device ...

Page 32: ...MINATION FACTORY WIRE NOT CONNECTED WIRE CONNECTION FIELD WIRED FACTORY WIRED 18AWG FACTORY WIRED 12AWG Vertical wiring schematic 120V Blower motor wiring chart Size Motor Sizes High Medium Low 02 12W Blue Red Yellow 03 12W Black Red Yellow 04 30W Black Blue Red 06 50W Black Yellow Gray 08 50W 25W Black Red Gray 10 2 50W Blue Yellow Gray 12 2 50W Black Red Gray Notes Complete the wiring in accorda...

Page 33: ...ing schematic 208V 240V 277V Blower motor wiring chart Size Motor Sizes High Medium Low 02 12W Blue Red Yellow 03 12W Black Red Yellow 04 30W Black Blue Red 06 50W Black Yellow Gray 08 50W 25W Black Red Gray 10 2 50W Blue Yellow Gray 12 2 50W Black Red Gray Notes Complete the wiring in accordance with national and local codes Wiring diagram is for typical application If other controls are specifie...

Page 34: ... QUICK CONNECT 4 CIRCUIT TERMINAL BLOCK WHITE WHITE DAMPER MOTOR BLUE BLUE BLUE RED BLACK BLACK BLACK WHITE WHITE WHITE N N L N L GND BLACK BLACK LINE L N L N LOAD BLACK L1 L1 L2 T2 T1 HEATER YELLOW BROWN BROWN TERMINATED IF NO DAMPER MOTOR OPTIONAL MANUAL MOTOR STARTER OPTIONAL DISCONNECT SWITCH OPTIONAL 3 CIRCUIT TERMINAL BLOCK 120VAC 60Hz GFCI RECEPTACLE OPTIONAL 3 SPEED SWITCH CONTROL PACKAGE ...

Page 35: ...ue med black high PSC MOTOR OPTION BLOWER MOTOR MOTOR QUICK CONNECT 4 CIRCUIT TERMINAL BLOCK DAMPER MOTOR BLUE BLUE BLUE RED RED RED RED RED RED BLACK BLACK L2 L GND GND GREEN BLACK BLACK RED RED L1 K1 K1 L N L2 YELLOW BROWN BROWN TERMINATED IF NO DAMPER MOTOR OPTIONAL DISCONNECT SWITCH OPTIONAL 3 CIRCUIT TERMINAL BLOCK 208 240VAC 60Hz 3 SPEED SWITCH CONTROL PACKAGE OPTION L M M H H Blower motor w...

Page 36: ...d low blue med black high Blower motor wiring chart Size Motor Sizes High Medium Low 02 12W Blue Red Yellow 03 12W Black Red Yellow 04 30W Black Blue Red 06 50W Black Yellow Gray 08 50W 25W Black Red Gray 10 2 50W Blue Yellow Gray 12 2 50W Black Red Gray PSC MOTOR OPTION BLOWER MOTOR MOTOR QUICK CONNECT 4 CIRCUIT TERMINAL BLOCK DAMPER MOTOR BLUE BLUE BLUE RED WHITE WHITE BLACK BLACK N N L1 L GND W...

Page 37: ...o isolate the factory finish from the quick drying touch up paint Start up general Before beginning any start up the start up personnel should take the time to familiarize themselves with the unit options accessories and control sequence to fully understand how the unit should operate properly under normal conditions All personnel should have a good working knowledge of general start up procedures...

Page 38: ... some systems may require repeated venting over time to fully eliminate air in the system Prior to the water system start up and balancing the chilled hot water system should be thoroughly flushed to clean out dirt and debris which may have accumulated in the piping during construction During this procedure all unit service valves must be in the closed position This will prevent any foreign materi...

Page 39: ...ert The system must be complete and all components must be in operating condition before beginning the water system balancing procedures Each hydronic system has different operating conditions depending on the devices and controls installed for the particular application The actual balancing technique may vary from one system to another After the proper system operation is established the appropri...

Page 40: ...ntrol card If these settings are acceptable then no further configuring is required EC motor nameplate amperage indicates the motor hardware peak amperage while the motor full load amperage FLA is limited by the motor s factory programmed operating range programmed specifically for each unit size The programmed operating range is generally only a portion of the motor hardware full potential result...

Page 41: ... or more containing sodium potassium or ammonium hydroxide are not recommended as they will aggressively corrode aluminum tubes and fins Strong ammonium hydroxide cleaners will also cause stress corrosion cracking of copper tubes Zehnder Rittling recommends completely rinsing all cleaners from the coil including cleaners identified as no rinse cleaners Residual cleaners may decompose over time pro...

Page 42: ...t is determined by the components and wiring of the unit This may vary from unit to unit Refer to the wiring diagram located in a zip lock plastic bag in the electrical control box of each unit for the actual type and number of controls provided on each unit The integrity of all electrical connections should be verified at least twice during the first year of operation Afterwards all controls shou...

Page 43: ...hould be used wherever possible to maintain unit performance it s normal operating characteristics and its safety testing agency listings Replacement parts may be purchased through the local Zehnder Rittling Sales Representative Failure to do this may result in significant property damage and void the manufacturer s warranty The manufacturer will not be responsible for any consequential damages du...

Page 44: ... valve packages n n Connect field piping to unit n n Pressure test all piping for leaks n n Install drain lines and traps as required n n Insulate all piping as required n n Install drip pan under piping as required Ductwork connections n n Install ductwork fittings and grilles as required n n Flexible duct connections at unit n n Proper supply and return grille type and size n n Control outside a...

Page 45: ...SMART IDEAS Always the best climate for ...

Page 46: ...tling 100 Rittling Boulevard Buffalo NY USA 14220 T 844 934 6337 844 ZEHNDER F 716 827 6523 sales zehnder rittling com www zehnder rittling com Zehnder Rittling August 2017 English subject to change without notice ...

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