McQuay FCVC Page 76 Installation And Maintenance Manual Download | Manualshive

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© 2006 McQuay International • www.mcquay.com • 800-432-1342

McQuay Training and Development

Now that you have made an investment in modern, efficient McQuay equipment, its care should be a high priority.
For training information on all McQuay HVAC products, please visit us at www.mcquay.com and click on training, or
call 540-248-9646 and ask for the Training Department.

Warranty

All McQuay equipment is sold pursuant to its standard terms and conditions of sale, including Limited Product
Warranty. Consult your local McQuay Representative for warranty details. Refer to Form 933-43285Y. To find your
local McQuay Representative, go to www.mcquay.com.

This document contains the most current product information as of this printing. For the most up-to-date product
information, please go to www.mcquay.com.

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Summary of Contents for FCVC

Page 1: ...Manual IM 980 1 ThinLine 3G Vertical Fan Coils Type FCVC FCVH FCVS and FCWC Vertical Design Group Applied Air Systems Part Number 910102984 Date May 2011 2011 McQuay International 200 to 1200 cfm IM...

Page 2: ...4 Cabinet Rear Extension Kit 41 Installation Instructions 41 IM 1021 Key Lock Access Door Kit 43 IM 1014 MTA B 155 Electronic Thermostats 45 Installation 45 Thermostat Operation 45 Ratings 46 Wire Lea...

Page 3: ...includes a 24 volt AC transformer and interface terminal strips No Controls with pigtail connections to the unit s fan motor wiring harness Figure 1 Nomenclature see Table 1 page 29 for complete mode...

Page 4: ...arked on submittal drawings 6 An installing contractor may find it beneficial to confer with piping sheet metal and electrical foremen before installing any unit Note Check the unit data plate for cor...

Page 5: ...aking sharp turns when making duct turns and transitions Use proportional splits turning vanes and air scoops when necessary 3 When possible construct and orient supply ductwork turns in the same dire...

Page 6: ...M included with the damper for more information 6 Position the chassis subbase against the wall where the unit is to be installed Make sure that the area under the unit is free of combustible material...

Page 7: ...ng of end compartments and or moisture dripping 5 The piping to and from the unit must be protected from outside air and freeze conditions It must be suitably insulated for condensation and for heat l...

Page 8: ...pan Field Installed Valve Piping Review General Guidelines page 7 before beginning Then carry out the following steps to install valves and piping 1 For units equipped with a secondary coil make sure...

Page 9: ...at a second set is required including a changeover switch or sensor Figure 10 Changeover switch sensor attachment If the unit does not have a factory installed valve piping package the changeover swit...

Page 10: ...d condensation McQuay recommends field insulation in the following areas to prevent potential condensate problems Supply and return water piping connections Condensate drain lines and connections Fres...

Page 11: ...ure component failure Thermostat and Controls Initial Startup Cleaning Flushing the Water System 1 Prior to first operation of any unit clean and flush the water circulating system of all construction...

Page 12: ...cient protection against extremes in temperature and or humidity and equipment performance reliability and service life may be adversely affected Venting Hydronic Coils Hydronic coils require a vent e...

Page 13: ...tion motorized fresh air damper when supplied is opened Thermostat Cycles the valve s open or closed on demand based on occupant desired level Changeover Switch With a manual switch the user selects w...

Page 14: ...ers with Digital Display For more details refer to page 51 55 or 59 Series MT158 and MT168 microprocessor based thermostat controllers combine a proportional integral control algorithm with adaptive l...

Page 15: ...A return air sensor A pipe temperature sensor for changeover from heating to cooling on two pipe systems A factory wired and installed transformer See Figure 18 for a list of connecting points to the...

Page 16: ...the fresh air damper kit The damper kit must be ordered separately For detailed installation instructions refer to page 39 which is supplied with the damper motor kit Under most control schemes the d...

Page 17: ...es The first resets automatically when the over temperature condition no longer exists The second backup switch must be reset manually Note The need to reset the manual switch may indicate that there...

Page 18: ...Filters can be removed without removing any panels See Figure 27 However if the unit is equipped with a return air grille this must first be removed to access the filter To remove the filter 1 Slide...

Page 19: ...the main condensate drain line out of the side of the chassis where it flows into the secondary drain pan 5 Disconnect the fan motor wiring harness by removing the plug where it attaches to the connec...

Page 20: ...0 9 x 6 30 0x2 2x15 2 17 3 x 0 9 x 6 43 9x2 2x15 2 22 8 x 0 9 x 6 57 9x2 2x15 2 33 8 x 0 9 x 6 85 9x2 2x15 2 39 3 x 0 9 x 6 99 8x2 2x15 2 50 2 x 0 9 x 6 127 6x2 2x15 2 61 3 x 0 9 x 6 155 7x2 2x15 2 Vo...

Page 21: ...424 GG 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 Preheat Coil Water Return CC 18 7 475 18 7 475 18 7 475 18 7 475 18 7 475 18 7 475 18 7 475 HH 1 2 30 1 2 30 1 2 30 1 2 30 1 2 30 1 2 30...

Page 22: ...16 7 424 16 7 424 16 7 424 GG 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 Preheat Coil Water Return CC 18 7 475 18 7 475 18 7 475 18 7 475 18 7 475 18 7 475 18 7 475 HH 1 2 30 1 2 30 1 2 3...

Page 23: ...1 1 28 1 1 28 1 1 28 1 1 28 1 1 28 1 1 28 Primary Coil Water Supply BB 16 7 424 16 7 424 16 7 424 16 7 424 16 7 424 16 7 424 16 7 424 GG 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 Prehea...

Page 24: ...28 1 1 28 1 1 28 1 1 28 1 1 28 1 1 28 Primary Coil Water Supply BB 16 7 424 16 7 424 16 7 424 16 7 424 16 7 424 16 7 424 16 7 424 GG 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 7 8 198 Preheat Co...

Page 25: ...m 1 7 43 mm 2 8 71 mm 3 4 86 mm 1 4 36 mm 4 9 124 mm 5 5 140 mm End View Preheat Coil Piping Return Supply End View Primary Coil Piping Front View 4 Pipe Right Hand with Opposite End Preheat y p g 4 9...

Page 26: ...ay IM 980 1 Wiring Diagrams Wiring Diagrams Figure 35 Fan Coil Wiring Diagram Typical with solid state thermostat Note All field installed conductors should have an insulation rating of 300 volts or g...

Page 27: ...y IM 980 1 27 Wiring Diagrams Figure 36 Fan Coil Wiring Diagram Typical with unit mounted three speed fan switch Note All field installed conductors should have an insulation rating of 300 volts or gr...

Page 28: ...IM 980 1 Wiring Diagrams Figure 37 Fan Coil Wiring Diagram Typical with electric heat and low voltage interface board Note All field installed conductors should have an insulation rating of 300 volts...

Page 29: ...Primary Coil Type C chilled water only W CW HW 2 pipe H hot water only S steam 12 Primary Coil Rows 2 2 row 3 3 row 4 4 row 13 Primary Coil Fins Per Inch 12 12 fins per inch 14 Primary Coil Connectio...

Page 30: ...5 kW Electric Heat 030 3 0 kW Electric Heat 040 4 0 kW Electric Heat 050 5 0 kW Electric Heat 060 6 0 kW Electric Heat 000 None 30 Not currently used YY none 31 Drain Pan Material P plastic non corro...

Page 31: ...med high remote mounted SPU SCR off proportional unit mounted SPR SCR off proportional remote mounted 47 Timed Override Y none 48 Valve Primary Coil See Table 4 49 Valve Preheat Coil See Table 4 50 Va...

Page 32: ...Length 08 8 inch Extended Length 69 Subbase 30F 3 subbase with leveling feet 30Y 3 subbase without leveling feet XXF special with leveling feet XXY special without leveling feet YYY none 70 Discharge...

Page 33: ...Extended Warranty Y none standard warranty 1 1 year Extended component warranty 30 month from shipment or 24 month from installation 2 2 year Extended component warranty 42 month from shipment or 36 m...

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Page 35: ...to the front of the chassis as shown Secure the short panel with four of the retained screws two on either side see Figure 2 Installation and Maintenance Manual IM 1121 ThinLine 3G Hideaway Unit Disch...

Page 36: ...Figure 1 Removing the Discharge Duct Collar and Front Block off Plate Figure 2 Attaching the Top Block Off Plate and Short Front Panel Front Block Off Plate Discharge Duct Collar Short Front Panel To...

Page 37: ...ning in Unit Base 3 Slide the damper box in place against the screen matching the dimples on the bottom of the damper box to the slots on the unit base see Figure 2 Figure 2 Slide the Damper Against t...

Page 38: ...is See Figure 5 Figure 5 Adjusting Damper Tension Cold Weather Operation Fan coils may experience erratic operation during cold ambient conditions with the outside air damper in the open position To o...

Page 39: ...ocate all damper motor kit components and remove from carton See Figure 1 for a component list Figure 1 Damper Motor Kit Assembly Right Hand Kit Shown Installation and Maintenance Manual IM 1028 Fresh...

Page 40: ...tor bracket to the chassis using the 10 x 1 2 sheet metal screws Note This is for preliminary positioning of the control rod 11 Now position the rod so that the set screws on both the damper coupling...

Page 41: ...nance Manual IM 1024 Cabinet Rear Extension Kit for ThinLine 3G Vertical Fan Coils and Unit Heaters Group Applied Air Systems Part Number 910102148 Date August 2009 NOTICE Installation and maintenance...

Page 42: ...Attach the Subbase Extensions to the left and right subbases on the unit using 4 screws b Attach the Left and Right Chassis Support Panels to the left and right coil panels on the fan coil unit using...

Page 43: ...2 drill bit Then separate the door from the hinge bracket Figure 2 Remove Old Door from Bracket 4 Attach the locking mechanism to the tamper proof control door See Figure 3 5 Attach the new tamperproo...

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Page 45: ...position heating and cooling outputs are off Units with a two position system switch or without a system switch must use a load transfer switch when both heating and cooling outputs are used This prev...

Page 46: ...fan relay must be used 7 Observe electrical ratings Thermostatic outputs are pilot duty only Wiring Diagrams Figure 2 Units with remote sensing capability Figure 3 Units with switches used for local...

Page 47: ...inal on Low Voltage Interface Board terminal C Connect a wire from thermostat terminal TB2 1 24VAC to the 24 V terminal connection R Connect fan speed wires from the thermostat to appropriate Low Volt...

Page 48: ...sensor 24VA XFMR LINE VOLTAGE Clg 24vac valve actuators with quick connects t Htg 24vac valve actuators with quick connects Hi Med Lo Fan motor control Room air or return air temperature sensor Clg 24...

Page 49: ...stalling valve packages Solder the appropriate inlet and outlet CW pipe connections from the valve package to the coil connections Solder the appropriate inlet and outlet HW pipe connections from the...

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Page 51: ...e operation Adjust the thermostat as necessary to complete at least one cycle Be sure the thermostat and all other equipment are functioning correctly DANGER READ THESE INSTRUCTIONS CAREFULLY BEFORE A...

Page 52: ...set point becomes effective and the display of the room temperature resumes Setback Operation Connection of the Setback Input to 24 VAC 1 will force the control into unoccupied mode see wiring diagram...

Page 53: ...operation and in the main duct system for forced air operation 3 The set point and operating mode will be retained on a loss of power 4 When using either a remote probe or pipe sensor run wiring away...

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Page 55: ...ial fire and or explosion do not use in potentially flammable or explosive atmospheres Retain these instructions for future reference You must review your application and national and local codes to e...

Page 56: ...tat operates as a heating only thermostat The cooling outputs are disabled If constructed without a mode button the thermostat operates in Auto mode subject to configuration of the 2 4 pipe jumper and...

Page 57: ...ct 1 to 5 by pressing the mode button or by pressing the UP and DOWN arrows simultaneously Adjust Value Use UP or DOWN arrow Table 3 Service Menu Functions Figure 3 Circuit Board Jumpers Table 4 Circu...

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Page 59: ...TO INSTALL OPERATE OR SERVICE THIS THERMOSTAT Failure to observe safety information and comply with instructions could result in PERSONAL INJURY DEATH AND OR PROPERTY DAMAGE To avoid electrical shock...

Page 60: ...ol 0 10 VDC 4 0 mA valves These units may include a fan switch with one or more fan speed selections Mode Button Operation OFF All thermostat outputs are off fan is still operational if connected to a...

Page 61: ...row Table 4 Service Functions Switch Closed On Open Off 1 Not Used Not Used 2 Staged Heat 3 F Diff Term 13 Aux Heat No Diff Term 13 3 F Display C Display 4 Main Sec Outputs 0 10 VOC Term 10 11 require...

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Page 63: ...www mcquay com US IM 846 MT 170 Thermostats Installation and Maintenance Manual IM 846 T170 Thermostat Group Fan Coil Part Number 910102993 Date July 2006 24 VAC 120 277 VAC 3 Speed Fan Control Conti...

Page 64: ...1 5 F C Button Operation TB170 001 5 Verifying Thermostat Operation 5 Thermostat Menu Functions 6 Menu Function Access 6 Menu Functions 6 Condensate Overflow Interrupt 6 Fan Operation 7 Standard Fan C...

Page 65: ...mbly from its base to gain access to the circuit board Figure 2 Figure 2 Circuit board WARNING BEFORE ATTEMPTING TO INSTALL OPERATE OR SERVICE THIS THERMOSTAT CAREFULLY READ THESE INSTRUCTIONS Failure...

Page 66: ...apped into the cover and is not dislodged 10 Install the cover assembly to the base pressing firmly to engage the cover locking snaps CAUTION Before applying power the voltage selection switch must be...

Page 67: ...utton Figure 4 to control operation of the fan In the ON position the fan output operates continuously In the AUTO position the output cycles with demand In the OFF position all outputs are off Note M...

Page 68: ...crease the value press the up or down arrow button 6 Set back heat When this function is selected the current temperature range adjustment the SET BACK icon and the HEAT icon appear To increase or dec...

Page 69: ...uration may be provided for minimum heating and cooling requirements Using this configuration the HEAT and COOL outputs are automatically cycled on at the heat setback limit Your thermostat may not ha...

Page 70: ...r purge cycle operation is as follows 1 The thermostat has a call for heat or cooling Note If at any time the call goes away the thermostat stops the purge cycle 2 The thermostat checks the pipe senso...

Page 71: ...for use with the SB200 001 sensor Operation In an occupied mode the thermostat operates normally and looks for a door open signal When the door opens the thermostat waits for a door close signal If th...

Page 72: ...Page 72 McQuay IM 846 Optional Occupancy Detection Equipment Operation Figure 10 Optional equipment configuration 1...

Page 73: ...oved to allow setback input Note An optional door and or window switch Figure 11 and slave sensor can be added for use with the SD200 001 sensor Operation In an occupied mode the SD200 001 occupancy s...

Page 74: ...occupancy status as well as selectable high low temperature setback form C output and a five minute door open HVAC shut off This system provides basic room setback and is ideal for control of HVAC in...

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Page 76: ...training or call 540 248 9646 and ask for the Training Department Warranty All McQuay equipment is sold pursuant to its standard terms and conditions of sale including Limited Product Warranty Consul...

Page 77: ...manual 5 Pull off the fan slide switch cap Figure 3 Note Be careful not to change the position of the switch you set in Step 2 6 Place the new thermostat cover that does not have the 3 speed switch op...

Page 78: ...2011 McQuay International 800 432 1342 www mcquay com IM 831 Page 78 Figure 3 Remove plastic fan slide switch cap Figure 4 Thermostat cover without 3 speed switch opening...

Page 79: ...ommon C connected to valve valve cycle or to the yellow wire of the speed switch fan cycle Terminal No 2 has a red wire and is normally open N O Connected to the heating red wire of the thermostat Ter...

Page 80: ...5 90 30 25 061361801 Changeover Range 65 F to 95 F 18 C to 35 C Maximum Operating Temperature Limits 220 F Fluid Temperature 125 F Ambient 104 C Fluid Temperature 52 C Ambient Agency Approval UL List...

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Page 82: ...on training or call 540 248 9646 and ask for the Training Department Warranty All McQuay equipment is sold pursuant to its standard terms and conditions of sale including Limited Product Warranty Con...

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