Daikin IM 830-6 Installation And Maintenance Manual Download Page 49

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www.DaikinApplied.com 49

IM 830-6

MicroTech Unit Electrical

Connections

WARNING

To avoid electrical shock, personal injury or death, be sure that field

wiring complies with local and national fire, safety, and electrical

codes, and voltage to the system is within the limits shown in the

job-specific drawings and unit electrical data plate(s).

WARNING

Power supply to unit must be disconnected before making field

connections. To avoid electrical shock, personal injury or death, be

sure to rigorously adhere to field wiring procedures regarding proper

lockout and tag out of components.

See

and the job-specific electrical drawings

before proceeding with field power and control wiring. See also

the wiring diagram provided on the unit ventilator right front

access panel.
Unit ventilators equipped with an optional electric heating coil

have electric heating coil power connections at right end only.

Procedure

1. Provide power supply to right end compartment to match

unit nameplate.

Use copper conductors only. Use of aluminum conductors

may result in equipment failure and overheating hazards. All

wiring in right hand compartment must be class 1.

CAUTION

2. Wire leads provided from unit ventilator electric connection

box to load side of unit power switch, (switch provided by

Daikin).

The junction box has 1"(25mm) and 2"(51mm) knockouts,

located 10-1/2"(267mm) from right end of unit.

3. Provide ground wire from grounding screw in switch

junction box to switch ground terminal.

4. Wire field power supply to line side of unit power switch.

Wire ground conductor to switch ground terminal.

5. Mount unit power switch in switch junction box and install

switch cover plate (provided).

6. On units with electric heat, the 2 pole unit power switch

is replaced by a 3 pole switch and is mounted in the

locations as shown in

Figure 103 on page 63

. (A) shows

switch location for valve control units and (B), and (C)

show location for Face & Bypass control units. (B) is for

208, 230 and 265 volt horizontal (AH) units. (C) shows

location for 460 volt horizontal (AH) units.

Figure 85: Electric Heat Unit Power Switch Locations

See Electrical Data/Motor Data and Unit Amp without

electric heat

Table 44 on page 64

See Electric Heat wiring data

Table 45 on page 64

Figure 86: MicroTech Control DDC Electric Connection Box

Located in Right End Compartment (See

page 44

for detailed

number descriptions)

MicroTech Unit Ventilator Controller (UVC)

Plug-in Communication Module Location

Local User Interface (LUI)

External Signal Connection Plugs

Electric Connection Box

7 Fuse(s)

Control Transformer

Summary of Contents for IM 830-6

Page 1: ... rate certified and tested per Air Conditioning Heating and Refrigeration Institute AHRI Standard 840 Before beginning installation please read this publication in its entirety Develop a thorough understanding before starting the installation procedure This manual is to be used as a guide Each installation is unique so only general topics are covered The order in which topics are covered may not b...

Page 2: ...nchoring The Ceiling Unit Ventilator 20 Making Piping Connections 21 Coil Connection Locations 23 Typical Valve Packages 28 Steam Modulating Valve Selection 34 Typical Piping Arrangements 35 Split Systems Guidelines 41 Making Control Connections 44 MicroTech Unit Mounted Direct Digital Control DDC Components Models AHF AHV and AHR 44 MicroTech Unit Electrical Connections 49 Digital Ready Face Bypa...

Page 3: ...D 2 3 Row CW HW 2 pipe S 6 3 Row CW E 3 4 Row CW HW 2 pipe W 7 4 Row CW F 4 5 Row CW HW 2 pipe Y 8 5 Row CW G 9 DX Z None Heating Options 7 11 12 12 3 Element Low Cap Electric Heat 67 3 Row HW 13 6 Element Low Cap Electric Heat 68 Steam Low Cap 65 1 Row HW 69 Steam High Cap 66 2 Row HW 00 None Hand Orientation 8 13 A Same Hand LH E LH Heating RH Cooling B Same Hand RH F RH Heating LH Cooling D RH ...

Page 4: ... 25 Recirculation RA Bottom Grille No RA OA Dampers 26 RA Bottom Grille OA Top Duct Collar 27 RA Bottom Grille OA Rear Duct Collar 28 RA Rear Duct Grille OA Top Duct Collar 29 RA Rear Duct Grille OA Rear Duct Collar Power Connection 12 20 G Box With Switch Color 13 21 Y Off White SKU Type 14 22 B Standard Delivery Product Style 15 23 1 1st Style Change ...

Page 5: ...ly Unitterminalsarenotdesignedtoaccept other types of conductors Failure to do so may cause damage to the equipment CAUTION Before Installing Ceiling Unit Ventilator Safety and Warning Information Personal injury hazard Wear protective gloves to avoid possible cuts and abrasions from exposed edges Avoid contact with sharp edges Make sure the lifting equipment can handle the weight of the unit safe...

Page 6: ...partially or fully recessed or completely concealed see Figure 4 Each installation should contain a properly sized louver that is designed to let in fresh air while preventing water such as rain from getting past the louver and into the unit itself A weather tight seal keeps unwanted air and moisture from entering the occupied space Follow typical installation methods for louvers VentiMatic Shutte...

Page 7: ...ough the VentiMatic shutter Figure 6 VentiMatic Shutter Assembly Note Bird screen and louver are shipped in one 1 piece Outside Louver VentiMatic Shutter Room side Relief Air Typical Discharge Air Arrangements 36 Deep Unit 750 to 1500 CFM Figure 7 Arrangement AT Unit Mounted Plenum With Front Discharge Double Deflection Grille 36 914mm Grille Finish Is Clear Anodized Aluminum 4 2 114mm Max Recess ...

Page 8: ...5 8 422mm NOTE 1 For all recessed applications full or partial it is necessary to carefully examine both the inlet air and the discharge air physical locations This must be done for each location individually and in combination with each other to ensure they are compatible with the specific installation 2 Duct collars shipped loose for field installation not by Daikn 3 It is important also to veri...

Page 9: ...re 1 Room Air Horizontal Lower Intake Knockouts Horizontal Outdoor Air Upper Intake Knockouts and Vertical Outdoor Air Intake Opening With Cover Plate Horizontal Room Air Lower Intake Knockouts Horizontal Outdoor Air Upper Intake Knockouts Vertical Outdoor Air Intake Cover Plate Perforated Insulation Vertical Outdoor Air Intake Notes 1 For all recessed applications full or partial it is necessary ...

Page 10: ... metal screws 8 x 1 1 4 screws Holes provided in channel Number of screws vary by unit size Attach angles to unit at holes nearest to the edge Horizontal Outdoor Air Upper Intake Duct Collar Installation Remove the upper knockout panel using a hammer and flat screw driver or punch Install the duct flange as shown in Figure 18 or Figure 20 on page 11 Figure 18 Horizontal Outdoor Air Top Intake Duct...

Page 11: ...tallation Remove the lower knockout panel and the upper knockout panel using a hammer and flat screw driver or punch Install the duct flanges as shown in Figure 20 Figure 20 Horizontal Room Air Lower Intake Duct Collar and Horizontal Outdoor Air Upper Intake Details Attach angles to unit at holes nearest to the edge Center duct collar angle over intake opening Use as template and drill 125 dia hol...

Page 12: ...ts to handle 100 of the total cfm to accommodate economizer or morning warm up operation NOTICE If a supply air duct with improper duct work is placed too close to the unit discharge it will result in substantial noise Avoid such forms of connections when designing ductwork where sound attenuationiscritical Figure21throughFigure23showssuggested duct considerations per SMACNA and ASHRAE Sound contr...

Page 13: ...it Discharge Acoustically Lined Insulated Ductwork to Prevent Sweating Heat Loss or Heat Gain Unit Ventilator Intake Louver Outdoor Air NOTICE CAUTION Avoid a rear outdoor return air arrangement where strong prevailing winds have a direct path into the unit ventilator outdoor air opening Strong air turbulence can cause undesirable sound levels unit operating issues and property damage Figure 24 Ou...

Page 14: ...g Louvers Louver Details Figure 25 Horizontal and Vertical Blade Louvers Without Flange see Caution below for louver blade orientation and drainage Vertical Blade Louver Horizontal Blade Louver Outside Air Outside Air Bird Screen On Side Toward Unit Bottom Figure 26 Horizontal and Vertical Blade Louvers Without Flanges With Grille or With Flange Without Grille Louver drain lip Grille Louver with w...

Page 15: ...e joint between the louver and the flashing This joint is designed to let unwanted moisture escape Figure 29 Typical Louver Installation with Flashing Louver No Caulk Ducting Wall Insulation Caulk By Others Flashing By Others CAUTION Personalinjuryhazard Wearprotectiveglovestoavoidpossiblecuts and abrasions from exposed edges Avoid contact with sharp edges See Figure 25 through Figure 35 before se...

Page 16: ...d level and plumb for proper operation If optional steel interior wall grille is furnished install as shown in Figure 33 Figure 33 Louver VentiMatic Shutter Interior Wall Grille Details Dimensions C see Table 2 on page 15 As Directed By Architect 3 4 19mm Approx 7 178mm Cement Mortar Steel Interior Wall Grille Optional See Note 3 below 125 8 314mm 3 4 19mm Approx Bird Screen Do Not Block Drain Hol...

Page 17: ... with Bird Screen See Note 1 2 14 51mm VentiMatic Shutter Assembly Center Cover 10 264mm B See Table 2 on page 15 Outside Decorative Exterior Grille Also Available See Note 2 Bird Screen not shown Notes 1 Horizontal blade wall louver shown Vertical blade wall louver also available with Ventimatic shutter 2 Optional exterior grille matches unit ventilator wall louver in material and design Mounted ...

Page 18: ... unit bottom CAUTION Figure 36 Lifting and Moving Unit with Forklift Forklift lifting location see Caution and table 4 page 16 for unit weights Install this product in accordance with good engineering practices and workmanship following these general instructions plus the job specific Daikin submittal drawings provided for specific dimensions unit arrangements controls and electrical details pipe ...

Page 19: ...ount of recess must consider location of end panel fasteners Recess flanges must not interfere with access to these fasteners Table 3 Ceiling AH General Data Unit Size H07 V07 H10 V10 H13 V13 H15 V15 H20 V20 Nominal Airflow cfm L s 750 354 1000 472 1250 590 1500 708 2000 944 Fan Data Number of Fans 2 3 4 4 4 Size inches mm Diameter 8 12 206 8 12 206 8 12 206 8 12 206 9 241 Width 8 25 210 8 25 210 ...

Page 20: ...e 18 It is the responsibility of the installer to provide mounting hardware in accordance with local codes Ensure that the unit is properly level and not twisted Use the unit mounting holes Do not attempt to suspend the unit from any other points A twisted and unlevel unit will cause poor performance due to vibration CAUTION Use an 8 foot level to ensure front to back and side to side are level Tw...

Page 21: ...to valves wiring electronics sensors etc See Figure 43 Before filling be sure to flush all piping adequately so that all debris is removed Debris can prevent proper valve operation resulting in overheating over cooling etc Provide proper insulation of supply and return piping Proper insulation helps prevent loss of unit ventilator capacity overheating of end compartment and or moisture dripping Th...

Page 22: ...is responsible for any damage that might be caused from freezing condensate In applications with an end compartment auxiliary drain pan see the installation instructions shipped with the auxiliary drain pan itself NOTICE Each unit application is unique Trapping may vary or may not be required for some applications Consideration should be given to trapping when a pressurized air system is providing...

Page 23: ...the end of the unit 3 Steam coils have a factory installed pressure equalizing valve and a 24 610mm long pressure equalizing line which terminates in a M P T fitting 4 Condensate connection is same end as coil connections but is field reversible Drain can be sloped in field 5 All dimensions are approximated Table 4 Heating Only Coil Position Combinations in Air Stream First Position in Air Stream ...

Page 24: ... Coil G 9 Table 6 DX Coil G 9 Connection Tubing Unit Series H07 V07 H10 V10 H13 V13 H15 V15 Suction Line O D mm 3 4 19 3 4 19 7 8 22 7 8 22 Liquid Line O D mm 1 4 6 35 1 4 6 35 3 8 10 3 8 10 Notes 1 All coils have the same end supply and return connections 2 All water stubs are 7 8 I D female sweat and all steam coils are 11 8 female sweat connections All coil connections terminate 9 229mm from th...

Page 25: ...d reversible Drain can be sloped in field 6 Electric heating coil power connections are right end only Junction box has 1 25mm and 2 51mm trade size knockouts 10 267mm from right end of the unit 7 All dimensions are approximated Figure 9 Chilled Water Steam Unit Cooling Coils V 5 S 6 Heating Coils 68 69 Figure 10 Chilled Water 1st Position Electric Heating Cooling Coils V 5 S 6 W 7 Heating Coil 12...

Page 26: ...oling Coils V 5 S 6 W 7 Heating Coil 12 13 Note Electric heat right hand only Chilled water left hand only Table 8 Reheat Coil Position Combinations In Air Stream Face and Bypass Valve First Position in Air Stream Second Position in Air Stream AHB AHR AHR Elec V S 5 6 65 66 67 68 69 X X W 7 65 66 X X G 9 65 66 67 68 69 X G 9 12 13 X V S W 5 6 7 12 X Note X Indicates Available One coil per position...

Page 27: ... See Table 9 for correct tubing size Table 9 DX Coil G Connection Tubing Unit Series H07 V07 H10 V10 H13 V13 H15 V15 Suction Line O D inches mm 3 4 19 3 4 19 7 8 22 7 8 22 Liquid Line O D inches mm 3 4 6 35 1 4 6 3 8 10 3 8 10 Notes 1 All coils have the same end supply and return connections 2 All water stubs are I D female sweat and all steam coils are 1 female sweat connections All coil connecti...

Page 28: ...ally closed to the coil 5 The 3 way valve is generally selected for di verting water back to the return main where a constant pump head pressure is required 6 All water coil stubs are 7 8 I D female sweat Coil connections terminate 9 229mm from the end of the unit Hot water connections may be same end as cooling coil connections but are recommended to be at opposite ends from each other When using...

Page 29: ... end The End of Cycle valve accessory must be field installed on the unit for which it was selected Figure 52 3 Way EOC Valve Dimensions Connection Cv Y 3 4 19mm FNPT 5 0 15 16 24mm Figure 53 2 Way EOC Steam Valve Dimensions Connection Cv X Y Z 1 25mm FNPT 8 0 1 47mm 1 25mm 311 16 94mm Table 11 EOC Actuator Specifications Control 2 Position Electrical 24 VAC 50 60 Hz Stroke Power Stroke 9 to 11 se...

Page 30: ...rn position Running Time Motor 95 sec Running Time Fail Safe 25 sec Ambient Humidity max 95 RH non condensing Ambient Temperature Range 22 F to 122 F 30 C to 50 C Storage Temperature Range 40 F to 176 F 40 C to 80 C Table 14 2 Way Valve Body Specifications CW HW CW HW Service chilled hot water up to 60 glycol Flow Characteristic equal percentage Controllable Flow Range 75 Body Pressure Rating psi ...

Page 31: ...Running Time Motor 95 sec Running Time Fail Safe 25 sec Ambient Humidity max 95 RH non condensing Ambient Temperature Range 22 F to 122 F 30 C to 50 C Storage Temperature Range 40 F to 176 F 40 C to 80 C Table 18 Valve Body Specifications Steam Service high temperature hot water low pressure steam up to 60 glycol Flow Characteristic A port equal percentage Controllable Flow Range 75 Body Pressure ...

Page 32: ...ion Running Time Motor 150 sec constant independent of load Running Time Fail Safe 25 sec 4 F to 122 F 20 C to 50 C 60 sec 22 F 30 C Ambient Temperature Range 22 F to 122 F 30 C to 50 C Storage Temperature Range 40 F to 176 F 40 C to 80 C Table 22 Valve Body Specifications Service high temperature hot water low pressure steam up to 60 glycol Flow Characteristic A port equal percentage Controllable...

Page 33: ...Fail Safe 25 sec Ambient Humidity max 95 RH non condensing Ambient Temperature Range 22 F to 122 F 30 C to 50 C Storage Temperature Range 40 F to 176 F 40 C to 80 C Table 26 3 Way Valve Body Specifications CW HW CW HW Service chilled hot water up to 60 glycol Flow Characteristic A port Equal percentage B port modified linear for constant flow Controllable Flow Range 75 Body Pressure Rating psi 600...

Page 34: ...ve any influence on the water flow through the coil The control system no matter how sophisticated cannot overcome this Oversized control valves can also result in hunting which will shorten the life of the valve and actuator and possibly damage the coil To correctly select the proper Chilled Water Modulating Valve 1 Determine the flow of water and the corresponding pressure drop through the coil ...

Page 35: ...As a future service consideration provide unions for removal of the unit coil and or the control valve Heating Hot Water End of Cycle Valve Piping The 2 way EOC hot water or 2 pipe Chilled Water Hot Water valve is furnished normally open to the coil When the valve is de energized off there is full flow through the coil Energizing the valve shuts off the water flow Figure 60 2 way EOC Normally Open...

Page 36: ...C 10 Modulating control valve Daikin 11 Steam check valve and pressure equalizing line Daikin 12 Float and thermostatic steam trap by Others Typical Steam Modulating Valve Piping The optional factory supplied Daikin MicroTech 2 way Modulating steam valve is furnished normally open to the coil When the valve is de energized off there is full flow through the coil Energizing the valve reduces the st...

Page 37: ...ply hose swivel connection 6 Two way steam modulating control valve Daikin 7 Vacuum breaker tube Daikin 8 Float and thermostatic steam trap by Others 9 2 way End of Cycle valve EOC Steam Coil Piping Figure 67 Face and Bypass With 2 way End of Cycle Valve Same End Drain Connection Piping Within Unit End Compartment Table 32 Descriptions for Figure 67 1 2 Shutoff valves Provided by Others 3 Supply c...

Page 38: ...ating hot water or 2 pipe CW HW valve is furnished normally open to the coil When the valve is de energized off there is full flow through the coil Energizing the valve allows a varying amount of water to bypass the coil Figure 69 3 Way Modulating Valve Control Unit Coil A AB 3 Way Modulating Valve Return Supply Union Balancing and Shutoff Valve Shutoff Valve Supply Return B Union Balancing Valve ...

Page 39: ...Figure 72 2 Way Modulating Normally Closed Chilled Water Valve Piping Table 34 Descriptions for Figure 72 1 Two way modulating control valve Daikin 2 Coil Auto air vent Daikin 3 Coil drain Daikin 4 Shutoff valves Provided by Others 5 Balancing shutoff valve s by Others 6 Supply coil connection and stub up union 7 Return coil connection and stub up union 8 Flexible hoses swivel connections Provided...

Page 40: ...t CAUTION WrapTXV valve with a quenching cloth and remove bulb from suction line to avoid valve damage while brazing Proper ventilation is required for brazing When brazing use quenching rags shields or other steps to protect unit ventilator components from overheating damage melting insulation also damage to valves wiring electronics sensors etc During brazing bleed nitrogen through the piping Us...

Page 41: ...n upon Low Refrigerant Temperature trip of T4 controls by others or ICT MicroTech evaporator air flow dissipates residual low coil surface temperatures suction pressures raised coil frosting reduced see Figure 78 on page 42 UV fans must continue to run for set time period during unoccupied mode after satisfaction of the space sensor dissipates residual low evaporator coil surface temperatures redu...

Page 42: ...erature to obtain subcooling 6 Adjust charge per condensing unit manufacturer recommendation to obtain 15 16 F subcooling Figure 77 Typical Split System Evacuation Charging Set up Liquid Line Drier Sight Glass Suction Line Service Valve Liquid Line Service Valve Outdoor Fan Compressor Gauge Bar Hoses Vacuum Pump TXV Indoor Fans Charging Cylinder Indoor Coil Outdoor Coil Low Pressure Gauge Outdoor ...

Page 43: ... 9 38 113 9 50 142 6 110 365 4 39 116 2 55 147 0 115 391 2 40 118 4 60 170 1 120 418 3 41 120 7 65 185 2 125 446 9 42 123 0 70 201 1 130 476 8 43 125 4 75 218 0 140 541 4 Table 38 Superheat Range Outdoor Ambient Indoor Coil Air Inlet Temp DB WB 50 RH 75 63 80 67 85 71 105 8 10 100 3 5 9 11 95 5 7 11 13 90 9 11 13 15 85 5 7 10 12 15 17 80 8 10 12 14 18 20 75 10 12 15 17 21 23 70 13 15 19 21 24 26 6...

Page 44: ... Supports the LonWorks SCC profile number 8500_10 3 Local User Interface LUI optional see Figure 100 on page 42 The LUI provides a unit mounted interface which indicates the current unit operating state and can be used to adjust the unit ventilator operating parameters operating mode temperature set points fan speed and occupancy mode The LUI features a 4 x 20 OLED digit display 4 keys and 2 indiv...

Page 45: ...e to vary the amount of outside air based on actual room occupancy With network applications the unit mounted sensor can be overridden by a remote sensor through the network 19 Control Valve s not shown Optional accessory valve s may be either 2 position End of Cycle AHF and AHB models or modulating AHV and AHR models to control the quantity of water through the coil Available in 2 way or 3 way co...

Page 46: ...y Mode The unit ventilator maintains the stand by mode set point temperature with the outside air damper closed The fan runs continuously unless it is configured to cycle in response to the room load Bypass Mode By depressing the Tenant Override Switch Item 4 the unit is placed back into the Occupied Mode for a predetermined time default of 120 minutes This time can be set in 1 minute increments f...

Page 47: ...d com 47 IM 830 6 MicroTech Wiring Diagram Typical Figure 83 Typical MicroTech Wiring Diagram 208V 60Hz 3Ph Note See Figure 84 on page 48 for typical MicroTech service and disconnect wiring and wiring schematic legend ...

Page 48: ...m Figure 84 Typical MicroTech Wiring Diagram Service and Disconnect 208V 60Hz 3Ph Legend Symbols Accessory or field mounted component Ground Wire nut splice Overlap point common potential wires L1 1 20 Wire link wire link ID page line ...

Page 49: ...ION 2 Wire leads provided from unit ventilator electric connection box to load side of unit power switch switch provided by Daikin The junction box has 1 25mm and 2 51mm knockouts located 10 1 2 267mm from right end of unit 3 Provide ground wire from grounding screw in switch junction box to switch ground terminal 4 Wire field power supply to line side of unit power switch Wire ground conductor to...

Page 50: ...critical for proper room temperature sensing see Figure 107 and Figure 108 The UVC is capable of using one of four remote wall mounted temperature sensors It is recommended that additional wires be pulled to compensate for potential wire breakage or future options 6 Button Digital Adustable Sensor PN 910247458 8 wires 4 Button Digital Adustable Sensor PN 910247448 6 wires The Basic Sensor with set...

Page 51: ...ugh the hole in the base plate 3 Secure the back plate to the box using the 6 32 1 2 inch mounting screws provided 4 Screw the plate firmly to the wall so the foam plate backing is compressed about 50 5 Terminate the unit according to the guidelines in the Termination section 6 Attach Cover by latching it to the top of the base rotating it down and snapping into place 7 Secure the cover by backing...

Page 52: ...erly All wiring must comply with the National Electric Code NEC and local codes Do NOT run any of this device s wiring in the same conduit as other AC power wiring Tests show that fluctu ating and inaccurate signal levels are possible when AC power wiring is present in the same conduit as the signal lines If you are experiencing any of these difficulties please contact your Daikin representative T...

Page 53: ... 2 ºF Responds when any 15 of the capillary length senses these temperatures Wired so that upon T6 cut out the outside air damper A1 closes the hot water valve opens and the 24 volt power supply to the terminal strip T6 Sig is interrupted 9 Discharge Air Temperature Sensors S2 10 K ohm NTC Negative Temperature Coefficient and 1 K ohm PTC Positive Temperature Coefficient Located on the second fan h...

Page 54: ...ust be insulated 5 Fuse FB wire 56 57 furnished on 208 230 volt units only 6 1K thermistor is positive temperature coefficient 10K thermistor is negative temperature coefficient 7 Actuators 24VAC for 2 to 10 VDC control input For a 4 to 20 mA input control signal add a 500 Ohm resistor across WHT and BLK Output signal of 2 to 10 VDC for position feedback 8 Cord furnished on right hand connections ...

Page 55: ...ations A 10 K ohm Negative Temperature Coefficient NTC sensor and a 1 K ohm Positive Temperature Coefficient sensor is provided for the discharge air outdoor air and room air temperature measurement They are located next to each other in the air stream as shown in Figure 91 on page 53 Each is wired to the terminal strip separately so that the Automatic Temperature Control contractor may select the...

Page 56: ...power connections at right end only Procedure 1 Provide power supply to right end compartment to match unit nameplate Usecopperconductorsonly Useofaluminumconductorsmayresult in equipment failure and overheating hazards All wiring in right hand compartment must be class 1 CAUTION 2 Wire leads provided from unit ventilator electric connection box to load side of unit power switch switch provided by...

Page 57: ...ctory installed Low Air Temperature limit T6 freezestat across leaving air side of hydronic heating coil Cuts out below 38 F 2 F and automatically resets above 45 F 2 F Responds when any 15 of the capillary length senses these temperatures CAUTION ItistheresponsibilityoftheAutomaticTemperatureControlsupplierto checkthattheT6freezestatisincorporatedproperlytoprotecttheunit 5 Low Refrigerant Tempera...

Page 58: ...ontrol Connections For field provided control wiring connections refer to the appropriate control wiring schematic Figure 99 on page 60 or Figure 98 on page 59 Connect the field supplied controller to the harness provided A 0 10VDC fan control signal must be provided between ground and wire 33 For RPM data out signal connect controller to wire 34 The variable fan speed scale is linear between a mi...

Page 59: ...re controls operate correctly and protect the unit 3 Cap all unused transformer leads 4 X3 unused terminal 2 or 3 must be insulated 5 Fuse FB wire 56 57 furnished on 208 230 volt units only 6 1K thermistor is positive temperature coefficient 10K thermistor is negative temperature coefficient 7 Actuators 24VAC for 2 to 10 VDC control input For a 4 to 20 mA input control signal add a 500 Ohm resisto...

Page 60: ...FB wire 56 furnished on 208 230 volt units only 4 T6 wires 550 551 furnished only on units with hot water or chilled water all others connect transformer wire to wire 501 6 Jumper wire A must be connected to pins 1 2 for 120V only 7 Automatic temperature control can be wired to TB DX for DX cooling operation Typical operation is to wire from the TB DX to a normally open relay with the relay closin...

Page 61: ...hilled water all others connect transformer wire to wire 501 5 SW2 contacts 5 6 and 7 8 open only when SW2 is in OFF position 6 Jumper wire A must be connected to pins 1 2 for 120V only 7 Automatic temperature control can be wired to TB DE for DE cooling operation Typical operation is to wire from the TB DE to a normally open relay with the relay closing on control call for cooling 8 Motors are fa...

Page 62: ...ded from unit ventilator electric connection box to load side of unit power switch switch provided by Daikin The junction box has 1 25mm and 2 51mm knockouts located 10 1 2 267mm from right end of unit 3 Provide ground wire from grounding screw in switch junction box to switch ground terminal 4 Wire field power supply to line side of unit power switch Wire ground conductor to switch ground termina...

Page 63: ... cfm is on a different schematic 8 OH2 supplied on ceiling units connect wire 515 to OH1 on AV floor units 9 Automatic temperature control can be wired to TB DE for DE cooling operation Typical operation is to wire from the TB DE to a normally open relay with the relay closing on control call for cooling For additonal information contact Daikin Applied applications 10 Motors are factory programmed...

Page 64: ...13 1500 H15 V15 2000 H20 V20 Number of Electric Elements 3 6 3 6 3 6 3 6 3 6 kW 6 12 8 16 10 20 12 24 12 24 MBh 20 5 41 27 3 54 6 34 1 68 3 41 81 9 41 81 9 Final Air Temp F 70 F EAT 95 2 120 3 95 2 120 3 95 2 120 3 95 2 120 3 88 9 107 7 Air Temp Rise 25 2 50 3 25 2 50 3 25 2 50 3 25 2 50 3 18 9 37 7 208 60 1 Electric Heating Amps 28 9 57 7 38 5 76 9 48 1 96 2 57 7 115 4 57 7 115 4 Unit Minimum Cir...

Page 65: ... motormanufacturerrecommendsnotoilingthefanmotor Start up Procedure 1 After the unit ventilator has been properly installed activate unit electrical power and applicable chilled water hot water steam refrigerant systems 2 Using the applicable control activate the unit ventilator Depending on the operating mode selected the dampers fans and other components should operate as needed 3 Run the unit v...

Page 66: ...g unit ventilator Attach each end panel to the unit ventilator using the allen wrench provided Figure 109 Figure 109 Install End Panels 1 End Panel Shown Tinnerman Clips End Panel Complete Check Test and Start Procedure Included in the shipping envelope in the end compartment of the unit Provide completed Check Test and Start procedure to local Daikin representative and to specifying engineer to v...

Page 67: ...www DaikinApplied com 67 IM 830 6 ...

Page 68: ...andard terms and conditions of sale including Limited Product Warranty Consult your local Daikin Applied representative for warranty details Refer to Form 933 430285Y To find your local Daikin Applied representative go to www DaikinApplied com Aftermarket Services To find your local parts office visit www DaikinApplied com or call 800 37PARTS 800 377 2787 To find your local service office visit ww...

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