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IM 986-11 • Vertical Stack WSHP 57 www.DaikinApplied.com

roubleshooting

Typical Refrigeration Cycles

Figure 58: Cooling mode – (single circuit only shown)

Return Air

Reversing Valve

Conditioned Air – (Cooling)

Thermal

Expansion Valve

Co-Axial Heat

Exchanger

Blower

Coil – Air to Refrigerant

Heat Exchanger

Water In

Water Out

Sensing Bulb and

Capillary Tube

Compressor

Cooling Refrigeration Cycle

When the wall thermostat is calling for COOLING, the reversing valve directs the flow of the refrigerant, a hot gas, leaving the com

pressor to the water-to-refrigerant heat exchanger. Here the heat is removed by the water and the hot gas condenses to become

a liquid. The liquid then flows through a thermal expansion metering system to the air-to-refrigerant heat exchanger coil. The liquid

then evaporates becoming a gas, at the same time absorbing heat and cooling the air passing over the surfaces of the coil. The re-

frigerant then flows as a low pressure gas through the reversing valve and back to the suction side of the compressor to complete

the cycle.

Figure 59: Heating mode – (single circuit only shown)

Return Air

Thermal

Expansion Valve

Co-Axial Heat

Exchanger

Reversing Valve

Conditioned Air – (Heating)

Blower

Water In
Water Out

Sensing Bulb

and Capillary Tube

Compressor

Coil – Air to Refrigerant

Heat Exchanger

Heating Refrigeration Cycle

When the wall thermostat is calling for HEATING, the reversing valve directs the flow of the refrigerant, a hot gas, leaving the

compressor to the air-to-refrigerant heat exchanger coil. Here the heat is removed by the air passing over the surfaces of the coil

and the hot gas condenses to become a liquid. The liquid then flows through a capillary thermal expansion metering system to the

water-to-refrigerant heat exchanger. The liquid then evaporates becoming a gas, at the same time absorbing heat and cooling the

water. The refrigerant then flows as a low pressure gas through the reversing valve and back to the suction side of the compressor

to complete the cycle.

Содержание VHF

Страница 1: ...11 Group WSHP Part Number 910258818 Date December 2018 Vertical Stack Water Source Heat Pumps Model VHF Cabinet Model VHC Chassis Standard Range Model VHW Chassis Geothermal Range Unit Sizes 009 036...

Страница 2: ......

Страница 3: ...From Riser Stub Outs 28 Important When Handling Chassis 28 Installing Unit Chassis 28 Making Cabinet to Chassis Wiring Connections 29 Installing the Optional Remote Control Node RCN For Use With The O...

Страница 4: ...ized 1 2 Iso Valve High Close Off Pressure N C Normally Closed D 2 Way Motorized 3 4 Iso Valve General Close Off Pressure N C Normally Closed K 2 Way Motorized 3 4 Iso Valve General Close Off Pressure...

Страница 5: ...96 Cabinet Height Cabinet Insulation 20 33 34 AY Standard 1 2 Fiberglass EY 3 8 Closed Cell Foam IAQ FY 1 2 Foil Faced YY None Riser Mounting 21 35 F Factory Supplied Shipped with Cabinet for Field I...

Страница 6: ...aging has been tested and certified in accordance with the International Safe Transit Association ISTA test procedure 3B Chassis 4 per skid Do not stack over two skid high at any time during transport...

Страница 7: ...ermostat control capability They are installed by stacking one unit on top of the other While installing prevent dirt and other foreign matter from entering the risers and plug ging lines or valves Ge...

Страница 8: ...de of the cabinet Figure 3 4 Remove the ten 10 screws and lift off the front panel filter rack to gain access to the cabinet interior Figure 4 5 Locate and remove the six 6 screws located inside the c...

Страница 9: ...92 96 18 07 18 11 37 50 0 88 58 09 2 38 3 125 2 0 2 0 6 72 12 4 7 9 3 3 3 0 3 0 3 3 4 5 4 5 Discharge Openings Dimensions in inches Unit Size Single Double Triple Single Top Opening 009 012 W H W H W...

Страница 10: ...U V 80 88 92 96 18 07 20 00 37 50 0 88 58 09 2 38 3 125 2 0 3 0 6 72 12 4 7 9 3 3 4 0 3 0 3 12 4 5 4 5 Discharge Openings Dimensions in inches Unit Size Single Double Triple Single Top Opening 015 018...

Страница 11: ...7 50 0 88 58 08 2 38 4 54 2 0 3 0 6 72 12 13 7 63 3 13 3 09 3 10 3 12 4 5 4 5 Discharge Openings Dimensions in inches Unit Size Single Double Triple Single Top Opening 021 024 W H W H W H W H NR NR 18...

Страница 12: ...ctions are made in accordance with local code WARNING The contractor shall cover the units to protect the machines during finishing of the building This is critical while spraying fireproofing materia...

Страница 13: ...10 Closed plenum field modification required Figure 11 Side top discharge see Notice on page 12 Figure 12 Double side top discharge see Notice on page 12 Figure 13 Top discharge see Notice on page 14...

Страница 14: ...CE Top air discharge units will require turning vanes and or a volume damper for proper air flow and balancing to minimize turbulence These components must be field installed and furnished in accordan...

Страница 15: ...J 3 125 K3 3 125 Min Max Table 3 Letter dimensions for Figure 15 18 x 20 unit Dimension Framing Locations 18 20 Unit Sizes 015 018 Unit Height A 80 88 92 96 B 14 C 2 07 D 5 75 E1 22 25 F 58 75 G2 60 7...

Страница 16: ...page 33 for details Note It is the responsibility of the installing contractor to install the ductwork that connects the outdoor air opening in the panel door frame to the source of the outdoor intake...

Страница 17: ...t Return Air 3 Table 5 Letter dimensions for Figure 17 18 x 18 unit Dimension Riser Stub Outs Locations 18 18 Unit Sizes 009 012 Unit Height 80 88 92 96 L 3 3 M 7 9 N 12 4 Table 6 Letter dimensions fo...

Страница 18: ...st compress and seal completely against the outer edge of the cabinet and around the inner front panel and filter bracket Refer to Installing The Return Air Panel Door on page 32 and Figure 15 on page...

Страница 19: ...l Dimension Notice to determine the correct recess depth from the front of the unit to the drywall face When the installation is complete the return air grille panel frame must meet to seal with the c...

Страница 20: ...ontraction 6 Solder all supply and return riser connections to units above and or below 7 Remove riser ties used to secure the risers to the cabinet during shipping WARNING Before furring in units hyd...

Страница 21: ...t the temperature rise through the heat exchanger does not exceed 10 F when operating in the cooling mode Not exceed 4 GPM per nominal ton Flow rates that have velocities of 10 feet per second or more...

Страница 22: ...it should be off and the supplementary heat control set at 80 F 27 C While circulating water the contractor should check and repair any leaks in the unit and surrounding piping Drains at the lowest po...

Страница 23: ...29 C 22 C 80 F 27 C Minimum CFM Ton 300 Maximum CFM Ton 450 Table 11 Fluid limits Fluid Limits Standard Range Units Geothermal Range Units Cooling Heating Cooling Heating Minimum Entering Fluid 55 F 1...

Страница 24: ...Supply electric wiring from building to unit Flexible Metal Conduit Strain Relief field provided 1 2 Knockout for Supply Wiring Figure 25 Wire to unit switch 2 If a remote wall mounted thermostat is b...

Страница 25: ...Y1 G C R A W1 Y2 Y1 G C RH RC W2 G2 A G2 MicroTech III Controller Terminals TB2 Programmable Touch Screen Terminal Strip Notes Includes thermostat and wall plate Refer to IO manual 910193093 Non Progr...

Страница 26: ...r 910121748 When remote reset of a lockout condition is re quired at the wall thermostat it will be necessary to utilize a conductor between terminal O on the wall thermostat to TB1 terminal 4 on the...

Страница 27: ...perature Sensor Adjustable Cool Warm With Occupancy Switch P N 910121753 1 2 4 E U 5 3 2 MicroTech III Controller Terminals TB1 1 U MicroTech III Controller Terminals TB3 E Adjustable Cool Warm With O...

Страница 28: ...Holding Pan in Place Connects to Field Supplied Back Condensate Riser Stub Out with Provided Clamp Water Connections All piping connections should be made using good plumbing prac tices and in accord...

Страница 29: ...p the chassis forward or back only pivoting on the ends of the chassis rails Tipping and pivoting the chassis side to side on the long edge of the rails will damage the rails and the rubber vibration...

Страница 30: ...or Room Sensor Receptacle 2 Push the chassis into the cabinet until it makes contact with the stops on the rails at the rear of the cabinet Note Be sure there are no kinks and that the stainless steel...

Страница 31: ...and snap the RCN bezel and board assembly into the knockout Figure 38 Note Feed RCN wire harness into the control box through the top wire hole Figure 38 Feed RCN wire harness through front panel kno...

Страница 32: ...flange of the frame is level plumb and firmly against the drywall Secure the hinged panel door frame with the appropriate fasteners screws field provided Note Before proceeding to instruction 3 be su...

Страница 33: ...tor type and voltage Figure 42 through Figure 47 Note It is the responsibility of the installing contractor to install the ductwork that connects the outdoor air opening in the panel door frame to the...

Страница 34: ...1 Installation Figure 42 Damper control wiring sizes 009 012 with 208 230V and 277V fan motor control Figure 43 Damper control wiring sizes 015 036 with EC motor Figure 44 Damper control wiring sizes...

Страница 35: ...277V PSC fan motor 24V control Figure 46 Damper control wiring sizes 009 036 with 208 230V PSC fan motor 24V control Figure 47 Damper control wiring sizes 009 012 with 115V EC fan motor line voltage...

Страница 36: ...and the room side frame is flush against the drywall Be sure the diffuser frame is level and plumb and secure it with the two 2 screws provided Note When installed correctly the diffuser frame should...

Страница 37: ...nd the condensate drain 2 Master units are offered in two pipe systems with either right hand or left hand connections Secondary units are offered to accommodate internal connections to any of these r...

Страница 38: ...TB2 1 R 24 VAC TB2 2 A Thermostat Alarm Output TB2 3 W2 Thermostat Heat Stage 2 W2 Input TB2 4 W1 Thermostat Heat Stage 1 W1 Input TB2 5 Y2 Thermostat Cool Stage 2 Y2 Input TB2 6 Y1 Thermostat Cool S...

Страница 39: ...trols Figure 50 MicroTech SmartSource unit controller I O expansion module Note Refer to Table 12 and Table 13 on page 38 for terminal descriptions IM 986 11 Vertical Stack WSHP 39 www DaikinApplied c...

Страница 40: ...Freeze Protection Open for water freeze protection Shorted for systems with anti freeze protection 15 F 9 C JP4 Freeze Fault Protection Open for none Shorted to enable freeze fault protection based o...

Страница 41: ...larm once the cause of the fault condition has been cleared A unit power cycle can also be used to clear an automatic lock out if the conditions causing the fault have been cleared Table 16 MicroTech...

Страница 42: ...croTech SmartSource Controller with LonWorks Communication Module For installation and operation information on LonWorks Com munication Module and other ancillary control components see IM 927 MicroTe...

Страница 43: ...Controls Figure 54 LonWorks or BACnet communication module placement on MicroTech III unit controller www DaikinApplied com 43 Vertical Stack WSHP IM 986 11...

Страница 44: ...gh 700 700 690 670 660 640 620 590 570 Low 600 600 590 580 570 550 530 510 480 021 700 High 880 820 780 750 720 690 650 600 520 Low 740 710 690 680 650 610 580 540 024 800 High 880 820 780 750 720 690...

Страница 45: ...20 400 380 360 340 320 300 270 250 2 Medium 350 330 310 290 270 250 230 210 190 1 Low 370 340 310 280 250 220 190 160 130 012 4 High Stage 1 450 430 410 390 370 340 320 300 280 3 Standard 420 400 380...

Страница 46: ...0 40 800 900 800 900 A 800 800 3 Standard 700 800 700 800 B 700 700 2 Medium 600 700 600 700 C 600 600 1 Low 600 600 600 600 D 450 450 030 4 High 0 40 1000 1120 1000 1120 A 1000 1000 3 Standard 880 1...

Страница 47: ...40 310 280 250 220 190 160 130 012 A 450 430 410 390 370 340 320 300 280 B 420 400 380 360 340 310 290 270 250 C 400 370 350 330 310 290 260 240 220 D 360 330 300 270 240 210 180 150 120 Table 23 I O...

Страница 48: ...1 2 Fuse HACR HACR Breaker HP High Pressure Switch HYH Hydronic Heat Valve Optional IOEXP MicroTech III I O Expansion Board ISO Isolation Valve Optional LED1 2 LED Annunciator Harness LP Low Pressure...

Страница 49: ...r HP High Pressure Switch HYH Hydronic Heat Valve Optional IOEXP MicroTech III I O Expansion Board ISO Isolation Valve Optional LED1 2 LED Annunciator Harness LP Low Pressure Switch LWT Leaving Water...

Страница 50: ...e Switch HYH Hydronic Heat Valve Optional IOEXP MicroTech III I O Expansion Board ISO Isolation Valve Optional LED1 2 LED Annunciator Harness LP Low Pressure Switch LWT Leaving Water Temp Sensor MIII...

Страница 51: ...CR HACR Breaker HP High Pressure Switch HYH Hydronic Heat Valve Optional IOEXP MicroTech III I O Expansion Board ISO Isolation Valve Optional LED1 2 LED Annunciator Harness LP Low Pressure Switch LWT...

Страница 52: ...aker HP High Pressure Switch HYH Hydronic Heat Valve Optional IOEXP MicroTech III I O Expansion Board ISO Isolation Valve Optional LED1 2 LED Annunciator Harness LP Low Pressure Switch LWT Leaving Wat...

Страница 53: ...r HP High Pressure Switch HYH Hydronic Heat Valve Optional IOEXP MicroTech III I O Expansion Board ISO Isolation Valve Optional LED1 2 LED Annunciator Harness LP Low Pressure Switch LWT Leaving Water...

Страница 54: ...tely starting With most control schemes the fan will start immediately After a few minutes of compressor operation check for warm air delivery at discharge grille If this is a cold building start up l...

Страница 55: ...e cooling mode of operation and fail safe to cooling The reversing valve is energized for the heating mode of operation Superheat Head Pressure Water Delta T 8 to 14 degrees 335 355 PSIG 10 to 14 Note...

Страница 56: ...sure Low Air Flow Heating High High High High Normal Low High Low High Pressure Low Air Flow Cooling Low Low Low Low Normal High High Low Low Temp Low Water Flow Heating Low Normal Low Normal Low Low...

Страница 57: ...he re frigerant then flows as a low pressure gas through the reversing valve and back to the suction side of the compressor to complete the cycle Figure 59 Heating mode single circuit only shown Retur...

Страница 58: ..._________________________________________________________________ Filters Clean _____________________________________________________________________________ Condensate Traps Installed _______________...

Страница 59: ...by looking in the equipment specificaton catalog Caution P GPM Note A conversion table must be used to find GPM from Delta P measurements Loop Fluid Temperature Rise Drop through Coaxial Heat Exchange...

Страница 60: ...Model Serial H P EWT 3 LWT 4 EWP 1 LWP 2 EAT 5 LAT 6 Volts Amps Cool ing Check Air Filter and Coil Comments more comments on next sheet 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2...

Страница 61: ...Notes Comments Form WS CTS 00 01 Rev 4 14 IM 986 11 Vertical Stack WSHP 61 www DaikinApplied com...

Страница 62: ...IM 986 11 Vertical Stack WSHP 62 www DaikinApplied com...

Страница 63: ......

Страница 64: ...ndard 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...

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