Trane IntelliPak SCRF 25 Installation, Operation And Maintenance Manual Download Page 44 | Manualshive

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44

SCXF-SVX01Q-EN

N

No

otte

e:: Unit transformers IT1, IT3, IT4 and IT5 are sized

to provide power to the unit only.

Selection Procedures

RLA = rated load amps
Compressor LRA = locked rotor amps
Fan motor LRA = locked rotor amps, N.E.C. Table 430 -
150
FLA = full load amps, N.E.C. Table 430 - 150

Voltage utilization range is ±10%

Determination of minimum circuit ampacity (MCA).

MCA = 1.25 x largest motor amps/VFD amps (FLA or
RLA) + the sum of the remaining motor amps.

Determination of maximum fuse size (MFS) and
maximum circuit breaker size (MCB):

MFS and MCB = 2.25 x largest motor amps (FLA or
RLA) + the sum of the remaining motor amps.

For units with the dual power option, there are two
electrical circuits that need calculations using the
previous formulas:

•

Circuit #1— fans

•

Circuit #2— compressors

If the rating value determined does not equal a
standard current rating of over current protective
device, use the next lower standard rating for the
marked maximum rating.

Table 25.

Number of compressors per unit

SCRF/SIRF

25 - 29

30 - 35

40

50

60

SCWF/SIWF

29 - 32

35 - 38

42 - 46

52 - 58

65 - 72

80

90

100

110

10 HP

1

3

2

-

1

-

-

2

-

15 HP

1

-

1

3

3

4

5

4

6

Table 26.

Compressor Electrical Data

SCWF/SIWF

SCRF/SIRF

200V

460V

575V

200V

460V

575V

HP

RLA

LRA

RLA

LRA

RLA

LRA

HP

RLA

LRA

RLA

LRA

RLA

LRA

10

41.4

267

18.6

142

15.8

103

10

41.4

267

18.6

142

15.8

103

15

56.9

351

25.5

197

23.1

146

15

56.9

351

25.5

197

23.1

146

Table 27.

Fan motor electrical data

HP

TYPE

200V

460V

575V

FLA

LRA

FLA

LRA

FLA

LRA

5

OPD

15.3

109.0

6.6

48.0

5.2

40.0

TEFC

15.2

128.8

6.7

56.0

5.3

44.8

7.5

OPD

23.3

199.0

9.7

84.8

7.8

61.4

TEFC

22.1

164.0

9.6

70.9

7.7

56.9

10

OPD

29.5

260.0

12.6

118.0

10.1

72.3

TEFC

29.5

216.0

12.8

103.0

10.3

83.9

15

OPD

43.4

271.0

18.9

118.0

15.1

95.9

TEFC

42.5

288.0

18.5

125.0

15.0

102.0

20

OPD

57.0

350.0

24.5

156.0

19.6

126.0

TEFC

55.5

402.0

24.2

175.0

19.4

140.0

25

OPD

70.0

432.0

30.5

190.0

24.5

155.0

TEFC

71.0

523.0

30.5

188.0

24.5

140.0

30

OPD

82.2

514.0

36.6

252.0

29.0

200.0

TEFC

81.0

560.0

38.0

274.0

29.2

177.0

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Summary of Contents for IntelliPak SCRF 25

Page 1: ...usted or altered equipment by an unqualified person could result in death or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels...

Page 2: ...th he e j jo ob b b be ei in ng g u un nd de er rt ta ak ke en n c co ou ul ld d r re es su ul lt t i in n d de ea at th h o or r s se er ri io ou us s i in nj ju ur ry y T Te ec ch hn ni ic ci ia an...

Page 3: ...ie es s c ca an n b be e f fo ou un nd d o on n t th he e B BO OS S s si it te e W Wh he er re e l lo oc ca al l r re eg gu ul la at ti io on ns s a ar re e m mo or re e s st tr ri in ng ge en nt t t...

Page 4: ...Connections 36 Installing the Plenum 36 Installing the Airside Economizer 37 Water Piping 38 Condenser Connections 38 Condensate Drain Connections 38 General Waterside Recommendations for Cooling Tow...

Page 5: ...ion 57 Occupied Unoccupied Switching 57 Field Supplied Occupied Unoccupied Input on the RTM 57 Tracer Summit System 57 Factory Mounted Time Clock 57 Unoccupied Sequence of Operation 57 Morning Warm up...

Page 6: ...VFD with Bypass 66 Airside Economizer Option 66 Comparative Enthalpy Control 66 Airside Economizers with Traq Damper 66 Standard Two Position Damper Interface 67 Airside Economizer Interface 67 Airsi...

Page 7: ...ed Compressor Suction Restrictor Replacement 91 Refrigerant System 92 Refrigerant Leak Test Procedure 92 Brazing Procedures 93 System Evacuation Procedures 93 Compressors 95 Scroll Compressor Failure...

Page 8: ...stall because they feature A single point power connection Factory installed and tested controls A single water point connection Factory installed options An internally trapped drain connection N No o...

Page 9: ...control up to four self contained units each containing an interprocessor communications bridge IPCB It has all the same features as the unit mounted HI except for the service mode For more informati...

Page 10: ...rning warm up operation is available on all units The static pressure probe zone night heat morning warm up supply air temperature reset sensor options ship separate inside the unit control panel for...

Page 11: ...d height plenum w factory cut holes ship separate L STD plenum w factory cut holes ship separate M Low plenum w factory cut holes ship separate N Extended height plenum w field cut holes ship separate...

Page 12: ...es 1 With service valves 0 None Digit 32 Miscellaneous System Control 1 Time clock 2 Interface for remote HI IPCB 3 Dirty filter switch 4 1 and 2 5 1 and 3 6 2 and 3 7 1 2 and 3 0 None Digit 33 Contro...

Page 13: ...5 575 Volt 60 Hz 3 ph 6 200 Volt 60 Hz 3 ph Digit 9 Control Option 0 No Low Ambient IPak A No Low Ambient T Stat B Low Ambient IPak C Low Ambient T Stat Note T Stat only available on SCRG Digit 10 11...

Page 14: ...antity 1 1 1 1 1 1 1 1 Diameter 18 18 18 18 18 20 20 25 Minimum Hp 5 5 5 5 5 5 5 7 5 Minimum Kw 3 73 3 73 3 73 3 73 3 73 3 73 3 73 5 39 Maximum Hp 20 20 20 20 20 25 25 30 Maximum Kw 14 91 14 91 14 91...

Page 15: ...15 10 15 15 10 15 15 Circuits 3 3 3 4 4 4 5 6 6 Evaporator Coil Data Rows 4 or 6 2 4 or 6 3 4 or 6 6 6 or 8 6 or 8 6 or 8 Sq Ft 38 57 49 09 49 09 49 09 49 09 49 09 56 81 56 81 56 81 FPF 144 144 144 14...

Page 16: ...s are set to prevent moisture carryover on the evaporator coil 4 Minimum cfm limits are set to ensure stable thermal expansion valve operation at low load conditions Table 3 SCRF SIRF Air cooled self...

Page 17: ...s 1 Refrigerant charges are listed as circuit 1 circuit 2 and provide only an estimate Final charge requires sound field charging practice 2 Operating charge is for entire system which includes the ai...

Page 18: ...eft corner Table 7 SCRF SIRF Refrigerant circuits number of compressors by circuit Circuit Unit Size 1 2 25 29 Ton 1 15T 1 10T 30 35 Ton 2 10T 1 10T 40 Ton 1 10T 1 15T 1 10T 50 Ton 2 15T 1 15T 60 Ton...

Page 19: ...eating coils have Prima Flo fins without turbulators 2 For coil capacities use TOPSS Trane Official Product Selection Program 3 Full capacity coils consist of two coils stacked and piped in parallel T...

Page 20: ...cally Cleanable 4 144 55 101 SCXF 42 46 Mechanical Cleanable 4 144 70 101 SCXF 52 58 65 72 80 85 Chemically Cleanable 2 144 70 101 SCXF 52 58 65 72 80 85 Mechanical Cleanable 2 144 70 101 SCXF 52 58 6...

Page 21: ...unit if necessary Allow minimum recommended clearances for routine maintenance and service Allow space at end of the unit for shaft removal and servicing Refer to the unit submittals for dimensions Se...

Page 22: ...ged material from receiving location Take photos of the damage if possible The owner must provide reasonable evidence that the damage did not occur after delivery Repair Notify the appropriate sales r...

Page 23: ...VFD Supply Fan Isolators Remove the shipping channels and four fan mounting bolts from beneath the fan Open both fan compartment doors to access the channels N No ot te es s There are six fan mountin...

Page 24: ...imensional Data Figure 5 20 to 38 ton self contained N No ot te es s 1 All unit weights include refrigerant water controllers electric heat and valves 2 Add 150 lbs to total weight to obtain approxima...

Page 25: ...0 ton self contained N No ot te es s 1 All unit weights include refrigerant water controllers electric heat and valves 2 Add 150 lbs to total weight to obtain approximate shipping weight D Di im me en...

Page 26: ...terface 89 50 Unit Control Box 140 00 VFD Interface Plenum low standard and extended height shown Figure 8 90 to 110 ton self contained top view isolator mounting locations shown 72 00 3 50 133 00 69...

Page 27: ...CWF 29 32 SCRF 25 29 18 31 85 23 5 23 11 20 4 SCWF 35 38 SCRF 30 35 20 30 5 26 2 21 25 25 75 SCWF 42 58 SCRF 40 50 25 43 75 33 31 5 31 5 SCWF 65 80 SCRF 60 27 5 43 5 33 5 28 63 34 5 SCWF 90 110 27 5 5...

Page 28: ...5 375 4 3 8 1 1 4 600 Note Weight includes complete heating coil box Hot Water Coils Figure 11 Hot Water Coil Notes 1 All coils are factory mounted piped and wired 2 All piping connections are 1 1 2 3...

Page 29: ...8 45 95 7 8 705 42 80 Ton low 80 3 8 21 1 8 119 7 8 390 std 80 3 8 28 5 8 119 7 8 540 ext 80 3 8 45 119 7 8 705 90 110 Ton low 80 1 2 19 5 8 140 430 std 80 1 2 27 3 4 140 595 ext 80 1 2 43 1 2 140 79...

Page 30: ...SXRF 40 57 3 8 86 1 2 13 1 4 104 3 8 8 7 8 94 1 8 63 1 2 28 1 8 26 SXWF 46 57 3 8 86 1 2 13 1 4 104 3 8 8 7 8 94 1 8 63 1 2 28 1 8 26 SXRF 50 57 3 8 86 1 2 13 1 4 104 3 8 8 7 8 96 5 8 63 1 2 52 37 1 2...

Page 31: ...ended service and code clearances a AirInlet See Table 42 1066 8mm 20 38 Ton Minimum 48 1219mm 42 110 Ton Control Panel 36 914 4mm Minimum Left side Front Right side N No ot te e a See for right side...

Page 32: ...5371 2436 800 363 335 152 665 302 600 272 N A 257 117 72 5491 2490 800 363 335 152 665 302 600 272 216 98 257 117 80 5814 2637 800 363 335 152 665 302 600 272 N A 257 117 90 6330 2871 N A N A 1015 460...

Page 33: ...0 77 111 170 77 111 10 126 57 153 114 51 710 126 57 153 10 215 97 522 215 97 522 215 97 522 15 152 68 946 126 57 153 126 57 153 15 220 99 790 215 97 522 215 97 522 20 152 68 946 126 57 153 126 57 153...

Page 34: ...ce en nt te er r o of f g gr ra av vi it ty y l li if ft t p po oi in nt t T To o a av vo oi id d d dr ro op pp pi in ng g o of f u un ni it t r re ep po os si it ti io on n l li if ft ti in ng g p po...

Page 35: ...oused spring isolator with a locating pin Factory provided unit isolators are type CP and indicate the spring number on the outer housing See Set the spring type vibration isolators in position before...

Page 36: ...e fan diameters Use 3 flexible duct connection on discharge ductwork N No ot te e Compressors and fan assembly are internally isolated External isolation devices spring mounting isolators are at discr...

Page 37: ...n its side flanges are aligned with the holes in the C channel collar Install screws removed in step 3 through the damper cabinet s side flanges and into the C channel s corresponding holes 12 Attach...

Page 38: ...es su ul lt t f fr ro om m u un nt tr re ea at te ed d o or r i im mp pr ro op pe er rl ly y t tr re ea at te ed d w wa at te er r o or r s sa al li in ne e o or r b br ra ac ck ki is sh h w wa at te...

Page 39: ...condensing pressure control valve that allows compressor operation down to entering water temperatures of 35 F 2 C For more information on constant and variable water flow see the Sequence of Operatio...

Page 40: ...side of the unit Circuit 2 is always on the left and Circuit 1 is always on the right Cleanliness is extremely important during system installation to minimize residual contaminants such as oxidizatio...

Page 41: ...se er ri io ou us s h he ea al lt th h r ri is sk ks s S So om me e g ga as se es s m ma ay y b be e f fl la am mm ma ab bl le e a an nd d o or r e ex xp pl lo os si iv ve e I If f a a l le ea ak k i...

Page 42: ...co on nn ne ec ct t u un ni it t p po ow we er r b be ef fo or re e e ev va ac cu ua at ti io on n a an nd d d do o n no ot t a ap pp pl ly y v vo ol lt ta ag ge e t to o c co om mp pr re es ss so or...

Page 43: ...o u us se e c co op pp pe er r c co on nd du uc ct to or rs s c co ou ul ld d r re es su ul lt t i in n e eq qu ui ip pm me en nt t d da am ma ag ge e a as s t th he e e eq qu ui ip pm me en nt t w w...

Page 44: ...d maximum rating Table 25 Number of compressors per unit SCRF SIRF 25 29 30 35 40 50 60 SCWF SIWF 29 32 35 38 42 46 52 58 65 72 80 90 100 110 10 HP 1 3 2 1 2 15 HP 1 1 3 3 4 5 4 6 Table 26 Compressor...

Page 45: ...RF Size Heat Kw 200V Amps 460V Amps 80 60 48 133 2 57 7 Note Electric heat amperage should not be considered when determining minimum circuit ampacity The current of the unit in the heating mode will...

Page 46: ...available and can be ordered with the unit or after the unit ships They also can be ordered through Unitary Accessories ACC UPG Rooftop Packaged Heat Pump Split System Accessories ACC Contact your loc...

Page 47: ...5U29 BAYSENS110 only function status indicator lights include SYSTEM ON glows continuously during normal operation or blinks if system is in test mode COOL glows continuously during cooling cycles or...

Page 48: ...te e m ma an nu uf fa ac ct tu ur re er r s s l li it te er ra at tu ur re e f fo or r a al ll lo ow wa ab bl le e w wa ai it ti in ng g p pe er ri io od ds s f fo or r d di is sc ch ha ar rg ge e o o...

Page 49: ...Wiring Size 0 150 feet 22 gauge 151 240 feet 20 gauge 241 385 feet 18 gauge 386 610 feet 16 gauge 611 970 feet 14 gauge Figure 26 Typical zone sensor installation Junc tion Mounting to Junction Box M...

Page 50: ...131 F 2 Locate the time clock at least 5 feet away from any large electrical contact or machinery to avoid possible electrical interference problems 3 Provide a separate independent circuit for the t...

Page 51: ...he RHI panel in an area that will ensure the communication link between the panel and the unit s does not exceed 5 000 feet maximum or pass between buildings See Table 33 p 51 The run length of the lo...

Page 52: ...te into the hole located at the top left hand side of the enclosure c Slide the bottom of the plate into place aligning the two clearance holes with the screw holes on the right Install the screws but...

Page 53: ...ac ci it to or rs s t to o d di is sc ch ha ar rg ge e b be ef fo or re e s se er rv vi ic ci in ng g R Re ef fe er r t to o t th he e m ma an nu uf fa ac ct tu ur re er r s s r re ec co om mm me en...

Page 54: ...o not cut the bare shield wire off 2 Strip approximately 1 2 inch of insulation from each insulated wire to connect them to the terminal strip at the remote panel 3 Connect the white lead to the posit...

Page 55: ...comply with applicable electrical codes An optional communication link provides a serial communication interface SCI between Tracer Summit and each commercial self contained CSC unit in the system The...

Page 56: ...ress either Prog or key until flashes The program is deleted after a few seconds Manual Override While in the run mode symbol is displayed pressing the key will reverse the load status switch load off...

Page 57: ...airflow position After the max VAV box stroke time expires the supply fan economizer if enabled compressors and heat are enabled to satisfy the unoccupied zone temperature setpoints N No ot te e Unocc...

Page 58: ...closed This input can be received from Tracer Summit the remote NSB zone sensor the timed override function or a field supplied contact Dependent on unit options and the HI programming the following s...

Page 59: ...racer Summit can provide the input to establish the minimum damper position When outdoor air conditions are above the setpoint or comparative enthalpy control setting only mechanical cooling will func...

Page 60: ...upply AirTempering Supply air tempering is available on units without volume control and with hot water steam or electric heat or units with supply air temperature control with steam or electric heat...

Page 61: ...ternate between the standard compressor staging and the lead lag staging Using Table 34 p 62 a SXWF 29 ton unit will first stage compressor B then A then AB for first cycle and A then AB for the secon...

Page 62: ...own curve for unit operating improperly outside control band Compressor Safety Devices If a compressor low pressure cutout opens during compressor startup the UCM will not shut the compressor off duri...

Page 63: ...can be ordered with either basic piping or intermediate piping Also units with waterside economizers can be set for either variable or constant water flow at the HI See Figure 33 p 64 and Figure 34 p...

Page 64: ...trol shutoff valves are wired controlled and installed in unit One valve is located in economizer s water inlet and the other in condenser bypass water inlet When waterside economizer enables two way...

Page 65: ...ischarge in the supply air duct If the supply air duct temperature exceeds 240 F 115 6 C the unit shuts down and displays a diagnostic A manual reset is required at the unit High duct temperature can...

Page 66: ...er to open only to the minimum position On water cooled units compressor operation lockout will not occur at low ambient air temperatures However lockout will still occur via low condenser water tempe...

Page 67: ...llation to monitor reference enthalpy Economizer operation enables when the outside air enthalpy is less than 25 BTu lb adjustable 19 28 BTu lb During occupied mode the outside air damper opens to 15...

Page 68: ...rge w duct pressure control Binary Output V O relay BCI I option For BACnet Points List refer to ACC SVP01 EN LCI I Points List Refer to the LonTalk Communications Interface for Intellipak and Commerc...

Page 69: ...M circuit board to actuator motor RTM Binary Outputs The RTM has an output with pressure switch proving inputs for the supply fan There is a 40 second delay from when the RTM starts the supply fan unt...

Page 70: ...will require a manual reset Refer to the unit wiring diagrams attached to the unit control panel for the proper connection terminals The switch must be rated for 12 mA 24 Vdc minimum This input will...

Page 71: ...gle RHI can monitor and control up to four self contained units if each one contains an IPCB The IPCB switches must be set as SW1 off SW2 off and SW3 on Interprocessor Communications Board IPCB Option...

Page 72: ...nce can purge the air out of a building before coming out of unoccupied mode of operation in a VAV system Also it can be used to purge smoke or stale air Supply fan on Supply fan VFD on 60 hz VAV boxe...

Page 73: ...air entering the unit to a minimum airflow setpoint See Figure 36 p 73 for a detail view of the velocity pressure transducer solenoid assembly An optional temperature sensor can be connected to the V...

Page 74: ...e values shown in Table 43 p 75 Reference Table 44 p 75 for corresponding input voltage setpoints Following are formulas to calculate input voltage or setpoint SP setpoint IPV input voltage I If f t t...

Page 75: ...y air hydronic heating setpoint VAV units only 0 5 to 4 5 40 to 180 F Space static pressure setpoint 0 5 to 4 5 0 03 to 0 30 IWC Supply air pressure setpoint VAV units only 0 5 to 4 5 0 0 to 5 0 IWC N...

Page 76: ...ps four times in the first three minutes of operation all compressors on that circuit lockout and a manual reset diagnostic initiates LP switches close at 74 water cooled and 61 air cooled 6 psig Evap...

Page 77: ...position in the event the supply air temperature falls below the occupied heating setpoint temperature Supply Air Temperature Sensor The supply air temperature sensor is an analog input device It mon...

Page 78: ...the pressure differential across the filters decrease to 0 4 w c The switch differential can be field adjusted between 0 17 w c to 5 0 w c 0 05 w c High Duct Static Switch Option The high duct static...

Page 79: ...es s t to o e en ns su ur re e t th he e p po ow we er r c ca an nn no ot t b be e i in na ad dv ve er rt te en nt tl ly y e en ne er rg gi iz ze ed d V Ve er ri if fy y w wi it th h a a C CA AT T I I...

Page 80: ...nsor is installed Electrical Verify electrical connections are tight Components Verify liquid line service valve and suction and discharge service valves if present are open at startup N No ot te e Ea...

Page 81: ...attempt to charge system with low ambient dampers operating if applicable Disable these dampers in Open position before proceeding Evaporator load should be at least 70 F return air 350 CFM ton Work o...

Page 82: ...ce es ss sa ar ry y t to o w wo or rk k w wi it th h l li iv ve e a an nd d e ex xp po os se ed d r ro ot ta at ti in ng g c co om mp po on ne en nt ts s H Ha av ve e a a q qu ua al li if fi ie ed d...

Page 83: ...puts or the generic BAS is not keeping the unit off To prevent Tracer Summit from affecting unit operation remove Tracer wiring and make required changes to setpoint and sensor sources Operating Progr...

Page 84: ...ater temp F Entering water pressure psig Leaving water pressure psig Air Cooled Units Data taken from outside condensing unit Voltage Amp Draw Entering air temp F Outside condensing unit only Leaving...

Page 85: ...ponents that are located behind it To swing the panel open 1 Remove the unit center cover panel to the left of the VFD panel 2 Remove and discard the sheet metal shipping screws along the top and bott...

Page 86: ...u ul lt t i in n d de ea at th h o or r s se er ri io ou us s i in nj ju ur ry y D Di is sc co on nn ne ec ct t a al ll l e el le ec ct tr ri ic c p po ow we er r i in nc cl lu ud di in ng g r re em m...

Page 87: ...tential corrosion of metal surfaces 6 Allow the unit to dry completely before putting it back into service 7 Properly dispose of all contaminated materials and cleaning solution Supply Fan I Im mp po...

Page 88: ...dirt or dust 100 F to 150 F ambient temp Table 46 Compatible with NLGI grade 2 lithium fan bearing greases Type Shell Alvania EP2 Mobile SHC 220 FINA LICAL Table 47 Compatible with NLGI grade 2 lithiu...

Page 89: ...adjustment bottom To adjust belt tension see Figure 42 p 89 and perform the following procedure 1 Loosen bolts A B and E on both sides of the sliding motor base See Figure 43 p 90 2 Loosen nuts C and...

Page 90: ...90 SCXF SVX01Q EN Figure 43 Location of fan belt label on fan scroll top and belt tensioning with fan adjustment points bottom M Ma ai in nt te en na an nc ce e...

Page 91: ...roll compressors I Im mp po or rt ta an nt t If compressor replacement of a manifold set is required DO NOT alter manifold piping The design is critical to proper refrigerant flow 40 Ton Air Cooled Co...

Page 92: ...r a ab bo ov ve e a at tm mo os sp ph he er ri ic c p pr re es ss su ur re e f fo or r p pr re es ss su ur re e t te es st ti in ng g a as s t th he ey y m ma ay y b be ec co om me e f fl la am mm ma...

Page 93: ...ng g w wi it th h r re ef fr ri ig ge er ra an nt t v va ap po or rs s p pr re es se en nt t c ca an n f fo or rm m h hi ig gh hl ly y t to ox xi ic c g ga as se es s a an nd d e ex xt tr re em me el...

Page 94: ...alves B and C Evacuate system to a pressure of 300 microns or less As vacuum is being pulled on system it may appear that no further vacuum is being obtained yet pressure is high It is recommended dur...

Page 95: ...true amount of moisture left in the system It indicates that no leaks are present and the system is properly evacuated State of equilibrium indicates the true amount of moisture left in the system It...

Page 96: ...96 SCXF SVX01Q EN Components Figure 49 Typical water cooled compressor section components N No ot te e Tighten bolts to 38 ft lbs M Ma ai in nt te en na an nc ce e...

Page 97: ...r m mi ix xi in ng g w wi it th ho ou ut t u us si in ng g a an n a al lu um mi in nu um m c co or rr ro os si io on n i in nh hi ib bi it to or r i in n t th he e c cl le ea an ni in ng g s so ol lu...

Page 98: ...o on n b be el lo ow w c co ou ul ld d r re es su ul lt t i in n e eq qu ui ip pm me en nt t d da am ma ag ge e D Dr ra ai in n a an nd d v ve en nt t c co oi il ls s w wh he en n n no ot t i in n u u...

Page 99: ...B B0 06 6 E EN N Water valves have a stern packing nut If there is evidence of water leakage at the valve stem proceed as follows 1 Remove actuator motor from support plate 2 Remove shaft coupling 3 T...

Page 100: ...d grease designed for long life and minimum lube intervals Over lubrication can be just as harmful as not enough 3 With power disconnected manually rotate the fan wheel to check for obstructions in th...

Page 101: ...harge and suction line access valves When the unit has stabilized after operating approximately 15 minutes at full load record suction and discharge pressures System malfunctions such as low airflow l...

Page 102: ...xhaust actuator control Reset Required PAR The supply fan is not allowed to restart for 15 seconds after the diagnostic occurs An auto reset will also occur if the unit cycles out of occupied mode and...

Page 103: ...enser temperature sensor temp 55 F or temp 209 F Controls Reaction A Lockout Ckt 1 2 3 or 4 request is issued to the compressor staging control function Reset Required PAR An automatic reset occurs af...

Page 104: ...ata used module packet byte bit WSM 01 18 05 Activation Conditions Temperature 50 F or temperature 209 F and unit configured with water cooled condenser and or economizer Time to React 10 sec T 20 sec...

Page 105: ...uously Heat Module Auxiliary Temperature Sensor Fail Problem The heat mod aux temp sensor input is out of range Check Sensor resistance should be between 830 ohms 200 F and 345 7 ohms 40 F If so check...

Page 106: ...e by Tracer Summit or by cycling power to the RTM Low Pressure Control Open Circuit 1 2 3 or 4 Problem The Low Pressure Control LPC for Ckt 1 2 3 or 4 is open Check State of refrigerant charge for ckt...

Page 107: ...nications with the night setback panel programmable zone sensor Check Field unit wiring between RTM and NSB Panel Reason for Diagnostic The RTM has lost communication with the NSB panel Controls React...

Page 108: ...rence enthalpy changeover Level 2 control Reset Required PMR An automatic reset occurs after the RA humidity input returns to its allowable range continuously for 10 seconds Return Air Temperature Sen...

Page 109: ...eck Check field unit wiring between the RTM and SCM Reason for Diagnostic The RTM has lost communication with the SCM Controls Reaction A lockout request is sent to the compressor staging control func...

Page 110: ...efault HI set SA temp heating setpoint becomes the active SA temp heating setpoint Reset Required PAR An automatic reset occurs after the SA temp heating setpoint input returns to within range for 10...

Page 111: ...LCI Check Check field unit wiring between RTM and LCI module Reason for Diagnostic The RTM has lost communication with the LCI module Controls Reaction All active commands and setpoints provided by T...

Page 112: ...ccupied zone cool setpoint selection source Unoccupied Zone Heat Setpoint Failure Problem The unoccupied zone heating setpoint input is out of range Reason for Diagnostic The input designated as unocc...

Page 113: ...tput full open request to heat control A fan off request to supply fan control Close damper request to economizer actuator control Water pump to turn on and position all water valves to provide maximu...

Page 114: ...water flow switch becomes not installed Z Zone Cool Setpoint Failure Problem Occupied zone cooling setpoint is out of range Reason for Diagnostic Input designated as occupied zone cooling setpoint sou...

Page 115: ...m W or W O VFD W or W O Bypass S WF 20 80T S RF 20 60T 2307 8404 Field Wiring Diagram Single Point Pwr S WF 85T 2307 8406 Schematic Diagram With VFD RTM Module S WF 85T 2307 8407 Schematic Diagram Wit...

Page 116: ...60T 2307 8300 Connection Diagram CV S WF 20 80 S RF 20 60T 2307 8330 Connection Diagram CV S WF 20 80 S RF 20 60T 2307 8297 Connection Diagram CV S WF 85T 2307 8405 Connection Diagram CV RTM Module S...

Page 117: ...SCXF SVX01Q EN 117 N No ot te es s...

Page 118: ...118 SCXF SVX01Q EN N No ot te es s...

Page 119: ...SCXF SVX01Q EN 119 N No ot te es s...

Page 120: ...protect food and perishables and increase industrial productivity and efficiency We are a global business committed to a world of sustainable progress and enduring results ingersollrand com Ingersoll...

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