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Home My WebLink About17127 SMOKEY POINT BLVD_056390_2026 15 fm' `f7 INSPECTION REPORT ` 04M ii( Permit No.: O� (39 D Lot #: Address: 111 7_1 5 M o kw QT— 6 4,va Contractor:Owner: 7- 11 Date: 2� -oS y- A APPROVAL ❑ PARTIAL APPROVAL ❑ VIOLATION ❑ CORRECTION REQUESTED ❑ Corrections listed below MUST BE MADE before work can be approved. ❑ Please contact inspector. ❑ Was not able to perform inspection. ❑ CALL 435-0674 FOR RE-INSPECTION - 24 hour notice required. IL4 Cz rl' ail 1 (p Inspector: L Date: TYPE OF INSPECTION REQUESTED ❑ Under-floor ❑ Framing ❑ Gas Piping ❑ Footing ❑ Drywall, Nailing ❑ Consultation ❑ Foundation ❑ Shear Nailing ❑ Groundwork il-Mechanical ❑ Grid ❑ Struct. Slab ❑ Wood Stove ❑ Rough-in ❑ Final ❑ Masonry ❑ Drainage ❑ Insulation 0 Other: .� � � ., ' L �� i � , � - - I f' - - .� � f , r . � I ' I _ - - �� . . ti _ - _ � I i C I T`f C]F= ARI� I IVGTC7IV CC31',1STF2UCT I C]1*4 F:),EFt1-1 I T "Ei: FRM I T NJC3 - IZIS—€-> 3g► 9ZI Owner: 7-11 STORE 17127 SMOKEY PT BLVD ARLINGTON 98223 Value of Work: $4, 800. 00 Tax ID: Phone : 360-659-3353 Describe Work: REPLACE 2 HEAT PUMP UNITS ( LIKE FOR LIKE) Proposed Use: RETAIL GROCERY STORE Legal Description: Job Address: 17127 SMOKEY POINT DR Contractor's Name Type Address License* SOURCE REFRIGERATION MEC 3902 W VALLEY HWY N #206 SOURCRI995PE P E R M I T F E E S Equipment and Fixtures Number Fee Total Charge --------------------- -- ----- ---- - ------ AIR HANDLING UNIT 2 $37. 00 $74. 00 S U H T 0 T A L. . . . . . $74. 00 TOTALS Fee Equipment $74. 00 ' Mech Permit $24. 00 SIGNATUREfC; TOTAL FEE. . . . . . . . . . . . . . . . . $98. 00 I HEREBY IFY 1- T I HAVE READ AND EXAMITHIS APPLICATION AND PAYMENTS. . . . . . . . . . . . . . . . . . $0. 00 KNOW THE SAME TO BE TRUE AND COR- RECT ALL PROVISIONS OF L - AND TOTAL DUE. . . . . . . . . . . . . . . . . $98. 00 ORDINANCES DOVE MIN G TH TYPE OF WOR WILIw C PLI H WHETHER SPE FIE D R 0 DATE RECEIPT #4- 0 i ING f F GTAL 3 � •.•3 r I J J. I r ! s r � i � ![ 1 •� 1 i l J ,,I1 } I �+ 1 l• IS 1 ( ll Itil 1 i `?i ! � 1:.! ' Al 1 1►1►11 to Leo eAJ 11P •of i lt� Ti•,•i:r:H' •i.i . .: i,A I..it. r ..q•1.,, 1►,i ! /. 1rtv.1 I pl►-c r•., 1►,,-1i-V-r' •_•'_t -i ILa111i11H --:I ►itlitl•'f f,•r1.1- '/+••„..Ift/ri;) 1 t •t`N .�`C c7 — . . l it ,r 1 i' ti lJ i' — � — — — -• — �, �ti `. '� 1 yam. '-.�'� . � `.S �� .� � - ' 1 • 1 i:_._ .. • :-J;4111'A W J I i is/m .fiE` •' . . i IAl*'Vr �ii ►i•1.� air. •'_►: ?::1 �F r21: .•1 . . . . . . . . . . . _r..'! /l.Ii'lYA t 4 4 G`�Y °f COMMERCIAL MECHANICAL 7 o PERMIT APPLICATION C- �� qv �tv G'� Department of Community Development J City of Arlington • 238 N Olympic Ave. •Arlington, WA 98223 • Phone (360)403 3431 • FAX (360)403 3447 THIS APPLICATION MUST BE ACCOMPANIED BY EIGHT(8) SETS OF CONSTRUCTION DRAWINGS, AND THREE (3) SETS OF WASHINGTON STATE ENERGY CODE APPLICATIONS. Type of Permit: ( ) Residential Apartment Acommercial 51 Yles A�>1 BCD Project Address: Parcel ID#: Lot#: Subdivision: Project Description: n P,, 6 i HiAl 0 y Ll PS Owner: r7- 11 At CAtCPnf=6__L7 Phone Number:-RS3 - 7 S6 - 2 Address-id'IS lot-Nfl AIL' S. sua 6 Zity: �� State: (AA Zip Code: Contact Person: 0,4If�0/Y)Aff (,djAMV 144�a4 1 S Phone Number: - '? 96 - 76 9 Cell Phone: Fax: E-mail: Address: City: State: Zip Code: Please List Quantity of Fixtures Below: CLOTHES DRYER FURNACE UP TO 100K BTU GAS OUTLETS FURNACE OVER 100K FLR FURN INSTALURELOCATE SUSPENDED HTR/UNIT HTR\ APPL VENT/OTHER APPLIANCE REPAIR BOILER UP TO 3 HP BOILER UP TO 4-15 HP BOLIER UP TO 16-30 HP BOILER UP TO 31-50 HP BOILER 51 HP AND UP AIR AHNDLING UP TO 10K CFM AIRHANDLING OVER 10K CFM EVAL COOLER VENTILATION FANS OTHER VENTILATION SYSTEM VENT HOOD DOMESTIC INCINERATOR COM/IND INCINERATOR ALL OTHER UNITS FREESTANDING STOVE FIREPLACE INSERT Contractor: &/kL ' e� �, [l, R-ATI()NI Phone Number:� %4 - k63 S� �/`�/ �y Address: �%a J ,�� I` � CityA4JQ()(Z` State: � Zip Code: `�� Contractor's License Number:' ' �' 579 SP)0' Expiration: I hereby certify that the above information is correct and that the construction on, and the occupancy and the use of the above- described property will be in accordance with the laws, rules and regulation of the State of Washington. 7 pplicants Signature Date Print Applicants Name Forms/MECH-1 ti� . ' � ,. . Service WSc060-SF-2A Library Service Literature FactsProduct Section Unitary Product Package Air Conditioner Customer Property: Contains Model WS wiring and service informa- tion. Please retain. Literature Type Service Facts Sequence 2A Date December 2001 File No. SV-UN-RT-WSC060-SF-2A 12/01 Supersedes WSC060-SF-2 Models : Packaged Heat Pump WSC060A3ROAOA WSC060A3R1A0A 5 Ton Rooftop Units WSC060A3R2AOA WSC060A3R3AOA WSC060A4ROAOA WSC060A4R1A0A WSC060A4R2AOA WSC060A4R3AOA WSC060AWROAOA WSC060AWRl AOA WSC060AWR2AOA WSC060AWR3AOA • 0 NOTICE Warnings and Cautions appear at appropriate locations throughout this manual. Read these carefully WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices and where property-damage- only accidents could occur. Since the manufacturer has a policy of continuous product improvement, it reserves the right to change design and specifications without notice. Page F-703-000 Table of Contents.:- I ProductSpecifications...............................................................................3 Direct Drive Indoor Fan Option..................................................................4 Belt Drive Indoor Fan Option.....................................................................5 Belt Drive Motor Sheave/RPM .................................................................6 Economizer Pressure Drop .......................................................................6 FilterPressure Drop ..................................................................................6 Electric Heater Pressure Drop...................................................................6 ReliaTel Sequence of Operation................................................................8 Standard Short Orifice Cooling Pressure Curve ........................................9 SuperHeat Chart ......................................................................................9 10 HeatngPressure Curve........................................................................... Refrigerant Circuit Diagram..................................................................... 11 • 2 i ,: Product Specif icatioil is WSCO60A3.4,W 208-230/60/3 460/60/3 575i60 3 (. Cooling Performance Gross Cooling Capacity BTUH 63,100 63,100 SEER 2 10.1 10.1 10.1 Nominal CFM/ARI Rated CFM 2,000/2,000 2,000/2,000 2,000/2,000 ARI Net Cooling Capacity 60,000 60,000 60,000 Integrated Part Load Value -- S stem Power KW 6.74 6.74 674 Heating Performance High Temp Btuh Rating ® 47 F 59,000 System Power KW 5.76 Low Temp Btuh Rating @ 17 F 36,200 System Power KW 5.05 HSPF Btu/Watts-hr 7 Power Connection Min.Circuit Ampacity Direct Drive-Standard/Oversize 32.6/34.3 16.6/16.9 13.1/13.7 Fuse Size- Standard/Oversize 50/50 25/25 20/20 Min.Circuit Ampacity Belt Drive-Standard 31.4 16.2 12.7 Fuse Size- Standard 50 25 20 Compressor Number/Type 1/Alliance Scroll 1/Alliance Scroll 1/Alliance Scroll Voltage 208-230/60/3 460/60/3 575/60/3 R.L.Am /L. R.Amp 19 1/128.0 9.9/63.0 7.9/49.0 Sound Ratin BELS ut oor Coil- I ype Lanced Tube Size(in.)OD 0.3125 Face Area(sq ft) 9.59 Rows/FPI 3/17 Refrigerant Control Expansion Valve Indoor Coil-Type Lanced Tube Size(in.)OD 0.3125 • Face Area(sq ft) 6.68 Rows/FPI 3/16 3/16 Refrigerant Control Short Orifice Drain Connection Size(in.) 3/4" Outdoor Fan-Type Propeller Propeller Propeller No. Used/Diameter(in.) 1/22 1/22 1/22 Drive Type/No.Speeds Direct/1 Direct/1 Direct/1 CFM 3200 3200 3200 No.Motors/HP 1/0.40 1/0.40 1/0.40 Motor RPM 1075 1075 1075 Direct riveIndoor an-- ype FC Centrifugal FC Centrifugal FC Centrifugal No. Speeds Direct/2 Direct/2 Direct/2 Motor Frame Size 48 48 48 Standard Motor Fan Diameter x Width (in.) 11 x 11 11 x 11 11 x 11 Motor HP 1.00 1.00 1.00 Motor RPM LO/HI Tap 985/1100 985/1100 985/1100 High Static Motor Fan Diameter x Width (in.) 12 x 11 12 x 11 12 x 11 Motor HP 1.20 1.20 1.20 Motor RPM LO/HI Tap 1080/1135 1080/1135 1080/1135 Belt Drive Indoor Fan--Type FC Centrifugal FC Centrifugal FC Centrifugal No. Speeds Variable Sheave Variable Sheave Variable Sheave Belt Size AX26 AX26 AX26 Motor Frame Size 56 56 56 Standard Motor Fan Diameter x Width(in.) 11 x 11 11 x 11 11 x 11 Motor HP 1.50 1.50 1.50 Motor RPM 1750 1750 1750 Filters- Type-Throwaway° Standard Optional No. Size Recommended in. (2)20 x 25 x 1 (2)20 x 25 x 2 Refrigerant Charge(Ibs-R22) 8.5 Footnotes: 1.Cooling Performance is rated at 95 F ambient,80 F entering dry bulb,67 F entering wet bulb and nominal cfm listed. • ARI capacity is net and includes the effect of fan motor heat. Base models are certified in accordance with the Unitary Air-Conditioner Equipment certification program,which is based on ARI Standard 210/240.All models tested in accordance with ARI Standard 210/240. 2. Rated at ARI conditions and in accordance with DOE test procedures. 3. Refrigerant charge shown is a nominal value,for a more precise value see the unit nameplate. 4.One Inch Filter is Standard,Two Inch Pleated Filter is Optional. 3 .� � I Direct Drive Indoor Fan Option External Static Pressure(inches of Water) • Model No. Standard Motor Oversized Motor Downflow, High Speed Low Speed High Speed Low Speed CFM ESP BHP ESP BHP ESP BHP ESP BHP 1600 0.95 0.78 0.87 0.64 1.25 0.90 1.10 0.85 1700 0.90 0.82 0.73 0.65 1.20 0.94 1.00 0.89 1800 0.85 0.85 0.61 0.65 1.10 0.98 0.90 0.91 1900 0.75 0.88 0.51 0.65 1.03 1.02 0.80 0.94 2000 0.65 0.90 0.35 0.66 0.95 1.05 0.70 0.95 2100 0.55 0.93 0.19 0.66 0.85 1.10 0.55 0.96 2200 0.45 0.95 0.10 0.67 0.75 1.12 0.40 0.96 2300 0.35 0.97 --- --- 0.65 1.17 0.20 0.97 2400 0.25 1.00 --- --- 0.53 1.20 --- --- Model No. Standard Motor Oversized Motor Horizontal High Speed Low Speed High Speed Low Speed CFM ESP BHP ESP BHP ESP BHP ESP BHP 1600 0.90 0.78 0.82 0.64 1.20 0.90 1.05 0.85 1700 0.85 0.82 0.68 0.65 1.15 0.94 0.95 0.89 1800 0.80 0.85 0.56 0.65 1.05 0.98 0.85 0.91 1900 0.70 0.88 0.46 0.65 0.98 1.02 0.75 0.94 2000 0.60 0.90 0.30 0.66 0.90 1.05 0.65 0.95 2100 0.50 0.93 0.14 0.66 0.80 1.10 0.50 0.96 2200 0.40 0.95 0.05 0.67 0.70 1.12 0.35 0.96 2300 0.30 0.97 --- --- 0.60 1.17 0.15 0.97 2400 0.20 1.00 --- --- 0.48 1.20 --- --- o NOTES: 1. Data includes pressure drop due to wetcoil and factory installed standard filters. 2. Airflow performance at 230,460,or 575 volts. 3. Fan Motor heat(Mbh)=4.39 X Fan BHP 4. Factorysupplied motors,in commercial equipment,are definite purpose motors, specifically designed and tested to operate reliablyand continuouslyat all cataloged conditions. Using the full horsepower range of our fan motors as shown in our tabular data will not result in nuisance tripping or premature motor failure.Products warranty will not be affected. 5. 5 ton oversized motor performance is with 12 x 11 FC blower wheel. 0 4 i Belt Drive Indoor Fan Option . WSC060A Downflow Configuration External Static Pressure(Inches of Water) 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 1 1/2 HP Standard Motor& Field Supplied Low Static Drive' 1 1/2 HP Standard Motor&Drive 1600 -- -- 704 0.27 754 0.32 806 0.38 856 0.44 900 0.51 942 0.57 981 0.64 1018 0.71 1054 0.77 1800 710 0.29 768 0.36 813 0.41 858 0.47 f 904 0.54 949 0.61 989 0.68 1028 0 75 1064 0.83 1099 0.90 2000 776 0.39 829 0.46 875 0.52 914 0.58 955 0.65 997 0.72 1038 0.80 1076 0.88 1112 0.96 1146 1.04 2200 844 0.51 892 0.58 939 0.65 976 0.72 1011 0.79 1049 0.86 1087 0.94 1125 1.02 1161 1.11 1194 1.20 2400 912 0.64 956 0.72 1000 0.80 1039 0.88 1072 0.95 1105 1.02 1139 1.11 1174 1.19 1209 1.28 1243 1.37 1.10 1.20 1.30 1.40 1.50 CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 1 1/2 HP Standard Motor&Drive 1600 1087 0.84 1121 0.91 1152 0.98 1185 1.06 1215 1.13 1800 1132 0.98 1165 1.05 1195 1.13 1225 1.20 1255 1.28 2000 1179 1.12 1211 1.21 1241 1.29 1270 1.37 1299 1.46 2200 1226 1.29 1258 1.38 1288 1.47 2400 1275 1.47 r -- -- -- -- • WSC060A Horizontal Configuration External Static Pressure(Inches of Water) 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 1 1/2 HP Standard Motor& Field Supplied Low Static Drive 1 1/2 HP Standard Motor&Drive 1600 694 0.27 760 0.35 819 0.42 873 0.49 924 0.57 976 0.67 1025 0.76 1069 0.86 1109 0.95 1147 1.05 1800 766 0.37 824 0.45 881 0.53 932 0.61 980 0.70 1025 0.78 1072 0.88 1115 0.99 1158 1.10 1197 1.21 2000 839 0.49 891 0.57 1 943 0.66 992 0.76 1038 0.85 1081 0.94 1122 1.03 1164 1.14 1206 1.26 1245 1.37 2200 913 0.64 959 0.72 1008 0.81 1054 0.92 1098 1.02 1139 1.12 1179 1.22 1217 1.33 1254 1.43 f -- 2400 988 0.81 1029 0.89 1074 0.99 1118 1.11 1161 1.22 1200 1.33 1237 1.44 Factory Supplied Motors,In Commercial Equipment, 1.10 1.20 1.30 1.40 1.50 Are Definite Purpose Motors,Specifically Designed And CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Tested To Operate Reliably And Continuously At All Cataloged Conditions.Using The Full Horsepower Range 1 1/2 HP Standard Motor&Drive Result In Nuisance Tripping Or Premature Motor Failure. 1600 1180 1.14 1211 1.22 1241 1.31 1270 1.40 1299 1.49 Our Product's Warranty Will Not Be Affected. 1800 1235 1.32 1270 1.43 -- -- -- -- -- -- 2000 1283 1.49 -- -- 2200 -- - 2400 - NOTES: Data Includes Pressure Drop Due To Wet Coils And Filters. ® Fan Motor Heat(MBH)=3.15 x Fan BHP 1.Field Supplied Fan Sheave AK56 Required.Field Supplied Belt May Be Necessary 5 � � ��i 1 i .. Performance Specifications Belt Drive Motor Sheave/ Fan Speed Standard Turns 5 4 3 2 1 Closed Drive Open RPM 897 987 1077 1166 1256 1346 Economizer Pressure Drop Static Pressure Drop(Inches of W.C.) 100% 100% 100% Outside Air Return Air Return Air CFM Downflow Horizontal 1600 0.121 0.042 0.014 2000 0.183 0.070 0.025 2400 0.257 0.103 0.038 Filter Pressure Drop Filter Pressure Drop(Inches of W.C.) Standard Filters Pleated Filters CFM 1lnch 21nch 1600 0.05 0.09 1800 0.07 0.11 2000 0.09 0.13 2200 0.10 0.15 2400 0.12 0.18 Electric Heater Pressure Drop kW Input 6.0 kW 12.0 kW 17.4 kW 23.0 kW Rating CFM Static Pressure Drop(Inches of W.C.) 1600 0.036 0.045 0.053 0.053 1800 0.045 0.056 0.067 0.067 2000 0.056 0.070 0.083 0.083 2200 0.068 0.084 0.101 0.101 2400 0.081 0.100 0.120 0.120 Temperature Rise Across Heater @ 2000 CFM' 9.5 19 27.5 36.4 Note: 1.Temperature Rise =(Heater kW x 3414)/(1.08 x CFM) 2. Minimum airflow for 23 kW heater is 1900 CFM(Heat Pump Only) 6 1: I � 4� 't ReliaTel _Sequence of Operation These units are equipped with a microelectronic control fea- Low Ambient Operation ture, which provides operating functions that are signifi- During low ambient operation, outside air temperature be- cantly different than conventional units. It is referred to as low 55 F,the RTRM will cycle the compressor and outdoor the"ReliaTel Control System".The master module is the fan motor"Off"for approximately 3 minutes after every 10 ReliaTel Refrigeration Module(RTRM). minutes of accumulated compressor run time.The indoor fan motor(IDM)will continue to operate during this evapo- The RTRM provides compressor anti-short cycle timing rator defrost cycle(EDC)and the compressor and outdoor functions through minimum "Off"and "On"timing to in- fan will return to normal operation once the defrost cycle crease reliability, performance and to maximize unit effi- has terminated and the compressor"Off"time delay has ciency. been satisfied. Upon power initialization, the RTRM performs self-diagnos- Cooling with an Economizer tic checks to insure that all internal controls are functioning. When the system is in the"Cool' MODE, the RTRM ener- It checks the configuration parameters against the compo- gizes relay(K3). When the normally open K3 contacts nents connected to the system. close,the switch over valve(SOV) is energized. The econo- mizer is utilized to control the zone temperature providing The LED located on the RTRM module is turned"On"within the outside air conditions are suitable. Outside air is drawn one second after power-up if all internal into the unit through modulating dampers. When cooling is required and economizing is possible,the RTRM sends the Cooling without an Economizer cooling request to the unit economizer actuator(ECA)to When the system is in the"Cool' MODE, the RTRM ener- open the economizer damper.The RTRM tries to cool the gizes relay(K3). When the normally open K3 contacts zone utilizing the economizer to slightly below the zone close, the switch over valve(SOV) is energized. When the temperature setpoint. If the mixed air sensor(MAS)senses zone temperature rises above the cooling setpoint that the mixed air temperature is below 53 F, the damper controlband, the RTRM energizes the(K9) relay coil on the modulates toward the closed position. If the zone tempera- RTRM. When the K9 relay contacts close, the compressor ture continues to rise above the zone temperature setpoint contactor(CC1)coil is energized provided the low pressure controlband and the economizer damper is fully open, the . control (LPC1)and(HPC1)are closed.When the CC1 con- RTRM energizes the compressor contactor(CC1). tacts close, compressor(CPR1)and the outdoor fan motor (ODM)starts provided the normally open ODF relay con- The ECA continues to modulate the economizer damper.. tacts are closed,to maintain the zone temperature to within open/closed to keep the mixed air temperature that is calcu- ±2 F of the sensor setpoint at the sensed location. lated by the RTRM. Evaporator Fan Operation If economizing is not possible,the ECA drives the damper When the fan selection switch is set to the"Auto"position, to the minimum position setpoint when the indoor fan relay the RTRM energizes the(K6) relay coil approximately (F)is energized and allows mechanical cooling operation. 1 second after energizing the compressor contactor coil (CC1)in the cooling mode. In the heating mode, the RTRM When the unit is equipped with the optional fan failure energizes the(K6) relay coil approximately 1 second before switch,wired between terminals J7-10 and J7-11 on the energizing the electric heat contactors. Closing the K6 con- RTOM,the RTRM will stop all cooling functions and pro- tacts on the RTRM energizes the indoor fan relay(F)coil to duce an analog output if the fan failure switch(FFS)does start the indoor fan motor(IDM). not open within 40 seconds after a request for fan opera- tion. When the system is connected to a remote panel, the I The RTRM de-energizes the fan relay(F)approximately "SERVICE"LED will flash when this failure occurs. 60 seconds after the cooling requirement has been satisfied to enhance unit efficiency. When the heating cycle is termi- Economizer Set-Up nated, the indoor fan relay(F)coil is de-energized at the Adjusting the minimum position potentiometer located on same time as the heater contactors. the unit economizer actuator(ECA) sets the required amount of ventilation air. When the fan selection switch is set to the"On"position, the RTRM keeps the indoor fan relay coil(F)energized for Two of the three methods for determining the suitability of I continuous fan motor operation. the outside air can be selected utilizing the enthalpy potenti- ometer on the ECA, as described below: When the unit is equipped with the optional fan failure switch, wired between terminals J7-10 and J7-11 on the 1.Ambient Temperature-controlling the economizing cycle ReliaTel Options Module(RTOM), the RTRM produces an by sensing the outside air-dry bulb temperature.The analog output if the fan failure switch (FFS)does not open table below lists the selectable dry bulb values by poten- within two minutes after a request for fan operation. When tiometer setting. • the system is connected to a remote panel, the"SERVICE" LED will be turned on when this failure occurs. 7 i .� t •' 1 f ReliaTel Sequence of Operation 2. Reference Enthalpy-controlling the economizer cycle by Demand Defrost sensing the outdoor air humidity. The table below lists Demand defrost is a standard feature which permits defrost the selectable enthalpy values by potentiometer setting. whenever coil icing conditions begin to significantly reduce If the outside air enthalpy value is less than the selected unit capacity.To permit defrost, the outdoor temperature value, the economizer is allowed to operate. must be below 52 F, coil temperature must be below 33 F, and the delta temperature F must exceed a RTRM calcu- 3. Comparative Enthalpy- By utilizing a humidity sensor lated value.After 30 minutes of run time under defrost per- and a temperature sensor in both the return air stream mit conditions, the RTRM initiates a defrost cycle. Upon ter- and the outdoor air stream, the unit control processor mination of this cycle,the RTRM monitors the outdoor tem- RTRM)will be able to establish which conditions are best perature(ODT)and the coil temperature(CT)and calcu- suited for maintaining the zone temperature, i.e. indoor lates the delta temperature F(ODT-CT).This value is conditions or outdoor conditions.The potentiometer lo- stored in memory and the RTRM calculates a defrost initiate cated on the ECA is non-functional when both the tem- value.The RTRM continually compares the delta tempera- perature and humidity sensors are installed. ture F to the defrost initiate value. Once the delta tee reaches the initiate value, a defrost cycle is initiated. Potentiometer Dry Enthalpy During the defrost cycle, the RTRM energizes the relay Setting Bulb (K3),which energizes the switch over valve(SOV)through A 73' 27 the normally open K3 relay contacts.Then turns the out- B 70 25 door fan motor(ODM)"Off"by energizing the(K8)relay, which energizes the(ODF) relay.The RTRM energizes the C 67 23 auxiliary electric heat contactor(AH)and(BH) (if appli- D 63 22 cable) if they are not operating, while maintaining compres- "Factory Setting sor(CPR1)operation. Heating Operation The defrost cycle is terminated based on the RTRM termi- When the system switch is set to the"Heat' MODE,the nation temperature calculation using the outdoor tempera- RTRM energizes relay(K3). When the normally open K3 ture (ODT)+27 F.The defrost termination temperature • contacts open,the switch over valve (SOV) is de-energized. (DTT)will typically be between 37 F and 52 F. When the zone temperature falls below the heating setpoint controlband, the RTRM energizes the(K9) relay coil on the Emergency Heat Operation RTRM. When the K9 relay contacts close,the compressor When the system selection switch is in the"EM HEAT' contactor(CC1)coil is energized provided the low pressure MODE, and the zone temperature falls below the heating control(LPC1)and (HPC1)are closed.When the CC1 con- setpoint controlband,the RTRM bypasses compressor and tacts close, compressor(CPR1)and the outdoor fan motor outdoor fan operation and energizes the K1 relay located (ODM) starts provided the normally open ODF relay con- on the RTRM.When K1 relay contacts close,the first stage tacts are closed,to maintain the zone temperature to within auxiliary electric heat contactor(AH)is energized. If the first ±2 F of the sensor setpoint at the sensed location. stage of auxiliary electric heat can not satisfy the heating requirement,the RTRM energizes the K2 relay coil located The RTRM "Smart Recovery"function monitors the rate at on the RTRM. When the K2 relay contacts close,the sec- which the zone temperature is changing every 9 minutes and stage auxiliary electric heat contactor(BH)is ener- during the operating heating cycle. If the zone temperature gized.The RTRM cycles both the first and second stages of is rising at a rate greater than 6 F per hour, no additional heat"On"and"Off"as required to maintain the zone tem- heat is requested (auxiliary electric heat). If not, the RTRM perature setpoint. energizes the first stage auxiliary electric heat contactor (AH) (electric heat optional).A minimum of 10 seconds"Off" time must have elapsed between heater cycles. If mechani- cal heat and first stage auxiliary heat cannot provide the 6 F recovery rate,the RTRM energizes second stage auxiliary heat contactor(BH), if applicable. The RTRM continues to monitor the rate of change and stages the electric heat"Off" as it determines that the mechanical heat(compressor op- eration) is sufficient. • 8 Refrigeration Data SHORT ORIFICE ( COOLING CYCLE PRESSURE CURVE ' (Based on Indoor Airflow of 400 CFM/Ton) 600 550 - m m m - m 500 � 0 0 0 a 450 0 — - LL LL LLl LL n CM Lu LL - N — W C rp O w fCl UM 400 �n — - 00 co '� 115 F OD Ambient N w a 350 105 F OD Ambient w - 300 95 F OD Ambient a 85 F OD Ambient - V 250 w I 75 F OD Ambient 200 65 F DD Ambient I r r 150 55 F DD Ambient 100 50 55 60 65 70 75 80 85 90 95 100 105 110 SUCTION PRESSURE, PSIG �j To Check Operating Pressures 4.Take discharge and suction pressure readings. 1. Start the unit and allow the pressures to stabilize. 5. Plot the outdoor dry bulb and the indoor DB/W B 2. Measure the indoor DB/WB temperature entering temperature onto the chart. • the indoor coil. 6. At the point of intersection, read down for the suction 3. Measure the outdoor air dry bulb temperature pressure and to the left for the discharge pressure. i SUPERHEAT CHARGING CHART (Based on Indoor Airflow of 400 CFM/Ton) 50 To Determine Required Superheat- LL A)Plot the Outdoor Temperature onto the bottom axis of the curve. w 40 - B)Mo,.e vertically to the appropriate indoor DB/W B temp. (or interpolate temp). o C)At the point of intersection, (OD& ID)read horizontally to the left for the required asuperheat. w 86/72 F ID DB/WB = 30 - a80/67 F ID DB/W B t r r�i� 74/62 F ID DB/WB 20 O rn 68 57 F ID DB/WB N w rr 2 10 0 35 45 55 65 75 85 95 105 115 OUTDOOR AMBIENT,DB F 1)REFRIGERANT CHARGE -ADD if the superheat is more than 5 F abo%e curve value. REDUCE if the superheat is more than 5 F below curve value. OK if the superheat is within 5 F of curve value. 2)Do not add refrigerant if the superheat is less than 5 F. 3)Curves are based on 400 CFM/Ton Indoor Airflow @ 50%R.H. 4)System must be running at stablized conditions before measuring superheat. 9 •• — a. ,�_ Refrigeration Data HEATING CYCLE PRESSURE CURVE • (Based on Indoor Airflow of 400 CFM/Ton) 400 i c I + 350 E ao E c p a E 0 - -- - p — LL 0. E 0 0 I LL n Lj 300 LL d E Q o p N 80 F ID DB a — E — ¢ 0 � N ¢ p LL I ( 70FIDDB 0 a 250 p o `� I 60 F ID DB LL W o — �7 = 200 U _N 0 150 100 10 20 30 40 50 60 70 80 90 100 SUCTION PRESSURE,PSIG To Check Operating Pressures 4.Take discharge and suction pressure readings. 1.Start the unit and allow the pressures to stabilize. 5. Plot the outdoor dry bulb and the indoor dry bulb 2. Measure the indoor DB/WB temperature entering temperature onto the chart. • the indoor coil. 6. At the point of intersection, read down for the suction 3. Measure the outdoor air dry bulb temperature pressure and to the left for the discharge pressure. • 10 Mechanical Data . Refrigerant Circuit Diagram CONTAINS REFRIGERANT! SYSTEM CONTAINS OIL AND REFRIGERANT UNDER HIGH PRESSURE. RECOVER REFRIGERANT TO RELIEVE PRESSURE BEFORE OPENING THE SYSTEM. Failure to follow proper procedures can result in personal illness or injury or severe equipment damage. OUTDOOR COIL (13 CIRCUITS SHOWN) INDOOR COIL (10 CIRCUITS SHOWN) HEATING �S OI.IYI pI 1F� COOLING DPHI SION • VALVE yvl =ATING o �S COOLING FLOW Txv[Av LOBE CONTROL A DEVICE KVC ICOOLIW. HOOC. DISCHARGE col:TE wc.ATwc HIGH PRESSURE CONTROL OR �Q SERVICE VALVE SUCTION y SENICC COMPRESSOR 4' VALVES o LOW PRESSURE SERVICE CONTROL �VOLVE .TING UNIT NO CIRCUITS N❑. CIRCUITS COOLING INDOOR OUTDOOR WSC04e 10 13 4366-1314A WSCO60 13 l3 11