Loading...
Plans (10) k P-2-0( 0005r lozOco. SA) sr cs2._. DUNHAM mechanical+electrical consulting engineering 05/22/14 City of Tigard Building Division 13125 SW Hall Blvd. Tigard, OR 97223 Comm. No.: 0415871-001 Project: DXL-Washington Square Too Re: Plan Review Comment To whom it may concern: Please see the response below to the mechanical plan review comment. Comment— Require attachment details of 5 RTU's and structural calcs. Response— We have added a seismic RTU curb attachment detail, please see MSK-1. All 5 new RTUs are replacing existing units,and are significantly lighter than the previous units. The existing units were slightly larger in capacity and were older heavier steel framed units from the mid 80's. The existing roof structure will not require additional reinforcement to support the new units. Please refer to RTU weight comparison table provided on MSK-1. Regards, Jason Kong Associate/Mechanical DUNHAM 50 South Sixth Street/Suite 1100 Minneapolis, Minnesota 55402-1540 PHONE 612.465.7550 Fax 612.465.7551 WEB dunhameng.com VIBRATION PAD (4) PI ATFD #10 TFK 3/4" SCREWS (4) PLATED #10 TEK x 3/4" 1 1 NAILER STRIP V F---,,,,..s....,_ 16 GA x 6" SEISMIC CLIP, EA UNIT CURB '//j SEE ARCH. DWGS 1-1127-81 1/2" RIGID //,//, FOR FLASHING INSULATION /� /// j// CANT STRIP ///•• /// :•gip „ %///////�///:///;,..2/72://;,;///- ////////// ///%//�//% �//j/;// /j///j/// // ////////////// o K ,/-/Z. I V A ROOF OPENING (z) IOiST C9ROOF CURB DETAIL - WOOD JOIST NO SCALE RTU WEIGHT SCHEDULE APPROXIMATE NEW UNIT BASE MARK EXISTING UNIT WEIGHT (LBS) Digitally si••— - Holland BASE WEIGHT (LBS) DM: ��thtary��� RTU-1 675 580 4.t. ,, G `!/ tlAv.,. RTU-2 1220 610 ii/ 1 '"�8Plig ;' RTU-3 1020 580 0 OREGON o) RTU-4 1350 580 �9 ce�ber�•� C' _RTU-5 1020 610 <E•1. HO°'P 5/22/2014 PI Project: DXL — WASHINGTON SQUARE TOO Sheet Number: 10206 SW WASHINGTON SQUARE ROAD D U N H A M MI TIGARD, OR 97223 Sheet Title: V S K Dunham Associates,Inc. 1 50 South Sixth Street/Suite 1100 M2 — MECHANICAL KEYNOTES AND SCHEDULES Minneapolis,Minnesota 55402-1540 PHONE 612.465.7550 Fax 612,465,7551 Project Number: Drawn By: Checked By: Date: WEB dunhameng.com 0415871-001 JPK GMS 05/22/14 mechanical•electrical consulting engineering WEIGHTS & DIMENSIONS 33-3/8 18481 NOTES: 1. DIMENSIONS ARE IN INCHES, DIMENSIONS iN I 1 ARE IN MILLIMETERS. ECONOMIZER HOOD (4061 2. l9 CENTER OF GRAVITY 4 (OPTIONAL) 3. y DIRECTION OF AIR FLOW _� •111111111111IL�_ `— 2555/8 --. 1 � 16521 10-7/8 "'�� RETURN AIA 12111 • ' 'I"�t\\`1„`��®/1'/'I/I/ .. ., AIR URN 11111] • • � E ALT l 4W DRAIN ECONDENSATE 214718 X BASEPAN 3/1 (1171 r 14511 161/8 } ,J" SUPPLY AIR16.112 AIRPLi _- 16731 /8-1/8 11171 iPlldSEE UTHRL)SE INE AIR . 12-1141 11591 I 13631 17711 I BASE CHART ] 6.111 /ff 1 + ... .. (1 17577 • . -� v 25 9MR I —3-3/8 (6361 —12-1/8+ 1851 CD 32.1/4 13011 18181 18-1/1 AI N TOP 14701 4-5/8 (1181 CONDENSER EE! = LECTRICAL OPTIONAL CONTROL BOX INDOOR BLOWER COIL DISCONNECT FACTORY ACCESS PANEL ACCESS IMO' OPTIONAL _=A• • II LOCATION INSTALLED • STALLED __R• DISCONNECT j Y INSTALLED IIL_J L11 _ IENCE H • TLET ,• 19.1/2 11911I 195} i/ 6-5/8 •8..� �..8 11681 raO0 • • L31773 : OO HANDLE HANDLE 46-3/4 743/8 111811 118881 LEFT FRONT I-i/4 1311 1 I FILTER ACCESS PANEL t E SID. I I (TOOL-LESS) COMP. CONDENSATE CONDENSER DRAIN I I ACCESS i COIL WTSIDE ' PANEL -� AIR INDOOR COIL i ACCESS PANEL -- I---1 153911 ® 1 j } - .j •i- r : ours SUPPLr AIA RIGHTNTETRIC ROL B 4 RELIEFiFLOw BACK Vertical Connections/Economizer 10-1/2 12651 29-114--- • �� 11431 I. •.. . . E STD I COMP. CONDENSATE CONDENSER DRAIN • ACCESS ,i' __— I 25-1/8 I PANEL COIL ' I6J81 33.3/1 RETURN 11-3/8— 16-1/1 I AIR I 18511 , 12891 I 11271 SUPPLY AIR • • 6-I/8 __— 0 1---1 D ® p !1551 —. — 6-5/8 -6 11681 11521 311/4 17931 Horizontal Connections/Economizer CONNECTION SIZES THRU-THE-BASE CHART THESE HOLES REQUIRED FOR USE A 1 3/8" [351 DIA FIELD POWER SUPPLY HOLE CR8TMPWRODIA01 UNIT J N 8 2• [511 DIA POWER SUPPLY KNOCKOUT THREADED WIRE REO'O HOLE 50HCOAO4 33 3/8 18 5/8 CONDUIT SIZE USE SIZES(MAX.) [841) [472] C 1 3/4. 1441 DIA GAUGE ACCESS PLUG W 1/Y ACC. 7/8' 122.21 50HCOA05 41 3/8 14 7/8 D 1/8' [221 DIA FIELD CONTROL WIRING HOLE X 1/2" 240 718. 122.21 [1051] [3711 Y • 3/4• (0077 POwEA 1 1/8. 128.41 50HCOA06 41 318 14 1/8 E 3/4'-14 NPT CONDENSATE DRAIN FOR -iHRU-THE-BASEPAN" FACTORY OPTION, [10511 [377] 0 2 1/2 ' [641 DIA POWER SUPPLY KNOCK-OUT FITTINGS FOR ONLY X 8 Y ARE PROVIDED SELECT EITHER 3/4.OR 1/2' • FOR POWER. DEPENDING ON WIRE SIZE C10230 Fig.1- Dimensions 50HCQ 04-06 22 WEIGHTS & DIMENSIONS (cont.) STD. UNIT CORNER CORNER CORNER CORNER C.G. HEIGHT UNIT WEIGHT WEIGHT (A) WEIGHT (B) WEIGHT IC) WEIGHT ID) _ _ LBS. KG. LBS. KG. LBS. KG. LBS. KG. LBS. KG. X Y Z 50HCOA04 495 225 130 59 118 54 118 54 130 59 35 3/8 [899] 23 3/8 [594] 18 3/8 [4671 50HCOA05 580 263 161 13 147 67 130 59 142 64 35 1/2 [902] 21 1/8 [556] 20 1/2 [521] 50HC0A06 610 217 165 15 152 69 141 64 152 69 35 3/4 [908] 22 1/2 [572] 20 3/4 [527] CORNER A CORNER B o 1111. � . . .od r100 .l. .l: . c0. . . . I FRONT 0 CORNER D CORNER C TOP C10231 Fig.2- Dimensions 50HCQ 04-06 444 \i1! 010577 Fig.3- Service Clearance LOC DIMENSION CONDITION 48—in.(1219 mm) Unit disconnect is mounted on panel A 18—in.(457 mm) No disconnect,convenience outlet option 18—in.(457 mm) Recommended service clearance 12—in.(305 mm) Minimum clearance 42—in.(1067 mm) -Surface behind servicer is grounded(e.g.,metal,masonry wall) B 36—in.(914 mm) Surface behind servicer is electrically non—conductive(e.g.,wood,fiberglass) Special Check for sources of flue products within 10—ft of unit fresh air intake hood C 36—in.(914 mm) Side condensate drain is used 18—in.(457 mm) Minimum clearance D 42—in.(1067 mm) Surface behind servicer is grounded(e.g.,metal,masonry wall,another unit) 36—in.(914 mm) Surface behind servicer is electrically non—conductive(e.g.,wood,fiberglass) NOTE:Unit not designed to have overhead obstruction.Contact Application Engineering for guidance on any application planning overhead obstruction or for vertical clearances. 23 WEIGHTS & DIMENSIONS (cont.) NOTES, ROOFCURB A UNIT SIZE 1. ROOFCURB ACCESSORY IS SHIPPED DISASSEMBLED. ACCESSORY 2. INSULATED PANELS, 1" THK. POLYURETHANE FOAM, 1-3/4 r DENSITY. 2„ 3. DIMENSIONS IN [ ] ARE IN MILLIMETERS. 1, CRRFCUR6001A01 4. ROOFCURB, 18 GAGE STEEL ON 14-CURB, AND 16 GAGE STEEL ON 24"CURB. [356] 50HCQA04-06 5. ATTACH DUCTWORK TO CURB. (FLANGES OF DUCT REST ON CURB) 2'—0° 6. SE'VICE CLEARANCE 4' ON EACH SIDE. CRRFCURBOO2A01 [610) 7. iii6' DIRECTION OF AIR FLOW. 8. CONNECTOR PACKAGES CRBTMPWROO1A01 AND 2A01 ARE FOR THRU—THE—CURB TYPE CONNECTIONS. PACKAGES CRBTMPWR003A01 AND 4A01 ARE FOR THE THRU—THE—BOTTOM TYPE CONNECTIONS. CONNECTOR D ALT ACCESSORY PKG.ACCO. B C DRAIN GAS POWER CONTROL HOLE POWER CRBTMPWR001A01 3/4' [19] 1,-9111,6" 1'-4" 11/4' NPT 3/4" [19] Vz' 112.7] 1/2" [12.7] • CRBTMPWR003A01 [551] [406] [44.5] 1/z' 112.71 NPT NPT NPT NPT 0 C C..) -ie. I ♦ , O /-UNIT \\ 0,0[61./34; ' / A' \ :2\1 GASKET `jNAILNI \ I (SUPPLIED WITH CURB) 1.� TYPICAL (4) SIDES 4 r fDUCT (117COl1N7ER FLASHING (FIELD SUPPLIED) \ (FIELD SUPPLIED) . A /-CL W--te \ / / / \, ROOFING FELT \F A \ (FIELD SUPPL[EO) a a�/ CANT STRIP SECTION "C-C" (FIELD SUPPLIED) 0'-3• -- •D• ROOFING MATERIAL SCALE 1.4 (76] \ �r�(FIELD SUPPLIED) AN(76] RETURN AI•. RIGID INSULATION OPENING 2'-7 S/B" -L1111111111111 0 LB 31 I (FIELD SUPPLIED) 1 SUPPLY AIR / 1'-1 7/16 OPENING C / [3411 / OPENING FOR BASEPAN ENTRY [{ / SERVICE (SEE NOTE 46) f d —--d -- , 0'-2 1/2' 4 (64] 0--0 7/16 / [71] Y'-7 13/16L-__. 1'1334]1 (/B.. / 0'-0 7/16' (BOLT HEADS) [5041 o- [11] 0"-3 i/4" (BOLT HEADS) / (631 �t 2-9• `F L230) (763 ' o- / SEE NOTE 42 " 0'-0 7/16" 3'-0• _D'-0 7/16• / , 1(1] [9143 ((1] / '-4 3/16 / (BOLT HEADS) (BOLT HEADS) / [106] A A / / !�` AIN( SISDE) / ( 0'-7 1/16• iI 1797 / I^ (INSIDE) 0'-0 1/4'177 I O B' L� O TYP [ 0'-4 9/16. \ \ Y 2 3/ ( \ I SUPPLY AIR RETURN AIR'. / •////// /. v� \•NI,\N....7 VIEW -A—A" 44N. Jo. HEAD OF BOLT TO BE ON `\\111I INSIDE OF FLANGE \v 40'-1 73/ % 117057 ♦ 3'-0 15/16 .. Typical corner fastening device ,.. . 111111 I 938] AREF : �, . 1767 14.d6 SEE VIEW 'B"��' / VIEW "B" ✓ (TAP. ALL CORNERS) C101034 Fig.4- Curb Dimensions 50HCQ 04-06 24 OPTION/ACCESSORY WEIGHTS OPTION/ACCESSORY WEIGHTS OPTION/ACCESSORY 04 05 06 07 08 09 12 lb kg lb kg lb kg lb kg lb kg lb kg lb kg Power Exhaust -vertical 50 23 50 23 50 23 50 23 75 34 75 34 85 39 Power Exhaust- horizontal 30 14 30 14 30 14 30 14 30 14 30 14 75 34 EconoMi$er(IV or 2) 50 23 50 23 50 23 50 23 75 34 75 34 115 52 Two Position damper 39 18 39 18 39 18 39 18 58 26 58 26 65 29 Manual Dampers 12 5 12 5 12 5 12 5 18 8 18 8 25 11 Hail Guard (louvered) 16 7 16 7 16 7 16 7 34 15 34 15 45 20 Cu/Cu Condenser Coil 35 16 35 16 35 16 95 43 95 43 95 43 160 73 Cu/Cu Cond.&Evaporator Coils 60 27 60 27 90 41 165 75 140 64 195 88 280 127 Roof Curb(14-in.curb) 115 52 115 52 115 52 143 65 143 65 143 65 180 82 • Roof Curb(24-in.curb) 197 89 197 89 197 89 245 111 245 111 245 111 255 116 CO2 sensor 5 2 5 2 5 2 5 2 5 2 5 2 5 2 p Electric Heater 30 14 30 14 30 14 30 14 45 20 45 20 25 11 Single Point Kit 10 5 10 5 10 5 10 5 12 5 12 5 25 11 Optional Indoor Motor/Drive 10 5 10 5 10 5 10 5 15 7 15 7 45 20 Motormaster Controller 35 16 35 16 35 16 35 16 35 16 35 16 35 16 Return Smoke Detector 5 2 5 2 5 2 5 2 5 2 5 2 5 2 Supply Smoke Detector 5 2 5 2 5 2 5 2 5 2 5 2 5 2 Non-Fused Disconnect 15 7 15 7 15 7 15 7 15 7 15 7 15 7 Powered Convenience outlet 35 16 35 16 35 16 35 16 35 16 35 16 35 16 Non-Powered Convenience outlet 5 2 5 2 5 2 5 2 5 2 5 2 5 2 Enthalpy Sensor 2 1 2 1 2 1 2 1 2 1 2 1 2 1 Differential Enthalpy Sensor 3 1 3 1 3 1 3 1 3 1 3 1 3 1 SAV System with VFD - - - - - - - - 20 9 20 9 20 9 NOTE:Where multiple variations are available,the heaviest combination is listed. 33