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Report (33) RECE DEC 1 UIVED 2018 CITY OF TIGMtO BUILDING DIVISION AIR PRODUCTS SUBMITTAL Bldg. B Electric Heaters by Qmark Project: Oak Street Apartments (Tigard Apts) Project Address: 8900-9000 SW Oak Street Tigard, OR 97223 Architect: Kephart Engineer: System Design Consultants, Inc. General Contractor: AG Spanos Corporation Mechanical Contractor: Rite Way Heating and A/C Date: 6/13/2018 Project: Oak Street Apartments (Tigard Apts) Project ID: P17-1096 JOHNSON AIR PRODUCTS ''.1 ;r:_,,.7 Table of Contents Tab Submittal Spec/Sub Page# 1 Bldg. B Electric Heaters by()mark Per MO.1 Electric Heater N/A Bldg. B Qmark CWH Series Heaters- Submittal -Oak 4 Bldg. B Qmark MUH Series Electric Heaters- Submit 6 Project: Oak Street Apartments (Tigard Apts) Project ID: P17-1096 JOHNSON AIR PRODUCTS Spec Section: Per M0.1 Electric Heater Per MO.1 Electric Heater Schedule. Sub Section: N/A Submittal Name Bldg. B Electric Heaters by Qrnark Vendor/Subcontractor Johnson Air Products Jason Elliott PRODUCT SUBMITTAL SHEET Capacities PiIARI(® CWH1000 SERIES 0 500,562,750,900,1000, FAN-FORCED WALL HEATERS A Marley Engineered Products Brand 1125,1500,1800 or[22000 Watts 120,1208,240 or 277V@ 10 Onl `. Thermostat Range:40°-85°F Air Movement:65 CFM Job Name: Oak Street Apartments (Tigard Apartments) Bldg. B Submitted By: Date: Location: Tigard, OR Jason Elliott 05/30/2018 Architect:Kephart Engineer:System Design Consultants Approved By: Date: Contractor: Rite Way Heating Submitted By:Jason Elliott Date: 05/30/18 Item QTY Catalog Tag Watts Volts PH AMPS Weight Number 1 2 CWH1208DSF EH-01 2000 208 1 9.6 N/A 0 ACCESSORIES P11g I Thermostat Item QTY Part Ta WyStd.IntegIntegral Number 0 M4. Marie „ f 4 Engineered Products 4i fp 470 Beauty Spot Road East ___ _____— Bennettsville,South Carolina 29512 1T www.marleymep.com ° IE� us ZSS-QCWH2 9-2015 • Catalog Number Volts Amps Watts 1 BTU/HR (Wire Size ' ,2` 011 I F-t' -I - CWH1101DSF 120 8.4/4.2 1000/500 3413/1706 14AWG CWH1151DSF 120 12.5/6.3 1500/750 5120/2560 12AWG 0 I s, CWH 1201 DSF 120 15.0/7.5 1800/900 6143/3072 12AWG 240 8.4/4.2 2000/1000 6826/3413 14AWG €i0 CWH1202DSF f:= — 1 208 7.3/3.6 1500/750 5120/2560 14AWG 10 1 ) 11 y'3�7?tes�7 ...ai7rti CWH1207DSF 277 7.3/3.6 2000/1000 6826/3413 14AWG � �+ -� I 240 6.3/3.2 1500/750 5120/2560 14AWG F -, a , 277 5.5/2.75 1500/750 5120/2560 14AWG 1, ' ) CWH1157DSF ; 240 4.7/2.4 1125/562 3840/1920 14AWG r NA CWH1208DSF 208 9.6/4.8 2000/1000 6826/3413 14AWG Accessories I I "14• I CWHSM --".111face Mounting Frame(Accessory)Order Separately- I • 'r ite s' 12-1/2" ' : ••., i X 10-3/8"(264mm) ► mm) 1 , CWHS1 1"(25mm)Recess M, . ' I essory)Order Separately-Northern White CWHS2 " Recess Mounting Frame(Accessory)Or. ••. .tely-Northern White =; 1T Tamper resistant front cover-Northern White ® . -1- r Standard color is Northern White. ARCHITECT'S AND ENGINEER'S SPECIFICATIONS* w/Std. Integral Thermostat The heating equipment shall include an electric automatic MOTOR AND CONTROLS: The fan motor shall be impedance fan forced air heater suitable for small area heating,as protected,permanently lubricated.Fan control shall be of manufactured by QMark®,a Marley Engineered Products® the bi-metallic,snap-action type and shall activate fan after Brand,Bennettsville,SC. The heater shall be designed for wall heating element reaches operating temperature,and continue mounting,recess or surface. Heaters shall be cETLus listed. to operate the fan after the thermostat is satisfied and until all heated air has been discharged.The thermostat shall be BACK BOX: The back box shall be designed as a recessed single-pole type on all models.Thermal cutout shall be self- rough-in box in either masonry or frame installations and is hold (manual-reset)type designed to shut off heat in the event also used when surface mounting frames are used in surface of overheating.The fan shall be four-bladed aluminum.A back- mounting installations. The back box shall be heavy gauge galvanized steel and shall contain knockouts through which up(End of Life)thermal fuse shall be provided for additional safety. power leads enter. SURFACE MOUNTING FRAME: The surface mounting frame INNER FRAME ASSEMBLY: The heater assembly,which fits shall be of heavy gauge steel designed to mount around the into the back box,shall consist of a heavy gauge steel fan back box for a finished surface installation.Slot knock outs panel to which all of the operational parts of the heater are shall be provided for power supply conduit. mounted.The inner frame assembly shall be completely pre- wired. FRONT COVER: The louvered front cover shall be of heavy gauge steel with a powder paint finish. A plug button will be HEATING ELEMENT: The heating element shall be of the provided to replace the thermostat knob and render the unit non-glowing design consisting of an 80/20 nickel-chromium tamper-resistant. resistance wire enclosed in a steel sheath to which plate fins are copper brazed.The element shall cover the entire air FINISH: All sheet metal parts,except the galvanized steel discharge area to ensure uniform heating of all discharged air. back box,shall be phosphatized,then completely painted by a It shall be warrantied for 5 years. powder paint process. ON/OFF SWITCH: A double-pole,single throw on/off switch *In the interest of continual improvements in product and performance, shall be mounted on the back box for positive disconnect of Marley Engineered Products reserves the right to change specifications power supply. It will be completely concealed behind the without notice. front cover. 0 ZSS-QCWH2 9-2015 SUBMITTAL SHEET E III - -a- MUH SERIES = MARK® MUH y A Marley Engineered Products Brand® 1 m _ UNIT HEATERS MIMI = .1.1IS 11111111111111111 1111 I c � us 0 File#E27609 N 0Z Z Pii JOB NAME: Oak Street Apartments(Tigard Apartments)Bldg.B LOCATION: Tigard,OR m II ARCHITECT: Kephart ENGINEER: System Design Consultants A CONTRACTOR: Rite Way Heating r C SUBMITTED BY' Jason Elliott Z DATE: 5/30/18 —I IM CATALOG GRILLE CEILING ITEM QTY. NUMBER TAG WATTS VOLTS 0 AMPS FINISH MOUNT m 1 1 MUH0381 EH-02 3000 208 1 14.5 Std. N/A 73 1 5 MUH0381 EH-03 3000 208 1 14.5 Std. N/A ITEM QTY. CAT NO TAG DESCRIPTION 1 1— B-10 —EH-02 Univ.Wall/Ceiling Hanging Brac. ACCESSORIES 2 1 UHMT1 EH-02 Single Pole Integral Thermostat AND 3 5 B-10 EH-03 Univ.Wall/Ceiling Hanging Brac. CONTROLS 4 5 UHMT1 EH-03 Single Pole Integral Thermostat SUBMITTED BY: DATE APPROVED BY: DATE Jason Elliott 5/30/18 ZSS-QMUHO 06-17 CI) W LUNMI MARK .2-speed fan selector switch(25 to 50 KW models). V) AMarky Engineered Products Brand • Fan delay feature eliminates cold drafts. Element heats up = 470 Beauty Spot Rd.E,Bennettsville,SC 29512 = visit www.qmarkmep.com for more info before fan cuts in,then fan continues to distribute heat 2 ARCHITECT'S AND ENGINEER'S SPECIFICATIONS* after element shuts off. • Ruggedly built,yet lighter weight for easier installation. No • Unit mounts either horizontally or vertically.Totally versatile. For factories, piping flutes,valves,or traps. warehouses,garages,stores,shipping rooms,power stations.Can be used for . Individually adjustable discharge louvers to control air flow. primary,supplementary,spot,or dual-system heating. • Choice of optional diffusers for variety of air patterns, • Wide range of optional control kits are field installable, increasing the MUH maximizing heat concentration and coverage in the vertical adaptability to the specification market. position. • Forced air unit heater with 10 power ratings;from 3KW to 50 KW heating output; , Meets all UL, NEC,and OSHA requirements. 208,240,277 and 480V, 10,230 to 170,500 BTU/hr. •32 compatible models(no need to try to assemble a heating system from 70 or 80 models!) • Heavy gauge die-formed steel housing.Two-toned,smartly styled with stainless steel louvers. ('': -'-i".:---------- •Advanced pull-through air flow design draws air across heating element for more even air distribution and cooler element operation. H • Specially designed venturi outlet to meet that added throw as required in vertical position. • Branch circuit fusing(when required). •Completely enclosed fan motor. I d 1-• or 3-phase wiring on 5 through 10 KW 208/240V and 15 KW 208V units(field '� interchangeable). •Aluminum-finned,copper clad steel sheath heating element has longer useful 0\ W life,because of cooler sheath temperature and faster heat dissipation. DIMENSIONS •24V control transformer standard on most models,providing a safer and more CAT.NO. I HEIGHT I WIDTH I DEPTH accurate means of temperature control.3KW and 5KW,208-277V,have line I MUH-03 16" 14" 71/2" 1 voltage controls as standard(24V control available on made-to-order basis). MUH-07&10 213/4" 19' 71/2" •Automatic reset linear thermal cut-out,capillary type,provides protection over MUH-15&20 213/4" 19" 123/4" entire length of element areas(Manual reset protection available on made-to- MUH-25&30 30" 265/8" 113/4" order basis). MUH-40&50 30" 265/8" 171/8" SELECTION CHART ELECTRICAL DATA 2 STAGE AIR DELIVERY DATA FM MOTOR DATA MAtOMIr EFFECTIVE HORI. wiRE *STALLEDCAT.NO. VOLTS I. PHASE I... KW I..... R I AMPS(3) ICO WILT 1(1) I ECONtROI.I CMS) ( NW) I ATM VOLTS I RPM(2) ' HP I 1 VERT I THROW I WII w/gRACK ',..TUH0381.. 208 10 3• :..102 145 .. /A 350 . 800 .. M1111111111111110111111111111=111111' 111111111MIOMPAIIIMIIM .. U1-103-21 208/240 10 2.2/3.0 7.5/10.2 11.0/12.5 206240 N/A 350 800 27 208/240 1600 1/100 8 9 12 AWG 12 27 •'..03-71 277 10 3.0 10.2 11.0 277 N/A 350 800 27° 277 1600 1/100 8 9 12AWG 14 MUH.., 347 10 3.0 10.2 8.6 24 N/A 350 800 27° 347 1600 1/100 6 9 12 AWG 1• 27 MUH0341'- 480 30 3.0 102 3.6 24 N/A 350 800 27" 480 1600 1/100 8 9 12 A .'4 27 MUH0361 •'. 30 3.0 10.2 2.9 24 N/A 350 800 27° 600 1600 1/100 8 9 12 G 14 27 MUHO5-81 208 1-30 5.0 17.0 24.0 208 58 350 800 45° 208 1600 1/100 8 ' AWG 10 27 MUH06.21 208240 6 3.7/5.0 12.6/17.0 18.021.0 208240 5A 350 800 45° 208/240 1600 1/100 8 12 AWG 10 27 MUH05-31 277 10 5.0 17.0 14.4 277N/A 350 800 45° 277 1600 1/100 8 12 AWG 10 27 MUHOS31 347 10 5.0 17.0 14.4 244N/A 350 800 45° 347 1600 1/100 8 12 AWG 10 27 MUH05-41 480 30 17.0 6.0 24 N/A 350 600 45" 480 1600 1/100 . 12 AWG 14 27 MUH05-61 600 30 5.0 17.0 4.8 24 N/A 350 800 45" 600 1600 1/100 • 12 AWG 10 27 MUH-078 208 1-30 7.5 • 36.0 24 58 650 970 37° 208 1600 1/30 9 14 18 AWG 6 38 MUH-07-2 208/240 1-30 5.6/7.5 19.125.. 27.0/31.3 24 58 650 970 37" 208/240 1600 'S 9 14 18 AWG8 38 MUH-07-7 277 10 7.5 25.6 - 7.0 24 5B 650 970 37" 277 1600 1/30 9 14 18 AWG8 38 MUH-07-3 347 10 7.5 25.6 2.... 24 5B 650 970 37° 347 1.•,• 1/30 9 14 18 AWG 14 38 MUH-07-4 480 30 7.5 25.6 90 24 58 650 970 37° 480 -.•• 1/30 9 14 18 AWG 14 38 MUH-07-6 600 30 7.5 25.6 7.3 4 58 650 970 37° 600 1600 1/30 9 14 18 AWG 14 38 MUH-108 208 1-30 10.0 34.1 48.0 24 5B 650 970 49° .2 1600 1/30 9 14 18 AWG4 38 MUH-10-2 208/240 1-30 7.5/10.0 25.6/34.1 36.0/42.0 24 B 650 970 49' 08/240 1600 1/30 9 14 18 AWG 6 38 MUH-10-7 277 10 10.0 34.1 36.0 24 5 -'. 650 970 49' 277 1600 1/30 9 14 18 AWG6 38 MUH-163 347 10 10.0 34.1 28.8 24 5B 650 970 .•' 347 1600 1/30 9 14 18 AWG 14 38 MUH-104 480 30 10.0 34.1 12.0 24 5B • 970 49° 480 1600 1/30 9 14 18 AWG 14 38 MUH-108 600 30 10.0 34.1 9,7 24 58 • • • • 49" 600 1600 1/30 9 14 18 AWG 14 38 MUH-158 208 1-30 15.0 51.2 72.0 24 5A 910 •0 52° 208 1530 1/20 11 20 35 AWG 2 53 MUH-15-2 208/240 30 112/15.0 38.2/51.2 31.3/36.1 24 5C 9 1.-•... 52' 208/240 1530 1/20 11 20 35 AWG 6 53 MUH-15-4 480 30 15.0 51.2 18.0 24 5C '10 1640 52' 480 1530 1/20 11 20 35 AWG 10 53 MUH-15-6 600 30 15.0 51.2 14.5 24 5C 910 1640 1..° 600 1530 1/20 11 20 35 AWG 12 53 MUH-20-8 208 30 20.0 68.2 56.0 24 A 1320 2060 48° 208 1500 1/10 12 23 41 AWG 4 60 MUH-20-2 208/240 30 15.0/20.0 512/68.2 41.2/48.0 24 5C 1320 2060 48' •.'".• 40 1500 1/10 12 23 41 AWG4 60 MUH-20-4 480 30 20.0 68.2 24.0 Sc 1320 2060 48" 480 1500 1/10 12 23 41 AWG 10 60 MUH-20-6 600 30 20.0 68.2 19.3 24 5C 1320 2060 48° 600 1500 1/10 12 23 41 AWG 12 60 MUH-25-4 208/240 30 1825 0 635.2 2 52.0•0• 24 5C 2100/1800 21002030 38°/44° 208/240 16.0 50 AWG 3 93 MUH-254 480 30 25.0 85 2 '•0 24 SC 2100/1800 2100/2030 38°/44° 480 1600/1375 50 AWG 8 93 MUH-25-6 600 30 25.0 85.2 24.2 24 5C 2100/1800 21002030 38"/44° 600 1600/1375 , 50 AWG10 93 MU1-I-30-8 208 30 30.0 • .3 84.0 24 5A 2100/1800 21002030 45 953° 208 1600/1375 1/4 12 20 50 AWG 1 93 MUH-30-2 208/240 30 22.5/30.0.. "6.7/102.3 63.0/72,3 24 58 2100/1800 21002030 45'/53° 208/240 1600/1375 1/4 - 20 50 AWG 2 93 MUH-30-4 480 30 •1 102.3 36.0 24 5C 2100/1800 2100/2030 45 953° 480 1600/1375 1/4 12_.... 20 50 AWG 6 93 MUM-308 600 30 - •.0 102.3 29.0 24 5C 2100/1800 2100/2030 45'/53' 600 1600/1375 1/4 12 20 50 AWG8 93 MUH-40-2 208/240 8 30.0/40.0 1023/136.4 83.4/96.4 24 5A 3000/2600 3260/2900 42'/49' 208/240 1525/1420 1/2 15 2:41411 60 AWG 1/0 114 MUH-01}4 480 0 40.0 136.4 48.5 24 58 3000/2600 3260/2900 42°/49° 480 1525/1420 1/2 15 28 60 AWG 4 114 MUH-40-6 600 30 40.0 136.4 38.7 24 5A 3000/2600 3260/2900 42'/49° 600 1525/1420 1/2 15 28 AWG6 114 MUH-508 18 30 50.0 170.5 139.0 24 5A 3000/2600 3260/2900 53 961" 208 1525/1420 12 15 25 60 - 4,5 114 MUH-50- 208/240 30 37.5/50.0 127.3/170.5 104.2/120.4 24 5A 30002600 32602900 53 961° 208/240 1525/1420 12 15 25 60 AWG`.'• 114 MU . . 480 30 50 0 170.5 60.2 24 5A 3000/2600 3260/2900 53'/61' 480 1525/1420 1/2 15 25 60 AWG 4 ..114 • -50-6 600 30 50.0 170.5 48.3 24 5A 30002600 32602900 53'/61° 600 1525/1420 1/2 15 25 60 AWG 3 1 Note; 1. All standard units are supplied with a low voltage control transformer and contactor(24V)except 3. On dual phase units,maximum amp draw is listed for respective voltage. MUH-03&05,208,240&277 volt models.Low voltage control on these units are available on made 4. 25 thru 50 KW models have two speed motors and dual CFM ratings. to order.All units are also available on special order for 120 volt control;internal and transformer or 5A. Standard. external without transformer. 5B. Optional-made to order-amp load unbalanced on 3 Phase. 2. On dual voltage units;CFM.FPM.and RPM are shown at higher voltage. 5C.Optional-made to order-amp load balanced on 3 Phase. MUH SERIES UNIT HEATER 1' W >1 h D 1 DIMENSIONS / \ -r CATALOG NO. HEIGHT(IN) WIDTH(IN) I DEPTH(IN) 4► MUH03+BS- 16 14 7-1/2 \------- MUH07&10 21-3/4 19 7-1/2 -------'/ H MUH15&20 21-3/4 19 12-3/4 MUH25&30 30 26-5/8 11-3/4 ,C MUH40&50 30 26-5/8 17-1/8 OPTIONAL FIELD-INSTALLED CO ,OLS CATALOG NO. UPC DESCRIPTION ELECTRICAL RATING COMPATIBLE WITH y UHMT1 6 8536015241 7 Single Pole Internal Thermostat-Temp 25A @ 120,240VAC Res. All MUH Series Heaters Range:40°-85°F 22A @ 277VAC Res. (except MUH0521 3 PH,MUH0581 3 PH which use UHMT2) Stage Internal Thermostat Temp 25A @ 120,24OVAC Res. MUH0521 3 PH,MUH0581 3 PH,MUH158,MUH2O8,MUH252,MUH302, Two Sta U' 2 6 85360 15242 4 Ranee: l T rmo 22A @ 277VAC Res.125VA MUH308,MUH402,MUH404,MUH406,MUH502,MUH504,MUH50. MUH508 MCFS 6 85360 04637 2 Internal Summer Fan Switch 250,480, Pilot Duty 6A,600VAC Res.2 HP All MUH Series Heaters 600V.A.C.1,2 OR 3 PH MRFS1 6: 60 04708 9 Remote Summer Fan Switch(Line 2 HP,250-480VAC All MUH Series Heaters Voltage) MRFS2 6 85360 0 6 Remote Summer Fan Switch with Relay 6 AFL,35 ALR,250VAC,60Hz All MUH Series Heaters(except MUH0321 , . 0371,MUH0381,MUH0521, (24V Coil-Single Pole Normally Open) 3 AFL,18 ALR,480VAC,60Hz MUH0571,MUH0581)Units unless o. al control transformer is supplied Heat Recovery Thermostat with Relay 6 AFL,35 ALR,250VAC,60Hz All MUH Series Heaters(except 1H0321,MUH0371,MUH0381,MUH0521, MHRT 6 85360 04694 5 4V Coil-Single Pole Normally Open)Hi- 3 AFL,18 ALR,480VAC,60Hz MUH0571,MUH0581)Un' .nless optional control transformer is supplied 120°F,Low-60°F MUH0321,MUH034 , H0371,MUH0381,MUH0521,MUH0541,MUH0571, MPDS25 6 85360 04703 4 Power Dr:.nnect Switch(3-Pole) 30A @ 600VAC,Res. MUH0581, 173,MUH074,MUH076,MUH104,MUH106,MUH154, MUH156,MUH2O4,MUH2O6 M . 2,MUH077,MUH078,MUH102,MUH103,MUH107,MUH108, MPDS60 6 85360 047041 Power Disconnect Sw .•(3-Pole) 80A @ 600VAC,Res. H152,MUH2O2,MUH2O8,MUH252,MUH254,MUH256,MUH304, MUH306,MUH404,MUH406,MUH504,MUH506 NOTE:Any field installed options assembled in the factory require added surcharge.Se- •ice book for charges.MPDS60 disc. ect switch is not suitable for field installation on 7.5kw and 10kw unit heaters. DIFFUSER SELECTOR TABLES FOR VERTICAL MOUNTING I1 I MAX. I CATALOG I I I MOUNTING NO DESCRIPTION cele 0G an_ HEIGHT IAt DIMENSION DIFFUSER PATTERN AND AREA NONE 1103&MUH05 9 18 26 NONE MUH07&MUH10 14 NONE WITHOUT DIFFUSER MUH15 2035 40 NONE No diffuser needed where a straight downi MUH2O _ 23 .III II air pattern is required.For maximum.' row, 0 NONE remove louvers.My of three diff can be MUHMUH25 23 20 63 55 NONE added to basic he. NONE MUH40 28 70 63 NONE MUH50 25 MLDS MUH03&MUH05 9 25(A) 12(B) MLDM MUH07&MUNI 0 14 39(A) 19(B) MLDM DIPe• directionallVER(stra(straight llil e)air flow as in air MUH2O 20 56(A) 28(B) VIII II A B MLDM urtain application over doorways.Rectangular MUH25 23IIIIMIIIIIIIIIIIIM MLDL coverage,Louvers can be turned in either direc- MUH30 20 72(A) 36(B) .- MLDL ' tion. Fir/ MUH40 24 88(A) 44(B) • DL MUH50 22 80(A) 40(B) MUH SERIES UNIT HEATER OPTIONAL MOUNTING BRACKETS BRACKET SIZE DIMENSION 3-20 kW(IN.) 25-50 kW(IN.) --1. CATALOG NO. I UPC I COMPATIBLE WITH SHIP WT(LBS) A 7-1/4 9-7/16 B10 6 85360 15229 5 MUH03-10 8 B 9-1/2 14-3/8 0 6 85360 15230 1 MUH15&20 10 C 7-1/4 121/8 B31 6 85360 15231 8 MUH25&30 13 D 11-5/16 2-1/16 E 2-1/4 3 B50 6 85360 15232 5 MUH40&50 15 L 20-1/2 28-15/16 M 9-15/16 14-15/16 N 3-1/4 4-1/2 OPTIONAL CEILING MOUNTING BRACKETS mu CATALOG NO. UPC COMPATIBLE WITH SHIP WT.(LBS) 11111 CM610 6 85360 15236 3 MUH03-10 3 Mik CMB20 6 85360 15237 0 MUH15&20 4 CMB30 6 85360 15238 7 MUH25&30 5 CMB50 6 75360 15239 4 MUH40&5 i 6 \ \ I _ VSICIF OPTIONAL VERTICAL CEILING MOUNTING BRACKETS eine=w lear CATALOG NO. UPC I COMPATIBLE WITH SHIP WT.(LBS) VDMB5 6 85360 15245 5 1PF MUH03-05 5 UM VDMB20 6 85360 15246 2 MUH07-20 7 VDMB50 6 85360 15247 9 MUH25-50 9 MOUNTING LIMITATIONS:Unit heaters should not.•used in potentially explos e atmospheres.The finish is not intended for direct salt spray exposure in marine application .r the highly corrosive atmosp •es of swimming pools,chemical storage bins, E etc.Do not install unit heaters above recom • ded maximum mounting height.S tructions must not block unit heater air inlet or discharge.Heaters must be mounted at st 7 ft.above the floor to prevent acci.. tal contact with the heating element or fan blade which could cause injury. A � 411S4iss44 FACTORY INSTALLED OPTIONS FOR CONTROLS&ACCESSORIES 1-1/2" 11 DESCRIPTION MUH03&05(208,208/240,277V Supply) 24 or 120V Control Transformer and Power Contactor 24 or 120V H.C.Power Contactor ` M MUH03&05(480V Supply)&MUH07 thru MUH50 Optional 120V Control N C 2-Stage Control of Elements(See Note 5) �- Manual Reset O r 3/4° Outlet Mesh(Bird Screen)For all MUH Heaterskt NOTE:Any factory-installed options require added surcharge.See price book for charges or contact factory. 1-1/2"