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FIG. 2 

 

 

START-UP

 

 

This product has been assembled and tested at the 
factory prior to shipping. The following procedures 
should be performed to assure its performance. Before 
continuing with the start-up, it is important to recognize 
the safety controls furnished with the unit. 
 

 

 
 

 
 

NOTE 

 

For accessory installation, reference Accessory 
Installation Supplement. 

 

For heated products, reference Heated Products 
Supplement.

 

D.  Check all field wired components “if supplied” are 

wired correctly. 

E.  Check that the inlet air supply and the discharge air 

supply are free of obstructions. 

F.  Check that all air filter(s) and/or air intake grille(s) are 

in place and installed properly, as originally shipped. 

G.  Verify voltage to the product once more and turn 

power on. 

H.  Regardless of whether the product is mounted on the 

inside or outside of the door opening, set the air 
directional vanes in the discharge nozzle slightly 
outward to approximately 10-15° towards the 
outside, or the wind load. (FIG. 3). 

 
 

 

 
 
 
I. 

For products with control panels, turn the HOA 
(Hand-On-Auto) selector switch to “On” position and 
open the door to energize the product. For products 
without a control panel or an On/Off switch, open the 
door to energize the product. 

J.  If heated products are installed, reference 

Heated 

Products Supplement

K.  For three phase units, verify direction of rotation of 

blower wheels (note direction arrows on the blower 
wheel housing). Correct if needed by changing 
polarity of three phase power. 

L. 

VERY IMPORTANT

 Using a clamp meter, measure 

the amperage to each motor and ensure that they do 
not exceed the amperage listed on the product label. 

M.  If applicable, adjust the air intake grille(s) such that 

the output air stream reaches the floor. For 
temperature control and environmental separation 
applications, the air stream should reach the floor 
with sufficient strength to create an air seal around 
the door opening without creating turbulent mixing of 
the inside and outside air. For flying insect control 
applications, the air stream should reach the floor 
with maximum strength. If after proper installation 
and adjustment, the product appears to be producing 
too little or too much air for the application, contact 
the manufacturer.  

 

 

 WARNING 

Prevent hazard of electrical shock. More than one 
disconnect switch may be required to de-energize this 
product. 

 

 WARNING 

The following items must all be completed by a 
qualified installer and checked off when completed 
 
A.  Re-check that the product has been installed 

properly and is level and secure. 

B.  Check all terminal screws are tight and field wiring 

is connected in accordance to National Electrical 
Code and wired per the enclosed wiring diagram. 
For electric heated models, ensure that the coils 
are secured and not touching each other on any 
metal surface. 

C.  Verify proper voltage prior to powering the 

product. (See product label for reference). 

FIG. 3 

Summary of Contents for WMH Unheated Series

Page 1: ...without notice Such revisions do not entitle the buyer to corresponding changes improvements additions or replacements for previously purchased equipment MARS AIR SYSTEMS LLC GARDENA CA USA WMH Unheat...

Page 2: ...tice Such revisions do not entitle the buyer to corresponding changes improvements additions or replacements for previously purchased equipment MARS AIR SYSTEMS LLC GARDENA CA USA Table of Contents Pa...

Page 3: ......

Page 4: ...see table above for models available CSA Certified to conform to UL 507 US and CSA 22 2 Canada Standards Indoor Outdoor Use Top and wall mounting holes provided 5 8 Cabinet has sufficient strength fo...

Page 5: ......

Page 6: ...nged door type door limit switch installation FIG 1 2 Use light gauge materials when field fabricating brackets to activate and deactivate the door limit switch s FIG 2 Figure 2 also shows the typical...

Page 7: ...6 STD SHOWN 3 Extended Wall Mounting For Tandem Mounting of air curtain over sectional style door use either wall mounting angle brackets or threaded rods 4 Top Mounting Brackets For overhead installa...

Page 8: ...s The WMI WMH Series can be configured with Flat Bank or V Bank Filter Sections as options GENERAL SAFETY INFORMATION Use this product only in the manner intended by the manufacturer If you have any q...

Page 9: ...s of the housing Note Bracket Support mounting is not generally recommended for Air Curtains equipped with steam or hot water coils Overhead installation using threaded rods with independent suspensio...

Page 10: ...blower wheels note direction arrows on the blower wheel housing Correct if needed by changing polarity of three phase power L VERY IMPORTANT Using a clamp meter measure the amperage to each motor and...

Page 11: ...all the product reverse the procedures above 8 Reconnect the power source to the product 9 If you have any questions regarding the maintenance of the product contact the manufacturer SPECIAL APPLICATI...

Page 12: ...bstruction on intake or discharge Remove obstruction or move air curtain Power leads out of polarity Switch power leads to correct polarity 3 phase models only Blower motor rotating below normal speed...

Page 13: ...ema 1 1 115 1 1 6 2 4 03 015 7124 1096 Genteq Nema 1 1 208 230 1 6 5 9 2 03 015 Nidec Nema 1 1 208 230 1 4 3 6 5 03 014 K55BWJZB 2362 US Nema 1 1 115 1 1 2 1 03 015 US Nema 1 1 208 230 1 3 2 6 3 Black...

Page 14: ...ninterrupted or error free operation of Mars product Under no circumstance is Mars liable for any of the following 1 Third party claims against you for damages or 2 Special incidental or indirect dama...

Page 15: ...CLUDES A Air curtains for pedestrian entrances B Air curtains for vehicular entrances C Air curtains for large loading dock doors 1 2 RELATED SECTIONS A Section 05 50 00 Metal Fabrications Concealed s...

Page 16: ...for Forced Circulation Air cooling and Air Heating Coils F CRN Canadian Registration Number Coil G ANSI Z223 NFPA 54 National Fuel Gas Code H NEC National Electric Code 1 4 SUBMITTALS A Submit under...

Page 17: ...on B Installer Qualifications Minimum five years documented experience installing products specified in this Section 1 6 DELIVERY STORAGE AND HANDLING A Store products in manufacturer s unopened packa...

Page 18: ...s indicated d Electrical Characteristics 208 230V AC three phase 19 0 15 8 Amp full load per motor fan e Electrical Characteristics 460V AC three phase 7 9 Amp full load per motor fan f Electrical Cha...

Page 19: ...vanes with a plus minus 40 degree sweep front to back 2 Air Velocity at Nozzle a WMH 96 2 99 Inch 2516 mm Wide Units 3732 feet min 18 9 m s two 5HP motor fan assemblies b WMH 120 2 123 Inch 3126 mm W...

Page 20: ...coils for field mounting on air intake side of the air curtain cabinet with opposite end connections 1 Output Air curtain manufacturer s standard one row coils 2 Output Air curtain manufacturer s stan...

Page 21: ...ch is used to automatically start and stop the air curtain Thermostat is included with optional motor control panel for field installation Provide motor control panel as follows 1 Thermostat Wall moun...

Page 22: ...3 1 EXAMINATION A Verify that required utilities are in correct location and are of correct capacities for specified products B Verify openings to receive air curtains are plumb level square accurate...

Page 23: ...asuring air temperature 6 inches off the floor Optimal reading is halfway between the temperature inside and outside the building 3 4 CLEANING A Clean air curtains promptly after installation in accor...

Page 24: ...ions do not entitle the buyer to corresponding changes improvements additions or replacements for previously purchased equipment MARS AIR SYSTEMS LLC GARDENA CA USA Reference Links Link Description ht...

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