2Identify and Prepare Units1. Be sure power requirements match available powersource. Refer to the unit nameplate and wiring diagram.2. Remove front (40UV) or bottom (40UH) access panelsfrom the unit. Retain the 5/32-in. socket head fasteners andpanels for reinstallation later.3. Rotate the fan shaft by hand to ensure that fans areunrestricted and can rotate freely. Check for shippingdamage and fan obstructions.PHYSICAL DATAComponent weight data of 40UV,UH units is provided inTable 1.INSTALLATIONPlacing Vertical Units in Position1. Select the unit location; ensure that service clearance isprovided. Allow enough grille clearance to maintainunrestricted airflow. See submittal drawings and Fig. 1and 2 for dimensions.2. Make sure wall behind unit is smooth and plumb; ifnecessary, install furring strips on walls with irregularsurfaces or mullions. Furring strips must be positionedbehind mounting holes in unit. Fasteners, furring strips,and other seals (if required) must be field supplied.3. Remove all wall and floor moldings from behind the unit.4. Move unit into position. Unit must be snug against walland furring strips.5. Adjust unit leveling legs so unit is level. Unit must belevel for proper operation and condensate drainage.6. Using field-supplied fasteners, reach into unit and attachunit to the wall using the 3/4 in. mounting holes in theback panel.7. Protect the unit from jobsite debris. Do not allow foreignmaterial to fall into drain pan. Prevent dust and debrisfrom being deposited on motor or fan.Placing Horizontal Units in Position1. Select the unit location; ensure that service clearance isprovided. Allow enough grille clearance to maintain unre-stricted airflow. Make sure that ceiling is able to supportthe weight of the unit. See Fig. 3-5 for nominal unit weight.See submittal drawings and Fig. 3-5 for dimensions.NOTE: See page 23 for additional requirements for unitsducted to multiple openings.2. Ensure that bottom panels have been removed from unit.When unit is lifted, access to the 3/4 in. mounting holes isthrough the bottom of the unit. Hanger rods and fastenersand other required hardware must be field supplied.3. Using a forklift or other mechanical lifting device, raisethe unit to the mounting position. If forklift or otherlifting device is likely to contact a painted wall surface,protect the surface as necessary.4. Use rods and fasteners to suspend the unit at the mountingholes on the top of the unit. The unit must be suspended atthe 3/4 in. mounting holes; do not use any other locations.5. If desired, install field-supplied vibration isolators. Adjustisolators so unit is uniformly suspended and pitched.6. To ensure proper drainage and operation, ensure unit islevel and tighten all fasteners. DO NOT mount the uniton a slope. Pitch of horizontal suspended units canchange after coil is filled; recheck after filling coil.7. Protect the unit from jobsite debris. Do not allow foreignmaterial to fall into drain pan. Prevent dust and debrisfrom being deposited on motor or fan.Table 1 — Physical DataLEGENDDX — Direct Expansion*40UV only.†40UH 40 and 44 in. deep units only.**Weight based on damper-controlled unit with 5-row coil and factory-installedcontrols.Units must be installed level and plumb. Failure to do somay result in excessive vibration and/or premature failure.UNIT 40UV,UH 050* 075 100 125 150 200†NOMINAL AIRFLOW (Cfm) 500 750 1000 1250 1500 2000FANSQuantity 1 2 3 4 5 5Diameter (in.) 8.32 8.32 8.32 8.32 8.32 9.5Width (in.) 8 8 8 8 8 6FILTERSNominal Size (in.) (1 in. thick) 93 /4 x 241/ 4 93 /4 x 361/4 93/ 4 x 481/4 93/4 x 601/4 93/4 x 721/4 93/4 x 721/4Nominal Size (in.) (2 in. thick) 9 x 241/4 9 x 361 /4 9 x 48 1/4 9 x 601/4 9 x 721/4 9 x 721/4Quantity 1 1 1 1 1 140UV SHIPPING WEIGHT**(Approx lb)165/8 in. Deep Unit 330 400 480 590 660 —217/8 in. Deep Unit 340 410 490 605 675 —40UH SHIPPING WEIGHT**(Approx lb)301/2 in. Deep Unit — 420 500 620 690 —36 in. Deep Unit — 500 600 740 830 —40 in. Deep Unit — 530 640 790 880 102044 in. Deep Unit — — — — — 105040UV INSTALLED WEIGHT**(Approx lb)165/8 in. Deep Unit 315 380 460 570 640 —217/8 in. Deep Unit 325 390 470 595 655 —40UH INSTALLED WEIGHT**(Approx lb)301/2 in. Deep Unit — 405 480 600 670 —36 in. Deep Unit — 485 580 720 810 —40 in. Deep Unit — 515 620 770 860 100044 in. Deep Unit — — — — — 1030COIL WATER WEIGHT(Approx lb per row of coil) 1.0 1.5 2.0 2.4 2.7 2.7COIL CONNECTIONS (in. OD) Return SupplyWater Coils with 1 to 5 Rows 7 /8 7 /8Steam Coils (All Units) 7 /8 11 /8Suction LiquidDX Coils 7 /8 3 /8