. . . . . . . . . . . . . . . . . . . . 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-78 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Step 1 — Inspect Shipment . . . . . . . . . . . . . . . . . . . . . . 1 Step 2 — Place, Mount and Rig Unit. . . . . . . . . . . . .2 •PLACING UNIT • MOUNTING UNIT • RIGGING UNIT Step 3 — Cooler Fluid

. . . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21 Step 1 — Inspect the Unit. . . . . . . . . . . . . . . . . . . . . . . . . . 6 Step 2 — Install Combination Roof Curb (62EB-EU Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Step 3 — Install Drop in Damper Box (62EB-EU Units) . . . . . . . . . . . . . . . .

x Depth) (in.) 22.5 x 2 29.0 x 2 29.0 x 3 40.0 x 1.5 40.0 x 1.5 40.0 x 3 Nominal Drive Motor Hp N/A N/A N/A 1/6 1/6 1/6 SUPPLY/EXHAUST AIR FAN Qty…Type Drive Type Fan Isolation Wheel Dimensions (Diam. x Width) Nominal Motor Hp 2….Forward Curved Centrifugal Direct Adjustable Belt Drive Neoprene Pads 5.5 x 5.5 9 x 7 9 x 7 12 x 12 12 x 12 12 x 12 1/4 1/2 1 1 2 2 FILTERS (optional) Type 2-in. Pleated — 30% Efficiency Exhaust Air...Qty...Size (L x W x D) (in.) 1….12 x 20 x 2 1….18 x 25 x 2 1….18 x 25

24 — 62MD,ME075,120 Coupled with Carrier 48/50PG03-14 Vertical Discharge Rooftop Unit 23 Accessory Transition ERV Wheel must be watertight) Rooftop Unit Accessory Transition (Includes front panel) 62M Unit Rooftop Unit ERV Curb Locator pieces (included with ERV curb, 62M075-120 ERV Unit LEGEND ERV — Energy Recovery Ventilator NOTE: When using a 62M ERV unit coupled with a Carrier rooftop unit, the rooftop factory or field- installed economizer cannot be used. TOP VIEW ROOF CURB LOCATION DETAIL E

POWER SUPPLY — The electrical characteristics of the available power supply must agree with the unit nameplate rating. Supply voltage must be within the limits shown. See Tables 2 and 3 for electrical and configuration data. ELECTRICAL CONNECTIONS — The ERV unit must have its own electrical disconnect box. If the disconnect option has not been ordered from the factory, it must be field supplied and installed per local codes. See Tables 2 and 3. If the ERV unit has an electric pre-heater factory

wg) NOTE: Fan data includes pressure drop for 30% efficient 2-in. filters. Fig. 59 — 62M075 Supply Air Fan Performance Curves 1200 1000 Airflow (cfm) 800 600 400 200 0 External Static (in. wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1136 rpm: 2 turns 1081 rpm: 3 turns 1010 rpm: 4 turns 946 rpm: 5 turns NOTE: Fan data includes pressure drop for 30% efficient 2-in. filters. Fig. 60 — 62M075 Exhaust Air Fan Performance Curves 63 1575 1375 1175 975 775 575 375 External Static (in. wg) 1448 rpm: 2 turns

For 4-pipe systems, select either of two split-coil options. Coils consist of aluminum fins securely bonded to V2-in. OD seamless copper tubes. Each fin’s aluminum collar ensures accurate control of the fin spacing, while completely covering the tubes to lengthen coil life. All coils also feature manual air vents, with automatic air vent available as an option. Copyright 2005 Carrier Corporation Form 42B-1PD Fan wheels are designed to provide low operating costs The forward-curved, centrifug

wg Rpm 5 0.6 0.7 0.8 0.9 1.0 1.1 Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 0.09 937 0.11 1009 0.13 1077 0.14 1140 0.16 1200 0.18 1257 0.20 0.33 947 0.13 1019 0.16 1086 0.18 1150 0.20 1210 0.23 1267 0.25 0.14 968 0.16 1031 0.18 1093 0.21 1154 0.24 1214 0.26 1271 0.29 0.18 1020 0.20 1067 0.22 1118 0.25 1171 0.28 1225 0.31 1278 0.34 0.25 1100 0.27 1135 0.29 1174 0.31 1215 0.33 1259 0.36 1305 0.39 0.11 880 0.12 942 0.14 1000 0.16 1055 0.18 1108 0.20 1159 0.22 0.13 903 0.15

Remove the outer panel and remove the no. 10 screw on the door. Swing open door, remove screws on barrier panel and remove barrier panel. On 38AB054,064 and 084 units, remove two screws holding hinged sheet metal barrier and swing open barrier. Condenser fans must rotate clockwise when viewed from above. If necessary, correct direction of fan rotation by interchanging any two power input wires at disconnect switch. Affix crankcase heater decal to unit disconnect switch. Control Circuit Wiring

Stop unit and check compressor oil level. Add oil only if necessary to bring oil into view in sight glass. If oil is added, run unit for additional 10 minutes. Stop unit and check oil level. If level is again low, add oil only after determining that piping system is designed for proper oil return and that the system is not leaking oil. Check the operation of all safety controls. Replace all service panels. Be sure that control panel door is closed tightly. Table 8 — Charging Data (R-22) UNIT R