. . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16 Cooler and Economizer Removal. . . . . . . . . . . . . . . . . 4 Remote Cooler and Economizer Installation. . . . . 10 SAFETY CONSIDERATIONS Installing, starting up, and servicing air-conditioningequipment can be hazardous due to system pressures, electricalcomponents, and equipment loca

Without accessory economizer — Upon a request for cooling from the space thermostat, terminals Y1 and G will be energized with 24 v. As a result, the indoor-fan contactor (IFC), outdoor-fan contactor (OFC) and Compressor contactor no. 1 (C1) will be energized, which in turn will energize the indoor fan, outdoor fan and Compressor no. 1, respectively. If the space thermostat calls for a second stage of cooling by supplying 24 v to Y2, Compressor contactor no. 2 (C2) will be energized, thus energi

10 — Field Power Wiring Connections FIELD CONTROL WIRING - Install a Carrier-approved accessory thermostat assembly according to the installation instructions included with the accessory. Locate thermostat assembly on a solid wall in the conditioned space to sense average temperature. Route thermostat cable or equivalent single leads of no. 18 AWG (American Wire Gage) colored wire from subbase terminals through conduit in unit to low-voltage connections as shown on unit label wiring diagram an

Remember to reconfigure the chiller for each feature selected (see Table 13). For temperature reset, demand limit, and dual set point, desired set points must be entered through keypad and display module (see Set Point Function section on page 39). See Table 17 for overall troubleshooting information. LEGEND EEM EEM Communications Bus Power Fig. 22 4 In/4 Out Module (SIO) 66 Table 17 - Troubleshooting SYMPTOMS CAUSE REMEDY COMPRESSOR DOES Power line open Reset circuit breaker NOT RUN Control fus

See Fig. 1. for location of gas valve. Refer to Fig. 2 while proceeding with the following steps: Step 1 — Set room thermostat to the lowest temperature setting andset SYSTEM switchtoOFF position. Step 2 — Close the shutoff valve on the gas supply piping. Step 3 — Turn off the electrical supply to the unit and install lockout tag. Step 4 — Open the heat section access panel. Step 5 — Move ON/OFF switch on the internal main gas valve to the OFF position an Step 6 — Move ON/OFF switch on internal

Shell-and-Tube Condenser Cleaning — The shelland- tube condenser tubes can be cleaned either mechanically or chemically. To clean them chemically, follow the procedure described in Brazed-Plate Cooler and Condenser Heat Exchanger Cleaning section above. To clean the condenser tubes manually: 1. Order tubing brushes (Carrier part no. KC21AH105). 2. Close the valves on the condenser and relieve condenser water pressure. BE SURE TO PROVIDE DRAINAGE TO PREVENT WATER DAMAGE. 3. Remove the condenser h

1 - Typical 2 Cylinder Water-Cooled Condensing Unit (07DA102, Single-Phase Illustrated) Carrier INSTALLATION 06D,07D DISCHARGE , DISCHARGE MANIFOLD DISCHARGE MUFFLER GAGE CONN.~~----.--_ / PRESSURESTAT CONN.__„ TERMINAL BLOCK SUCTION PRESSURESTAT CONNECTION-—-S COMPRESSOR NAMEPLATE suction shut-off ^run valve capacitors SUCTION GAGE TART C0NN APACITORS PUMP END BEARING HEAD OIL PUMP COVER BULL'S EYE - m OIL DRAIN PLUG- WATER OUTLET . ................................................

For medium temperature (R-134a) applications, an 06EM compressor is standard. Factory substitutions may be made. Contact Carrier Sales Representative. †The condenser listed is for R-22, air conditioning duty and may change based on the application. Maximum condenser operating pressure: 350 psi refrigerant side, 150 psi water side. START-UP Energize crankcase heater at least 24 hours prior to start-up. Check to see that oil level is approximately 1/3 up on the compressor sight glass. Open water s

SWITCH —o- SAFETY DEVICE CONTACTS,N.C Ï_1 "m'Iaux ■* TCONTACTS,NOJ •—#—J PUMPOUT RELAY p POR CONTACTS.NO. TR TR CONTACTS,N.O. -#- a2 LIQ SOL VALVE A|o_ a a a ■o —I I HIGH PRESS SWITCH TIMER RELAY B2 ! COND AUX AUX CONTACTS,N.O. —°—s|f—Ç) COMPRESSOR CONTACTS.N.O. 1. Starting Sequence (Assuming evaporator interlocks and all operating safety controls are in closed position) Time: 0 Min 0 Sec - Timer switch plunger is up at beginning edge of cam node and contacts are in po

In this position, set point is 86 psig. Control set point is then regulated to desired pressure by turning adjustment nut counterclockwise. Each full turn decreases set point by approximately 7.2 psi. Approximately 12 turns counterclockwise lowers the control set point to 0 psig. See Table 5. Table 5 — Capacity Control UNIT 06E,07E NO. OF CONTR % Full Load Capacity 100 67 49 32 % Full Load kW CYL 100 73 57 46 Number of Active Cylinders ALL 4 CYLINDER MODELS 2 4 — 2 — ALL 6 CYLINDER MODELS 4 6 4