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Product Development Dept. 

                                                        

07/2005

6

Step 2 – Rig and mount the Unit 

 

RIGGING – These units are designed for 
overhead rigging only. For this purpose, the 
transverse base channels extend beyond the 
sides of the unit, with holes provided in the end 
plates to attach cables or hooks. Rig with top 
skid packaging assembly in place to prevent 
unit damage by the rigging cable. As further 
protection for the coil faces, plywood sheets 
can be placed against the sides of the unit, 
behind the cables. Run the horizontal is not 
less than 45 degrees. Raise and set the unit 
down carefully. 

If it is necessary to roll the unit into position, 
mount the unit on longitudinal rails, using a 
minimum of 3 rollers. Apply force to the rails, 
not the unit. If the unit is to be skidded into 
position, place it on a large pad and drag it by 
the pad. Don not applies any force to the unit. 

Rise from above to lift unit from the rails or pad 
when unit is in final position. 

COMPRESSOR MOUNTING –As shipped, the 
compressor is held tightly in place by self-
locking bolts

.

Before starting unit, loosen self-locking 
bolts until the snubbed washer can be
moved sideways with finger pressure. Do 
not remove shipping bolts. See Fig.3. 

Fig. 3 — Compressor Mounting 

                                                                    

INSTALL FILTER DRIER (S) AND MOISTURE INDICATOR (S) — Every unit should have a filter drier 
and liquid-moisture indicator (sight glass). In some applications, depending on space and convenience 
requirements, it may be desirable to install 2 filter dryers and sight glasses. One filter drier and sight 
glass may be installed at 

A

 locations in Fig. 4. Or, 2 filter dryers and sight glasses may be installed at 

B

locations.

Select the filter drier for maximum unit capacity and minimum pressure drop. Complete the refrigerant 
piping from indoor unit to outdoor unit before opening the liquid and suction lines at the outdoor unit. 

Fig.4 - Location of Slight Glass 

7

Be sure unit panels are securely in place prior to
rigging.

Summary of Contents for 38AF Series

Page 1: ...Installation Manual...

Page 2: ...nstalling starting up and servicing air conditioning equipment can be hazardous due to system pressures electrical components and equipment location roofs elevated structures etc Only trained qualifie...

Page 3: ......

Page 4: ...V Ph Hz 380 3 50 Operating Current Amp 44 05 54 84 59 38 85 12 108 68 120 42 Model 06E2250611 06E2265611 06E627506 06E6299681 06E2265611 06E627506 Type Semi Hermetic Reciprocating Quantity 1 1 1 1 2 2...

Page 5: ...d a o l n U y B l o r t n o C p e t S y t i c a p a C Starter Electrical Controls Type Pre Charging from Factory kg 5 9 1 x 2 6 3 1 x 2 0 5 9 2 0 5 9 1 0 6 3 1 0 7 2 1 g k g n i g r a h C n o i t a r...

Page 6: ...38AE020 040 38AF020 040 38AE050 060 38AF050 060 Dimension...

Page 7: ...rom above to lift unit from the rails or pad when unit is in final position COMPRESSOR MOUNTING As shipped the compressor is held tightly in place by self locking bolts Before starting unit loosen sel...

Page 8: ...brazing to prevent formation of copper oxide Install field supplied thermostatic expansion valve s in indoor section If 2 thermostatic expansion valves are installed for 2 step cooling install field...

Page 9: ...least within sight in the compressor sight glass Add oil if necessary see Tables l 2 Compressor hold down bolts must be snug but not tight Refer to Compressor Mounting section and tag on compressor f...

Page 10: ...se Heater The heater prevents refrigerant migration and compressor oil dilution during shutdown whenever compressor is not operating It is wired into the control circuit and cycles with the compressor...

Page 11: ...2 rows of fins 38AE020 or 3 rows of fins 38AE010 015 025 060 and restrict outdoor airflow Use a flashlight to determine if dirt or debris has collected between coil sections Clean coil as follows 1 T...

Page 12: ...e s replace with correct type and size 4 Check thermostat setting 5 Check Time Guard ll devices 6 Check for excessive compressor current draw Reset breaker replace if defective 7 Reset lockout circuit...

Page 13: ...ity control solenoid valve if used 3 Miswired capacity control liquid line solenoid if used 4 Weak broken or wrong valve body spring COMPERSSOR WILL NOT LOAD 1 Miswired capacity control liquid line so...

Page 14: ...14 38AE020 38AF020 Wiring Diagram...

Page 15: ...15 Wiring Diagram 38AE025 030 040 38AF025 030 040...

Page 16: ...16 Wiring Diagram 38AE050 060 38AF050 060...

Page 17: ...state is ignored during the first 60 seconds of operation After this time if the OPS is open 24 vac not present at T9 the compressor will be shut down Alarm LED DS2 displays the state of the OPS A do...

Page 18: ...ned y n ____________ Is the oil level in each compressor crankcase visible in the compressor sight glasses y n ____________ Check Voltage Imbalance Line to line volts ab____v ac____v bc_____v ab ac bc...

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