Krack CS/CD/CP Series CS/CD/CP Air Cooled Condensing Unit Operating and Installation Manual

CS*/CD*/CP* Series
Air Cooled Condensing Units
Operating
an d
Installation
Manual
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
TABLE OF CONTENTS
I. Receipt of Equipment………………………………2
II. Piping………………..…………………………….4
III. System Evacuation….…………………………….5
IV. Electrical………………..………………………...5
V. Charging the System..……………………………..5
VI. Operation Checkout………………….…………...6
VII. Features and Controls……….……………….…..6
VIII. Normal Maintenance……………………………8
TABLES:
Table 1A&B: Recommended Line Sizes…….………..9, 10
Table 2A,B&C: Condensing Unit Refrigerant Charge..11, 12, 13
Table 3A&B: Low Pressure Control Settings…………14
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
1
Commercial Large Condensing Unit Model Key
CP
I - 0700
H
2
Condensing Unit Family
CS - Single Compressor
CP - Parallel Compressors
CD - Dual Compressors
Compressor Manufacturer
C - Carlyle Semi-Hermetic
D - Copeland Discus
I - Ingersoll Rand Semi-Hermetic
V - Copeland Screw
Total HP
0100 = 10 HP w/std condenser
0101 = 10 HP w/oversized condenser
0700 = (2) 35 HP w/std condenser
0701 = (2) 35 HP w/oversized condenser
M
Voltage
K - 208/230/3/60
M - 460/3/60
P - 575/3/60
U - 380/3/50
Refrigerant
2 (V) - R22
4 (S)- R404A
7 (P) - R507
Temperature
H - High
M - Medium
L - Low
I. RECEIPT OF EQUIPMENT
A) DAMAGE CHECK
All equipment should be carefully checked for damage as soon as it is received. If any damage is
evident, a notation must be made on the delivery receipt before it is signed and claim should then
be filed against the freight carrier.
B) CHECK VOLTAGE
Carefully check nameplate voltage and current characteristics to be sure unit is compatible with
power supply.
C) HANCDING
Never hoist the unit from any point excepting the base lifting holes provided for this purpose.
Lift with spreader and hooks as shown in Figure 1. When moving unit by forklift, lift from
compressor end ONLY. Do not lift from condenser end.
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
2
Figure 1.
D) LEVELING AND BOLT DOWN PROCEDURE
A solid level foundation should be provided for the unit large enough to accommodate the full
length of the base rails. If the mounting location is not sturdy and perfectly level, place shims
under low points before tightening down with hold-down bolts. Improper bolting-down procedure
can seriously warp the framework, particularly with the large condenser fan units (3 fans or more).
E) UNIT LOCATION
Large air-cooled condensing units dissipate a tremendous amount of heat and require large
volumes of air. Short-circuiting of the condenser air, or restricting the free entry of air into the
coil will result in reduced capacity and highpower consumption. Take care to reduce such
negative operation effects by providing for unrestricted free airflow into and from the unit. At
most, the unit should not be positioned so as to have no more than one of its sides positioned close
to a vertical building side or wall. At that point, this should be a minimum of 3’ unit-to-wall free
air clearance distance.
F) LOSS OF GAS HOLDING CHARGE
Each Condensing unit is evacuated to remove moisture, leak tested, and then shipped with a gas
holding charge. Absence of this charge may indicate a leak has developed in transit. The system
should not be charged with refrigerant until it is verified that there is no leak or the source of the
leak is located.
G) CHECK COMPRESSOR
The compressor is bolted to the base of the condensing unit using solid mounting techniques.
Check the compressor mounting bolts. Tighten these bolts as much as possible to prevent excess
vibration. Check electrical junction connections of the compressor; tighten only those that may
have come loose during transit.
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
3
II. PIPING
1) REFRIGERATION PIPING
Use ACR grade copper tubing, or conform otherwise to local and national codes. Piping methods
must meet these codes and result in acceptable piping practice.
A) SUCTION LINE
Design and sizing of the suction line is critical to maintain:
1) Proper refrigerant velocity
2) Practical pressure drop (usually equivalent to 2 F maximum)
3) For proper oil return, all horizontal lines should be sloped downwards toward compressor at 1
inch per 10 feet.
Suction line risers must be trapped at the bottom of the rise and at every 20-foot increment for
proper oil return. The proper balance is to design suction lines for approximately 1,200 ft. per
min. velocity in risers and approximately 600 ft per min. velocity in horizontal lines. “P” traps
should be installed at the bottom of all risers in suction lines for proper oil return.
Table 1 lists common suction line sizing that can be used with-but not instead of -ASHRAEguidelines.
Suction lines should not be exposed to heat unless insulated. Insulation also prevents sweating
and subsequent damage to goods.
B) LIQUID LINE
Avoid excessive liquid line pressure drop by using Table 1 and ASHRAE guidelines to size the
liquid line. Install a liquid line solenoid valve at the evaporator.
On parallel compressor systems, if one compressor cycles off due to part load conditions, suction
lines must be sized to allow for oil return under reduced load conditions.
2) LINE FABRICATION & SOLDERING
Copper pipe should be cut with a wheel type cutter and not with a hacksaw. Using a hacksaw
produces copper filings that can cause problems if it gets into the system. Also, if the pipes to be
used are not capped and perfectly clean, they should be cleaned with a clean lint free rag before
fabrication into the system.
Soft solders should be avoided wherever possible, as in most cases they require the use of a flux.
Most of the low temperature solder flux consists of heavy wax type materials which if allowed to
enter the system cause excessive service problems in the form of wax at expansion valves which
looks like moisture but cannot be removed by the average dryer core. Where silver brazing must
be used between copper and brass or copper and steel joints, care should be taken to avoid
excessive use of flux lest it be introduced into the system to create problems at a later date. EasyFlo or silver solders that contain sufficient silver content to still retain joint strength and yet
require minimum use of flux are recommended here.
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
4
For copper-to-copper joints phos-copper solders with 4 to 15% silver content are recommended.
No flux is required, and the resultant joints are of maximum strength without brittleness.
Nitrogen should be used to exclude the oxygen within the pipes during soldering in order to
prevent the creation of large quantities of copper oxide. Copper oxide is a good abrasive and if it
gets into the compressor it can cause excessive wear and/or shorting out of electric motor
windings.
3) LEAK TESTING
When all refrigeration connections have been completed, the entire system must be tested for
leaks. With all valves in the system open, pressurize the system to no more than 175 PSIG with
refrigerant and dry nitrogen. The use of an electronic type leak detector is highly recommended.
III. SYSTEM EVACUATION
CAUTION: DO NOT use the compressor as a vacuum pump.
DO NOT start the compressor while it is in vacuum.
A two-stage vacuum pump is recommended if moisture is to be removed by evacuation. A singlestage pump will not remove moisture. An electronic vacuum gauge calibrated in microns is
recommended for recording vacuum. Connect the vacuum meter to some point on the system,
such as the purge connection on the condenser, so the actual vacuum is read rather than the
vacuum at the vacuum pump. The pump should be connected to both the low and high pressure
sides with copper tube or high vacuum hoses (1/2 inch I.D. minimum)
A vacuum of 500 microns and below is recommended to effectively remove moisture from the
system. Close the valve at the pump and watch the gauge. If the system contains moisture or a
leak is present the vacuum gauge will show a rise in pressure. When there is no visible rise in
system pressure for 12 hours after the vacuum valve is shut off, evacuation is complete.
IV. ELECTRICAL
The power supply voltage, phase and frequency must match what is shown in the condensing unit
data plate. All wiring must be carefully checked against the condensing unit wiring diagram.
V. CHARGING THE SYSTEM
Weigh the refrigerant cylinder before charging the system so an accurate record can be made of
the amount of refrigerant put in the system.
Connect the suction service gauge to the compressor suction service valve and the discharge
service gauge to the receiver outlet port. The third hose from the charging manifold should be
connected to the refrigerant cylinder.
CAUTION: NEVER charge liquid refrigerant through the suction side of the system.
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
5
When initially charging a system that is in a vacuum, liquid refrigerant can be directly added into
the receiver until the system pressure equalizes with pressure in the refrigerant cylinder.
Start the system and finish charging until the sight glass is clear.
Outdoor condensing units are furnished with a condenser flooding type of head pressure control
valve for cold weather operation. This valve should be set at 180 psig for better performance for
this unit. The correct refrigerant charge must be added at start up. Table 2 indicates the refrigerant
charge at different ambient temperature.
Determine the ambient temperature at the time of charging the system and locate this temperature
at the top of table 2. Next locate the condensing unit model number and the refrigerant type on the
left side of the table. Read from left to right until you reach the column for the days ambient
temperature. Record the condensing unit charge at this set of conditions. Next locate the column
for the winter design temperature and record the condensing unit charge. The difference between
these two values is the additional refrigerant that must be added to the system for proper winter
operation.
VI. OPERATION CHECKOUT
1) Check electrical connections, fan blade set screws and refrigerant connections. Be sure they are
tight.
2) Check the low pressure control setting. See Table 3 for proper setting.
3) With the system operating, check the supply voltage. It must be within +/- 10% of the voltage
marked on the unit nameplate.
4) Check the room thermostat setting. Be sure it functions properly.
5) Check the compressor amp draw. It must not exceed the value on the unit data plate.
6) After the room temperature is reached, the expansion valve superheat must be checked. Too
low suction superheat may cause liquid to return to the compressor. Too high suction superheat
may cause excessive discharge temperatures. For maximum system capacity the minimum
superheat must be 20 F and the maximum superheat must be 30 F to 40 F at the compressor for
medium and low temperature, respectively.
7) After several hours of operation, check the compressor oil level. The oil level should be 1/2 the
way up on the glass with the compressor off. Care must be taken to be sure the proper lubricant is
used.
8) On freezer system after the coil is frosted, manually advance the defrost timer to initiate a
defrost. Observe the defrost cycle to see if all controls are functioning properly and that the coil is
clear of all frost before the system returns to refrigeration. Reset the defrost timer to the correct
time of day.
9) After the room has reached temperature and the liquid line solenoid has closed, check the
compressor to be sure it has pumped down and shut off. If the compressor continues to run, check
the low pressure control setting as outlined in step #2.
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
6
VII. FEATURES AND CONTROLS
1) REFRIGERANT OIL
The oil level should be 1/2 the way up on the glass in the compressor with the compressor off. Oil
level should be checked frequently during startup and during the first 48 hours of operating time.
Since no dependable rule of thumb can be used, the only safe method is to carefully check the oil
level and add as little oil as needed. If oil is required to be added, an oil pump is recommended to
pump the oil directly into the compressor against suction pressure. Refrigerant oil should be
purchased in sealed containers and should not be left open to atmosphere. Exposure to air and
moisture for extended periods will result in contamination of the oil and cause harmful reactions in
the compressor. Do not transfer oil from one container to another.
2) HIGH AND LOW PRESSURE CONTROLS
CS/CD/CP’s are furnished with individual manual reset high-pressure and low-pressure controls.
These are safety controls for the system. (See Table 3).
3) OIL FAILURE SWITCH
Each compressor on the Model CS/CP/CD unit has its own electronic oil pressure control. Should
oil pump differential pressure, measured between the pump inlet and outlet, fall below 9 psig for a
period of two minutes, the control will open and stop the compressor.
A trip of the oil pressure safety control is a warning that the compressor has been running without
proper lubrication. Repeated trips of the control are a clear indication that something in the system
requires immediate attention and corrective action.
If system is plagued with oil failure safety switch tripouts, it is almost always traceable to one of
the following sources.
a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
Shortage of oil in the compressor
Oil trapping in the system
Liquid slug back to the compressor for some reason.
Compressor short cycling
Refrigerant in the oil on startup
Malfunctioning oil pump
Clogged on the oil suction screen
Excessively low suction pressure
Possibly a defective control, but not probable
Low refrigerant charge in low ambient conditions
4) CRANKCASE HEATERS
Crankcase heaters are provided to reduce the possibility of refrigerant condensing in the crankcase
oil.
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
7
NOTE: The use of a crankcase heater installed on the compressor does not always assure
that liquid refrigerant will not condense in the oil under severe weather conditions.
If the compressor is subjected to extremely low temperatures and the evaporator is in a relatively
warm location, the temperature at the compressor may still drop below evaporator temperature in
which case liquid refrigerant will condense in the oil.
5) ELECTRICAL POWER
Control voltage is 230/60/1 as standard.
All condensing units are factory tested for operation before leaving the plant and direction of
rotation of all condenser fans are checked to see that they are the same. However, on installation,
phase reversals may cause the fans to run backward. It’s obvious that this can only be corrected in
the field. On start-up, be sure to check that fan rotation is according to arrow decal on or near the
fan blade. Airflow is up (vertical). Reversing of any two wires of the power supply to the
condenser fan contactor will change the direction of the fan rotation.
6) CONDENSER FAN CYCLING
Pressure switches are included to cycle all but the first condenser fan(s) in response to head
pressure.
See Table 4 for suggested pressure settings used on all multiple condenser fan systems.
7) LOW AMBIENT FLOODING CONTROLS ARE STANDARD
Condenser Liquid Flooding utilizes a field-adjustable (100 to 225 psig) condensate holdback
valve. Head pressure control valve for this unit should be set at 180 psig.
8) PUMPDOWN & RESET SWITCH
With toggle switch down in the reset and pumpdown position, the control circuit is reset and the
liquid line solenoid valve is
de-energized. This allows the compressor to pumpdown on the low-pressure control.
With the toggle switch up in the run position, the liquid solenoid valve is energized and allows the
system to cycle on the room thermostat.
VIII. NORMAL MAINTENANCE
1) Check compressor oil sight glass for proper level and check visible piping for oil spots, which
may indicate a refrigerant leak.
2) Check liquid refrigerant sight glass for proper charge. If refrigerant must be added, use
charging procedure outline in section V.
3) Check inlet airside of condenser; surface should be free of foreign matter.
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
8
TABLE 1A
RECOMMENDED LINE SIZES FOR R-22
SUCTION LINE SIZE
SUCTION TEMPERATURE
SYSTEM
CAPACITY
BTU/H
+20° F
Equivalent Suction Line
Length
25'
50'
75'
100'
-20° F
Liquid Line
Equivalent Suction Line Receiver to Expansion Valve
Length
25'
50'
75'
100'
25'
50'
75'
100'
R-22
36,000
7/8
1 1/8
1 1/8
1 3/8
1 1/8
1 3/8
1 3/8
1 3/8
3/8
1/2
1/2
1/2
42,000
7/8
1 1/8
1 1/8
1 1/8
1 1/8
1 3/8
1 3/8
1 5/8
3/8
1/2
1/2
1/2
48,000
7/8
1 1/8
1 1/8
1 1/8
1 1/8
1 3/8
1 3/8
1 5/8
1/2
1/2
1/2
1/2
54,000
1 1/8
1 1/8
1 1/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
1/2
1/2
1/2
1/2
60,000
1 1/8
1 1/8
1 1/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
1/2
1/2
1/2
1/2
66,000
1 1/8
1 1/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
1/2
1/2
5/8
5/8
72,000
1 1/8
1 3/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
2 1/8
1/2
1/2
5/8
5/8
78,000
1 1/8
1 3/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
2 1/8
1/2
1/2
5/8
5/8
84,000
1 1/8
1 3/8
1 3/8
1 3/8
1 3/8
1 5/8
2 1/8
2 1/8
1/2
5/8
5/8
5/8
90,000
1 1/8
1 3/8
1 3/8
1 5/8
1 3/8
1 5/8
2 1/8
2 1/8
1/2
5/8
5/8
5/8
120,000
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
5/8
5/8
5/8
7/8
150,000
1 3/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
2 1/8
2 5/8
5/8
7/8
7/8
7/8
180,000
1 3/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
2 5/8
2 5/8
5/8
7/8
7/8
7/8
210,000
1 5/8
2 1/8
2 1/8
2 1/8
2 1/8
2 5/8
2 5/8
2 5/8
5/8
7/8
7/8
7/8
240,000
1 5/8
2 1/8
2 1/8
2 1/8
2 1/8
2 5/8
2 5/8
2 5/8
5/8
7/8
7/8
7/8
300,000
2 1/8
2 1/8
2 1/8
2 5/8
2 1/8
2 5/8
3 1/8
3 1/8
7/8
7/8
1 1/8
1 1/8
360,000
2 1/8
2 1/8
2 5/8
2 5/8
2 5/8
2 5/8
3 1/8
3 1/8
7/8
7/8
1 1/8
1 1/8
480,000
2 1/8
2 5/8
2 5/8
2 5/8
7/8
1 1/8
1 1/8
1 1/8
600,000
2 1/8
2 5/8
3 1/8
3 1/8
7/8
1 1/8
1 1/8
1 3/8
720,000
2 5/8
3 1/8
3 1/8
3 1/8
7/8
1 1/8
1 1/8
1 3/8
840,000
2 5/8
3 1/8
3 1/8
3 5/8
1 1/8
1 1/8
1 3/8
1 3/8
960,000
2 5/8
3 1/8
3 1/8
3 5/8
1 1/8
1 3/8
1 3/8
1 3/8
Line sizes, which are shaded, indicate the maximum suction line size that may be used
for a riser. In no case should the riser exceed the horizontal line size. Properly placed
suction traps must be used to insure proper oil return.
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
9
TABLE 1B
RECOMMENDED LINE SIZES FOR R-404A and R-507
SUCTION LINE SIZE
SYSTEM
CAPACITY
BTU/H
SUCTION TEMPERATURE
+20° F
Equivalent Suction Line
Length
25'
50'
75'
100'
-20° F
Liquid Line
Equivalent Suction Line Receiver to Expansion Valve
Length
25'
50'
75'
100'
25'
50'
75'
100'
R-404A and R-507
36,000
42,000
48,000
54,000
60,000
66,000
72,000
78,000
84,000
90,000
120,000
150,000
180,000
210,000
240,000
300,000
360,000
480,000
600,000
7/8
1 1/8
1 1/8
1 1/8
1 1/8
1 1/8
1 1/8
1 1/8
1 1/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
2 5/8
1 1/8
1 1/8
1 1/8
1 1/8
1 1/8
1 3/8
1 3/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
2 1/8
2 1/8
2 5/8
2 5/8
1 1/8
1 1/8
1 3/8
1 3/8
1 3/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
2 1/8
2 5/8
2 5/8
2 5/8
3 1/8
1 1/8
1 3/8
1 3/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
2 1/8
2 1/8
2 5/8
2 5/8
3 1/8
3 1/8
1 1/8
1 1/8
1 1/8
1 3/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
2 1/8
2 5/8
1 1/8
1 3/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
2 5/8
2 5/8
2 5/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
1 5/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
2 5/8
2 5/8
2 5/8
2 5/8
1 3/8
1 5/8
1 5/8
1 5/8
1 5/8
1 5/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
2 5/8
2 5/8
2 5/8
2 5/8
3 1/8
1/2
1/2
1/2
1/2
1/2
1/2
1/2
5/8
5/8
5/8
5/8
5/8
7/8
7/8
7/8
7/8
1 1/8
1 1/8
1 1/8
1/2
1/2
1/2
1/2
1/2
1/2
5/8
5/8
5/8
5/8
5/8
7/8
7/8
7/8
7/8
1 1/8
1 1/8
1 1/8
1 3/8
1/2
1/2
1/2
1/2
5/8
5/8
5/8
5/8
5/8
5/8
7/8
7/8
7/8
7/8
1 1/8
1 1/8
1 1/8
1 3/8
1 3/8
1/2
1/2
5/8
5/8
5/8
5/8
5/8
5/8
5/8
7/8
7/8
7/8
7/8
7/8
1 1/8
1 1/8
1 3/8
1 3/8
1 5/8
Line sizes, which are shaded, indicate the maximum suction line size that may be used
for a riser. In no case should the riser exceed the horizontal line size. Properly placed
suction traps must be used to insure proper oil return.
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
10
TABLE 2A
CS* CONDENSING UNIT REFRIGERANT CHARGE - POUNDS
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
CS*
Model
0100
0150
0200
0250
0300
0350
0400
0500
0600
0101
0151
0201
0251
0301
0351
0401
0501
0601
0220
0270
0300
0151
0221
0271
0301
0150
0200
0250
0300
0350
0400
0151
0201
0251
0301
0351
0401
0220
0270
0300
0221
0271
0301
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
L2
L2
L2
L2
L2
L2
L2
M4
M4
M4
M4
M4
M4
M4
M4
M4
M4
M4
M4
L4
L4
L4
L4
L4
L4
Refrigerant
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
Above
70 F
29.1
31.6
31.6
42.4
53.2
55.7
72.5
80.6
97.1
31.6
42.4
42.4
42.3
55.7
80.4
91.2
112.9
137.0
31.6
36.9
36.9
36.9
36.9
36.8
50.2
27.9
27.9
37.4
46.9
42.2
70.8
37.4
37.4
49.0
63.9
71.0
95.1
29.3
39.5
44.8
39.5
39.4
52.2
50 F
39.8
37.3
37.3
50.7
64.2
58.6
76.0
97.0
101.8
42.4
58.4
58.4
48.0
63.9
91.5
132.9
129.4
158.4
47.5
60.3
60.3
60.3
60.3
53.8
75.6
33.4
33.4
45.4
57.4
45.0
75.7
52.1
52.1
57.1
72.9
100.2
134.1
37.9
52.1
61.2
58.9
53.1
72.4
30 F
43.6
44.8
44.8
61.9
79.0
71.9
89.6
119.3
120.0
48.3
67.1
67.1
60.6
82.7
116.6
155.9
166.9
208.2
51.8
66.6
66.6
66.6
66.6
62.1
87.9
40.2
40.2
55.6
70.9
53.3
91.9
60.2
60.2
74.1
90.2
116.3
155.6
43.3
60.2
71.8
64.8
60.9
83.9
10 F
45.9
49.0
49.0
68.2
87.4
84.0
101.9
131.8
136.4
51.6
72.1
72.1
67.1
92.4
129.7
168.7
186.4
234.0
54.1
70.0
70.0
70.0
70.0
54.9
77.0
44.2
44.2
61.5
78.7
60.9
106.8
64.9
64.9
83.2
99.6
125.7
168.1
46.6
64.9
77.9
68.3
54.9
74.7
0F
46.8
50.6
50.6
70.5
90.4
88.5
106.6
136.4
142.6
53.0
74.1
74.1
69.5
95.9
134.5
173.8
193.5
243.3
55.2
71.5
71.5
71.5
71.5
68.4
97.3
45.7
45.7
63.6
81.6
63.8
112.5
66.8
66.8
86.5
103.1
129.4
173.1
47.9
66.8
80.4
69.8
67.1
93.0
Below
-20 F
48.4
53.1
53.1
74.2
95.3
95.4
113.7
143.7
152.2
55.5
77.8
77.8
73.4
101.7
142.2
183.5
205.0
258.4
57.1
74.1
74.1
74.1
74.1
71.4
101.6
48.1
48.1
67.1
86.1
68.2
121.0
70.3
70.3
91.8
108.7
136.4
182.4
50.3
70.3
84.9
72.4
70.0
97.1
* - Ingersoll Rand or Discus Compressors
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
11
TABLE 2B
CD* CONDENSING UNIT REFRIGERANT CHARGE – POUNDS
Model*
CD* 0100
CD* 0150
CD* 0160
CD* 0180
CD* 0200
CD* 0240
CD* 0300
CD* 0400
CD* 0500
CD* 0600
CD* 0700
CD* 0800
CD* 1000
CD* 1200
CD* 0101
CD* 0151
CD* 0161
CD* 0181
CD* 0201
CD* 0241
CD* 0301
CD* 0401
CD* 0501
CD* 0601
CD* 0701
CD* 0801
CD* 1001
CD* 1201
CD* 0440
CD* 0540
CD* 0600
CD* 0441
CD* 0541
CD* 0601
CD* 0400
CD* 0500
CD* 0600
CD* 0700
CD* 0800
CD* 0401
CD* 0501
CD* 0601
CD* 0701
CD* 0801
CD* 0440
CD* 0540
CD* 0600
CD* 0441
CD* 0541
CD* 0601
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
L2
L2
L2
L2
L2
L2
M4
M4
M4
M4
M4
M4
M4
M4
M4
M4
L4
L4
L4
L4
L4
L4
Refrigerant
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
Above
70 F
14.7
17.4
17.3
17.3
29.0
31.6
32.9
32.9
42.3
53.2
55.7
80.4
80.3
104.8
17.4
17.3
20.0
31.6
32.9
32.9
42.3
42.4
42.3
55.7
80.4
90.8
117.9
136.6
23.9
27.8
36.9
27.8
33.2
44.7
29.0
37.3
46.9
42.2
70.8
37.4
49.0
63.9
70.7
94.7
30.5
39.4
39.5
39.5
44.8
52.2
50 F
18.5
24.5
20.2
20.2
33.4
37.3
34.5
34.5
44.4
64.2
58.6
84.5
83.9
108.7
26.0
22.7
27.9
42.4
37.1
37.1
48.0
58.4
48.0
63.9
91.5
95.9
122.3
141.6
36.5
44.5
60.3
44.5
63.8
69.9
30.9
39.8
57.4
45.0
75.7
52.1
51.7
72.9
75.8
101.5
33.3
42.9
52.1
58.9
70.2
72.4
30 F
19.8
27.0
24.0
24.0
39.1
44.8
41.2
41.2
53.4
79.0
71.9
102.3
89.7
110.6
28.0
25.7
32.3
48.3
46.6
46.6
60.6
67.1
60.6
82.7
116.6
126.1
147.4
157.9
42.7
52.6
66.6
52.6
71.9
82.1
37.1
48.0
70.9
53.3
91.9
60.2
74.1
90.2
96.5
129.2
41.9
54.4
60.2
64.8
78.0
83.9
10 F
20.7
28.5
26.1
26.1
42.4
49.0
47.3
47.3
61.5
87.4
84.0
118.5
109.1
130.4
29.3
27.4
34.7
51.6
51.6
51.6
67.1
72.1
67.1
92.4
129.7
145.9
176.9
198.1
37.2
45.3
70.0
45.3
76.1
71.1
42.7
55.5
78.7
60.9
106.8
64.9
83.2
99.6
110.4
147.7
46.5
60.5
64.9
68.3
82.4
74.7
0F
21.0
29.0
26.9
26.9
43.6
50.6
49.6
49.6
64.6
90.4
88.5
124.6
117.5
144.0
29.8
28.1
35.7
53.0
53.4
53.4
69.5
74.1
69.5
95.9
134.5
152.3
1067.7
209.5
47.3
58.7
71.5
58.7
78.0
91.3
44.9
58.4
81.6
63.8
112.5
66.8
86.5
103.1
115.0
153.9
48.2
62.8
66.8
69.8
84.3
93.0
Below
-20 F
21.6
30.0
28.2
28.2
45.6
53.1
53.2
53.2
69.2
95.3
95.4
133.8
126.4
155.1
30.7
29.4
37.5
55.5
56.3
56.3
73.4
77.8
73.4
101.7
142.2
164.1
203.1
231.5
49.4
61.5
74.1
61.5
81.2
95.5
48.1
62.7
86.1
68.2
121.0
70.3
91.8
108.7
123.4
165.0
51.0
66.4
70.3
72.4
87.6
97.1
All units have two refrigerant circuits. Refrigerant charge shown is per circuit.
* - Ingersoll Rand or Discus Compressors
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
12
TABLE 2C
CP* CONDENSING UNIT REFRIGERANT CHARGE - POUNDS
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
CP*
Model
0500
0600
0700
0800
1000
1200
0501
0601
0701
0801
1001
1201
0440
0540
0600
0441
0541
0601
0500
0600
0700
0800
0501
0601
0701
0801
0440
0540
0600
0441
0541
0601
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
H2
L2
L2
L2
L2
L2
L2
M4
M4
M4
M4
M4
M4
M4
M4
L4
L4
L4
L4
L4
L4
Refrigerant
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-22
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
R-404A
Above
70 F
50 F
80.4
84.5
107.9
129.9
112.9
118.8
160.7
168.9
160.5
167.8
144.1
149.5
80.4
91.5
112.9
129.4
137.0
158.4
181.5
191.9
170.3
176.7
199.4
206.8
44.7
69.9
52.6
85.9
58.3
104.5
52.6
85.9
63.4
124.5
73.9
123.6
70.8
75.7
95.1
116.1
85.7
91.4
141.6
151.4
99.4
115.7
106.7
123.4
141.4
149.2
159.6
171.6
52.2
57.1
75.0
81.9
75.2
100.2
75.2
113.7
100.7
152.1
105.7
146.3
30 F
102.3
159.7
145.4
204.6
179.5
152.1
116.6
166.9
208.2
252.3
225.6
237.9
82.1
102.1
116.8
102.1
140.6
147.9
91.9
143.2
108.0
183.9
149.6
157.6
193.0
226.1
74.1
104.6
116.3
125.6
167.9
169.3
10 F
118.5
176.3
169.5
236.9
218.3
190.6
129.7
186.4
234.0
291.7
283.6
317.1
71.1
87.3
123.3
87.3
149.1
125.6
106.8
158.8
123.2
213.6
167.8
175.9
220.8
262.5
83.2
116.9
125.7
132.4
177.0
150.9
0F
124.6
182.4
178.6
249.1
235.0
217.3
134.5
193.5
243.3
304.7
2064.8
339.3
91.3
114.2
126.2
114.2
152.8
165.9
112.5
164.6
129.1
225.0
174.5
182.7
230.1
274.6
86.5
121.4
129.4
135.4
181.0
187.5
Below
-20 F
133.8
192.2
192.4
267.7
252.8
238.3
142.2
205.0
258.4
328.2
334.3
382.1
95.5
119.7
131.2
119.7
159.1
174.1
121.0
173.7
137.9
242.1
185.2
193.5
246.8
296.3
91.8
128.6
136.4
140.5
187.9
195.8
* - Ingersoll Rand or Discus Compressors
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
13
TABLE 3A
LOW PRESSURE CONTROL SETTINGS
Minimum +
Temperature
50 F
40 F
30 F
20 F
10 F
0F
-10 F
-20 F
Max Cut In
70 Psig
55 Psig
40 Psig
30 Psig
20 Psig
15 Psig
10 Psig
8 Psig
R-22
Cut Out
30 Psig
25 Psig
20 Psig
10 Psig
5 Psig
0 Psig
0 Psig
0 Psig
R-404A
Max Cut In
Cut Out
85 Psig
40 Psig
70 Psig
35 Psig
50 Psig
30 Psig
40 Psig
20 Psig
30 Psig
10 Psig
25 Psig
5 Psig
15 Psig
0 Psig
10 Psig
0 Psig
+ Temperature is the minimum ambient temperature at the condensing unit or the box
design temperature, whichever is lower.
Example #1: 30 F minimum ambient, -20 F freezer. Use -20 F value from Table.
Example #2: -10 F minimum ambient, +35 F cooler. Use -10 F value from Table.
TABLE 3B
HIGH PRESSURE CONTROL SETTINGS
R-22
R-404A/R-507
400 Psig
400 Psig
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
14
CS/CD/CP AIR COOLED CONDENSING UNITS (P/N E207120C R2)
15