Carrier 07E Service Instructions
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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 802 Catalog No. 530-607 Printed in U.S.A. Form 06/07E-2SI Pg 1 7-02 Replaces: 06/07E-1SIBook 2 2 4 4
Tab 1b 2a 2b 3a
Installation, Start-Up and
Service Instructions
Hermetic, Water-Cooled
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Receive and Inspect Unit. . . . . . . . . . . . . . . . . . . . . . . . . 1
Place Unit in Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Check Compressor Mounting . . . . . . . . . . . . . . . . . . . . 1
Piping Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7,8
Evacuate, Dehydrate, and Leak Test. . . . . . . . . . . . . . 7
Oil Charge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Start Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Timer Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-18
Protection Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compressor Thermal Protection . . . . . . . . . . . . . . . . . 9
Capacity Control System . . . . . . . . . . . . . . . . . . . . . . . . . 9
Removing, Inspecting and Replacing
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Lubrication System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Cylinder Heads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Pressure Relief Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Suction and Discharge Valve Plate Assembly . . . 14
Terminal Plate Assembly . . . . . . . . . . . . . . . . . . . . . . . . 14
Compressor Running Gear Removal . . . . . . . . . . . . 14
Compressor Running Gear Replacement. . . . . . . . 15
Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Motor Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Motor Burnout (Clean-Up Procedure). . . . . . . . . . . . 17
Condenser Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 17
SAFETY CONSIDERATIONS
Installing, starting up, and servicing this equipment can be
hazardous due to system pressures, electrical components, and
equipment location (roofs, elevated structures, etc.). Only
trained, qualified installers and service mechanics should
install, start up, and service this equipment.
When working on the equipment, observe precautions in the
literature, tags, stickers and labels attached to the equipment,
and other safety precautions that apply. Follow all safety codes.
Wear safety glasses and work gloves. Use care when handling,
rigging, and setting bulky equipment.
INSTALLATION
Receive and Inspect Unit — Inspect shipment for
damage. File claim with the shipping company if shipment is
damaged or parts are missing.
Local water conditions can cause excessive fouling or
pitting of condenser tubes. If such conditions are anticipated, a
water treatment analysis is recommended. Refer to Carrier
System Design Manual, Part 5, for general water conditioning
information.
Place Unit in Position — Locate unit on floor in a
well-ventilated area. Install unit where it will be warmer than
conditioned area. Position it to allow sufficient space for refrig-
erant and water connections and to service compressor. Allow
space at one end of condenser for tube cleaning or replacement.
Place unit so suction and discharge valves can be easily
reached and so oil level can be checked.
Make provision in piping layout to drain and vent condenser
if system is to be shut down in winter.
Level unit and bolt firmly to foundation.
Check Compressor Mounting — Loosen compres-
sor mounting bolts and remove shipping blocks from under
compressor. Tighten all 4 bolts on compressor. Loosen each
bolt just enough until the flanged washer can be moved
sideways with finger pressure. See Fig. 1.
NOTE: Be sure that compressor floats freely on mounting
springs.
Electrical shock can cause personal injury and even death.
Be sure power to equipment is shut off before installing or
servicing this equipment. There may be more than one dis-
connect. Tag disconnect(s) to alert others not to turn power
on until work is completed.
06E,07E
Compressors and Condensing Units
SELF-LOCKING
BOLT SNUBBER FLANGED
WASHER
NEOPRENE
SNUBBER
COMPRESSOR FOOT
ISOLATION SPRING
Fig. 1 — Compressor Mounting
PC 802 Catalog No. 530-607 Printed in U.S.A. Form 06/07E-2SI Pg 1 7-02 Replaces: 06/07E-1SIBook 2 2 4 4
Tab 1b 2a 2b 3a
Installation, Start-Up and
Service Instructions
Hermetic, Water-Cooled
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Receive and Inspect Unit. . . . . . . . . . . . . . . . . . . . . . . . . 1
Place Unit in Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Check Compressor Mounting . . . . . . . . . . . . . . . . . . . . 1
Piping Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7,8
Evacuate, Dehydrate, and Leak Test. . . . . . . . . . . . . . 7
Oil Charge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Start Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Timer Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-18
Protection Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compressor Thermal Protection . . . . . . . . . . . . . . . . . 9
Capacity Control System . . . . . . . . . . . . . . . . . . . . . . . . . 9
Removing, Inspecting and Replacing
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Lubrication System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Cylinder Heads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Pressure Relief Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Suction and Discharge Valve Plate Assembly . . . 14
Terminal Plate Assembly . . . . . . . . . . . . . . . . . . . . . . . . 14
Compressor Running Gear Removal . . . . . . . . . . . . 14
Compressor Running Gear Replacement. . . . . . . . 15
Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Motor Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Motor Burnout (Clean-Up Procedure). . . . . . . . . . . . 17
Condenser Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 17
SAFETY CONSIDERATIONS
Installing, starting up, and servicing this equipment can be
hazardous due to system pressures, electrical components, and
equipment location (roofs, elevated structures, etc.). Only
trained, qualified installers and service mechanics should
install, start up, and service this equipment.
When working on the equipment, observe precautions in the
literature, tags, stickers and labels attached to the equipment,
and other safety precautions that apply. Follow all safety codes.
Wear safety glasses and work gloves. Use care when handling,
rigging, and setting bulky equipment.
INSTALLATION
Receive and Inspect Unit — Inspect shipment for
damage. File claim with the shipping company if shipment is
damaged or parts are missing.
Local water conditions can cause excessive fouling or
pitting of condenser tubes. If such conditions are anticipated, a
water treatment analysis is recommended. Refer to Carrier
System Design Manual, Part 5, for general water conditioning
information.
Place Unit in Position — Locate unit on floor in a
well-ventilated area. Install unit where it will be warmer than
conditioned area. Position it to allow sufficient space for refrig-
erant and water connections and to service compressor. Allow
space at one end of condenser for tube cleaning or replacement.
Place unit so suction and discharge valves can be easily
reached and so oil level can be checked.
Make provision in piping layout to drain and vent condenser
if system is to be shut down in winter.
Level unit and bolt firmly to foundation.
Check Compressor Mounting — Loosen compres-
sor mounting bolts and remove shipping blocks from under
compressor. Tighten all 4 bolts on compressor. Loosen each
bolt just enough until the flanged washer can be moved
sideways with finger pressure. See Fig. 1.
NOTE: Be sure that compressor floats freely on mounting
springs.
Electrical shock can cause personal injury and even death.
Be sure power to equipment is shut off before installing or
servicing this equipment. There may be more than one dis-
connect. Tag disconnect(s) to alert others not to turn power
on until work is completed.
06E,07E
Compressors and Condensing Units
SELF-LOCKING
BOLT SNUBBER FLANGED
WASHER
NEOPRENE
SNUBBER
COMPRESSOR FOOT
ISOLATION SPRING
Fig. 1 — Compressor Mounting
2
Piping Connections — Attach water supply and return
lines to connections indicated on condensing unit (Fig. 2).
Water leaving condenser should not be connected directly into
sewer lines; check local codes.
Attach refrigerant liquid and suction lines to condensing
unit (Fig. 2); suction and discharge lines to compressor unit
(Fig. 3 and 4). Discharge line muffler and check valve are
factory supplied with 06E compressor units. Install the muffler
as close to shutoff valve as possible and install the check valve
in the discharge line close to the muffler, on the downstream
side. When soldering or brazing piping to valves, disassemble
the valve or wrap it in wet cloth to prevent damage by heat.
Allow flexibility in suction line so compressor suction valve
may be moved aside for access to suction strainer.
A solenoid valve is necessary for single pumpout control
used on 06E and 07E units. Install the valve (field supplied) in
the liquid line, just before expansion valve. A filter drier of
adequate size should be installed in liquid line between con-
denser and solenoid valve.
Pressure relief valve located on top of condenser will open
to relieve excessive pressure, allowing refrigerant to escape.
Most local codes require piping from valve to outdoors.
Refer to Carrier System Design Manual for standard piping
techniques.
Electrical Connections
UNBALANCED 3-PHASE SUPPLY VOLTAGE — Never
operate a motor where a phase imbalance in supply voltage
is greater than 2%. Use the following formula to determine
the % voltage imbalance:
% Voltage Imbalance =
Example: Supply voltage is 240-3-60
AB = 243 volts
BC = 236 volts
AC = 238 volts
Determine maximum deviation from average voltage:
(AB) 243 – 239 = 4 volts
(BC) 239 – 236 = 3 volts
(AC) 239 – 238 = 1 volt
Maximum deviation is 4 volts. Determine % voltage
imbalance:
This amount of phase imbalance is satisfactory as it is below
the maximum allowable 2%.
POWER SUPPLY — Field wiring must comply with local
and national codes. See Table 1.
Install a branch circuit fused disconnect of adequate size to
handle starting current. The disconnect must be within sight
from the unit and readily accessible, in compliance with
National Electrical Code (NEC), Section 440-14.
Line power is brought into control center through indicated
opening. Connect line power supply to terminal block TB1;
connect power leads to terminals L1, L2 and L3. Connect
control circuit power supply (115 volts) to terminals 1 and 15
on terminal block TB2. Refer to Fig. 5.
Wiring connections for field-supplied equipment are shown
on wiring diagram. See Fig. 6.
ACCESSORIES — Field-installed accessories for the 06E
and 07E units are control circuit transformer and gage
panel (3 gages). Refer to accessory literature for installation
instructions.
100 x max voltage deviation from avg voltage
average voltage
Average Voltage = 243 + 236 + 238
3
= 717
3
= 239 volts
% Voltage Imbalance = 100 x 4 = 1.7%
239
IMPORTANT: If the supply voltage phase imbalance is
more than 2%, contact your local electric utility company
immediately. Allowing the unit to operate with a voltage
imbalance in excess of 2% may void the warranty.
Piping Connections — Attach water supply and return
lines to connections indicated on condensing unit (Fig. 2).
Water leaving condenser should not be connected directly into
sewer lines; check local codes.
Attach refrigerant liquid and suction lines to condensing
unit (Fig. 2); suction and discharge lines to compressor unit
(Fig. 3 and 4). Discharge line muffler and check valve are
factory supplied with 06E compressor units. Install the muffler
as close to shutoff valve as possible and install the check valve
in the discharge line close to the muffler, on the downstream
side. When soldering or brazing piping to valves, disassemble
the valve or wrap it in wet cloth to prevent damage by heat.
Allow flexibility in suction line so compressor suction valve
may be moved aside for access to suction strainer.
A solenoid valve is necessary for single pumpout control
used on 06E and 07E units. Install the valve (field supplied) in
the liquid line, just before expansion valve. A filter drier of
adequate size should be installed in liquid line between con-
denser and solenoid valve.
Pressure relief valve located on top of condenser will open
to relieve excessive pressure, allowing refrigerant to escape.
Most local codes require piping from valve to outdoors.
Refer to Carrier System Design Manual for standard piping
techniques.
Electrical Connections
UNBALANCED 3-PHASE SUPPLY VOLTAGE — Never
operate a motor where a phase imbalance in supply voltage
is greater than 2%. Use the following formula to determine
the % voltage imbalance:
% Voltage Imbalance =
Example: Supply voltage is 240-3-60
AB = 243 volts
BC = 236 volts
AC = 238 volts
Determine maximum deviation from average voltage:
(AB) 243 – 239 = 4 volts
(BC) 239 – 236 = 3 volts
(AC) 239 – 238 = 1 volt
Maximum deviation is 4 volts. Determine % voltage
imbalance:
This amount of phase imbalance is satisfactory as it is below
the maximum allowable 2%.
POWER SUPPLY — Field wiring must comply with local
and national codes. See Table 1.
Install a branch circuit fused disconnect of adequate size to
handle starting current. The disconnect must be within sight
from the unit and readily accessible, in compliance with
National Electrical Code (NEC), Section 440-14.
Line power is brought into control center through indicated
opening. Connect line power supply to terminal block TB1;
connect power leads to terminals L1, L2 and L3. Connect
control circuit power supply (115 volts) to terminals 1 and 15
on terminal block TB2. Refer to Fig. 5.
Wiring connections for field-supplied equipment are shown
on wiring diagram. See Fig. 6.
ACCESSORIES — Field-installed accessories for the 06E
and 07E units are control circuit transformer and gage
panel (3 gages). Refer to accessory literature for installation
instructions.
100 x max voltage deviation from avg voltage
average voltage
Average Voltage = 243 + 236 + 238
3
= 717
3
= 239 volts
% Voltage Imbalance = 100 x 4 = 1.7%
239
IMPORTANT: If the supply voltage phase imbalance is
more than 2%, contact your local electric utility company
immediately. Allowing the unit to operate with a voltage
imbalance in excess of 2% may void the warranty.
3
Fig. 2 — 07E Water-Cooled Condensing Units
DIMENSIONS (in.)
UNIT 07E VOLTS A B C D E F G H I
A022 208/230 66 49 3 /4 2 3/ 4 34 27 1 /2 1 21 5 9/ 16 9 5/ 16
460, 575 66 43 3 /4 2 3/ 4 34 26 1 21 5 9/ 16 9 5/ 16
B027 208/230 78 49 3 /4 2 3/ 4 34 27 1 /2 1 21 5 9/ 16 9 5/ 16
460, 575 78 43 3 /4 2 3/ 4 34 26 1 21 5 9/ 16 9 5/ 16
B033 208/230 78 49 3 /4 2 3/ 4 34 27 1 /2 1 21 5 9/ 16 9 5/ 16
460, 575 78 43 3 /4 2 3/ 4 34 26 1 21 5 9/ 16 9 5/ 16
D044 208/230 69 1 /2 49 3 /4 2 3/ 4 34 27 1 /2 1 21 4 1/ 8 8 5 /8
460, 575 69 1/ 2 49 3 /4 2 3/ 4 34 27 1 /2 1 21 4 1/ 8 8 5 /8
NOTES:
1. For standard service practices, such as trouble-
shooting and refrigerant charging, allow a minimum
2′-6″ clearance around the unit.
2. Recommended service space for condenser tube
removal is one condenser length at either end.
3. For compressor removal, allow a minimum 3′ wide
access aisle to and from the unit.
4. Local codes or jurisdiction may prevail for unit
clearances.
Fig. 2 — 07E Water-Cooled Condensing Units
DIMENSIONS (in.)
UNIT 07E VOLTS A B C D E F G H I
A022 208/230 66 49 3 /4 2 3/ 4 34 27 1 /2 1 21 5 9/ 16 9 5/ 16
460, 575 66 43 3 /4 2 3/ 4 34 26 1 21 5 9/ 16 9 5/ 16
B027 208/230 78 49 3 /4 2 3/ 4 34 27 1 /2 1 21 5 9/ 16 9 5/ 16
460, 575 78 43 3 /4 2 3/ 4 34 26 1 21 5 9/ 16 9 5/ 16
B033 208/230 78 49 3 /4 2 3/ 4 34 27 1 /2 1 21 5 9/ 16 9 5/ 16
460, 575 78 43 3 /4 2 3/ 4 34 26 1 21 5 9/ 16 9 5/ 16
D044 208/230 69 1 /2 49 3 /4 2 3/ 4 34 27 1 /2 1 21 4 1/ 8 8 5 /8
460, 575 69 1/ 2 49 3 /4 2 3/ 4 34 27 1 /2 1 21 4 1/ 8 8 5 /8
NOTES:
1. For standard service practices, such as trouble-
shooting and refrigerant charging, allow a minimum
2′-6″ clearance around the unit.
2. Recommended service space for condenser tube
removal is one condenser length at either end.
3. For compressor removal, allow a minimum 3′ wide
access aisle to and from the unit.
4. Local codes or jurisdiction may prevail for unit
clearances.
4
DIMENSIONS (in.)
06E UNIT VOLTAGE A B C D E F G
V022 208/230 48 1/4 35 36 7/8 1 1/2 27 1/2 1 191 /2
460,575 48 1/4 29 36 7/8 1 1/2 26 1 191 /2
W027 208/230 50 1/4 35 36 7/8 1 1/2 27 1/2 1 191 /2
460,575 50 1/4 29 36 7/8 1 1/2 26 1 191 /2
W033 208/230 50 1/4 35 36 7/8 1 1/2 27 1/2 1 191 /2
460,575 50 1/4 29 36 7/8 1 1/2 26 1 191 /2
W044 208/230 50 1/4 35 36 7/8 1 1/2 27 1/2 1 191 /2
460,575 50 1/4 35 36 7/8 1 1/2 27 1/2 1 191 /2
Fig. 3 — 06E Hermetic Compressor Units
Fig. 4 — 06E Compressors
NOTES:
1. For standard service practices, such as troubleshooting
and refrigerant charging, allow a minimum 2′-6″ clearance
around the unit.
2. For compressor removal, allow a minimum 3′ wide access
aisle to and from the unit.
3. Local codes or jurisdiction may prevail for unit clearances.
DIMENSIONS (in.)
06E UNIT VOLTAGE A B C D E F G
V022 208/230 48 1/4 35 36 7/8 1 1/2 27 1/2 1 191 /2
460,575 48 1/4 29 36 7/8 1 1/2 26 1 191 /2
W027 208/230 50 1/4 35 36 7/8 1 1/2 27 1/2 1 191 /2
460,575 50 1/4 29 36 7/8 1 1/2 26 1 191 /2
W033 208/230 50 1/4 35 36 7/8 1 1/2 27 1/2 1 191 /2
460,575 50 1/4 29 36 7/8 1 1/2 26 1 191 /2
W044 208/230 50 1/4 35 36 7/8 1 1/2 27 1/2 1 191 /2
460,575 50 1/4 35 36 7/8 1 1/2 27 1/2 1 191 /2
Fig. 3 — 06E Hermetic Compressor Units
Fig. 4 — 06E Compressors
NOTES:
1. For standard service practices, such as troubleshooting
and refrigerant charging, allow a minimum 2′-6″ clearance
around the unit.
2. For compressor removal, allow a minimum 3′ wide access
aisle to and from the unit.
3. Local codes or jurisdiction may prevail for unit clearances.
5
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