Carrier 07KHP User manual

1
CONTENTS
Installation
CONTENTS
Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Dimensional Drawing - - - - - - - - - - - - - - - - - - - - - 2
Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
Piping Works - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
Electrical Connections & Diagrams - - - - - - - - - - - 6,9-13
Operation and Start-Up - - - - - - - - - - - - - - - - - - - - 6
Refrigerant Charging - - - - - - - - - - - - - - - - - - - - - - 7
Maintenance - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
Trouble Shooting - - - - - - - - - - - - - - - - - - - - - - - - - 13
INSTALLATION
UNPACKING – Move unit to final location. Remove plastics wrap
from unit being careful not to damage or cause scratch to the unit.
Check the shipment against shipping list and remove unit protective
covering. If the unit has been damaged, file claim with transportation
company and immediately notify Concepcion-Carrier or its authorized
Dealer.
CEILING MOUNTED INSTALLATION
•Select a suitable location for the unit. For example, use
Kitchen or Bathroom ceiling spaces. (See Fig. 6)
•Make sure that there is enough ceiling clearance between unit
and slab. Check unit’s dimensional drawing. Clearance should
also be allowed for ceiling acoustic treatment and piping.
•To design steel frame for unit’s base, do not place unit directly
on the ceiling. Use a strong hanging suspension when
installing the steel frame to slab.
•Ensure there is sufficient clearance between hanging rods
and cabinet access panels, so that service work can be
carried easily. See the back page drawing for details.
•Place the unit onto the steel frame and make sure that the
unit is leveled. Use vibration isolators between unit and steel
frame. Do not use rubber blocks as isolators.
•Vibration isolators are also required for water pipe and
refrigerant tube connections. Care should be taken with
refrigerant piping to avoid any transmission of noise and
vibration to the ceiling or walls. Provide enough pipe flexibility
before fixing unit to the structure.
•Provide access panel in ceiling. Make sure the panel is
located near the unit for easy maintenance and servicing.
•After the unit is installed and pipe work are completed, be
sure to insulate the unit’s surroundings with acoustic
treatment. An acoustic type insulation can be used for
additional sound reduction.
CAUTION – Consult local building and National Electrical codes for
special installation requirements. Check that electrical data on unit’s
nameplate correspond to job site electrical supply. Check that field
power supply is sized for the units and additional accessories like water
pumps, cooling towers and indoor units.
FLOOR MOUNTED INSTALLATION
•Select a suitable location for the unit. For example, use
kitchen or balcony spaces. (See Fig. 7)
•Make sure that enough space clearance for unit. Check unit’s
dimensional drawing. Clearance should be also allowed for
acoustic treatment and piping.
•To design a compartment complete with access panel or door
for maintenance and servicing the unit.
•Use vibration isolators between the unit and floor. Do not
place the unit directly onto the floor.
•After the unit is installed and pipe works are completed, be
sure to insulate the unit’s internal compartment with acoustic
treatment.
Concepcion
Carrier
Air conditioning
Company
07KHP WATER
–
COOLED
SPLIT CONDENSING UNIT
INSTALLATION MANUAL, START-UP &
SERVICE INSTRUCTION
S
PRIOR TO INSTALLATION OF THE 07KHP
UNITS, REVIEW THE FOLLOWING IMPORTANT
POINTS However, for applications such as hotel rooms, care needs to
be taken to prevent break out noise from the immediate
surroundings into the room below.

2
TABLE 1 SPECIFICATIONS
mm 07KHP
012 07KHP 018 07KHP 024 07KHP 040 07KHP 060 07KHP 090
H 508.0 623.0
H1 355.0 549.0
H2 254.0
H3 179.0
H4 105.0
L 569.0
W 680.0
W1 329.0
W2 179.0
W3 130.0
W4 420.0
07KHP
MODEL 013 018 024 040 060 090
RATED CAPACITY (TONS) 1.0 1.5 2.0 3.0 5.0 7.5
CDU POWER INPUT (kW) 1.08 1.75 2.22 3.15 5.15 6.45
NET WEIGHT (kg) 52 54 63 70 78 93
Type R-22
REFRIGERANT Charging method By Superheat Method
Type Rotary Scroll
Compr. Model RH189NRAT RH277NHDT PH39NPBT NH52NAHT ZR61KC-TF5 ZR81KC-TF5
RLA (A) 4.8 7.8 12.6 16.8 20.7 25.0
LRA (A) 35 47 66 91 139 179
COMPRESSORS
Refill Oil Charged (lit. / oz) 0.52 / 17.6 0.52 / 17.6 0.90 / 30 1.30 / 44 1.83 / 62 1.66 / 56
Quantity 1
PLATE HEAT EXCHANGER
(STAINLESS STEEL)
Water Inlet / Outlet ,mm (in.) 25.4 (1”) FPT
Suction,mm (in.) Flare Type 12.7 (1/2) 12.7 (1/2) 15.8 (5/8) 15.8 (5/8) 19.05 (3/4) S-28.6
(1-1/8)
REFRIGERANT CONNECTIONS Liquid, mm (in.) Flare Type 6.35 (¼) 6.35 (¼) 9.52 (3/8) 9.52 (3/8) 9.52 (3/8) S-15.8 (5/8)
High Press (PSIG) 426 ± 7 / 320 ± 20
CONTROL PRESSURESTAT SETTINGS
(Open / Close pressure settings) Low Press (PSIG) n.a. 27 ± 4 / 67 ± 7
POWER SOURCE (V-Ph-Hz) NOMINAL (V) 208/230 - 1 - 60 230 - 3 - 60
PERMISSIBLE MIN-MAX VOLTAGE (V) 197 - 253
REFRIGERANT CONTROL DEVICE IN UNIT Capillary Tube Capillary*/Accurator**
RLA : Rated Load Amps LRA : Locked Rotor Amps
Data rated at 29.5° Water Out, 27°C/19°C Indoor Condition
* - Capillary tube located at FCU on model ASBFM0360-060 (Floor Standing)
** - Accurator is located at FCU on model 42AR0036-060 (Ceiling Type), 42GKX036-060(Cassette
type), 42LX036-060(Ceiling-Ducted). 7.5TR system normally uses TXV metering device.
Note: Refill oil charge is for serviceuse after compressor has been drained. This value is different
and less than Factory oil charged. Use only corresponding compressor maker approved specs.
(S) under refrigerant connections section means Sweat Type connection.
FIG. 2 DIMENSIONAL DRAWING
FRONT VIEW
TOP VIEW

3
PIPING WORK
REFRIGERANT PIPING
•Use correct size and good condition field supply tubing of
refrigerant grade.
•Run refrigerant tubes as straight as possible. Avoid
unnecessary turns and bends.
•Suspend refrigerant tubes so that they do not transmit
vibration to structure.
•Also when passing refrigerant tubes through wall, seal
opening so vibration is not transmitted to structure.
•Leave some slack in refrigerant tubes between structure and
unit to absorb vibration.
•NOTE: The longer the interconnecting piping, the lower the
cooling capacity of the unit. See table 2.
Table 2 Reduction in capacity vs increase in pipe length
EQUIVALENGHT PIPING LENGTH (ONE WAY)
MODEL
07KHP 5m 10m 15m 20m 25m
012 0 1.7% 2.7% 3.7% 4.8%
018 0 1.6% 2.8% 3.8% 4.9%
024 0 1.7% 3.0% 4.0% 5.4%
040 0 1.8% 3.0% 4.2% 5.6%
060 0 2.1% 3.8% 4.7% 5.9%
090 0 2.5% 4.3% 5.2% 6.3%
The permission piping for recommended combinations as per Table 3
and fig. 3.
Table 3 Vertical and horizontal separation between fan coil and
condensing unit.
MAX. LIFT, H m (ft)
MODEL
07KHP MAX. DISTANCE, L m (ft) CDU ABOVE
FCU CDU BELOW FCU
012 15 (50) 7.5 (25) 5.0 (16)
018 15 (50) 10 (33) 7.5 (25)
024 15 (50) 10 (33) 7.5 (25)
040 18 (60) 10 (33) 7.5 (25)
060 18 (60) 10 (33) 7.5 (25)
090 18 (60) 15 (50) 10 (33)
SIGHT GLASS AND FILTER DRIER
Sight glass and filter drier are factory supplied and field installed
applicable for model 07KHP036,048, 060 and 090 only. Warranty will be
voided if these models were not fitted with external filter drier in the field
installation.
TUBING CONNECTIONS AND LEAK TEST
•Both suction and liquid are equipped with flare type
connections. (except for Model 090 uses sweat connection).
•Assemble flare joint by aligning tubing with machine surface
of fitting. Start run onto threads by turning backwards first
then forwards.
•All lines should be assembled with type “L” or quarter hard
drawn refrigeration grade copper tubing and not with copper
water pipe.
Use the following brazing alloys:
Copper to Copper -------------- 5% Silver Alloy (no flux)
Copper to Steel or Brass ---- 35% Silver Alloy (no flux)
•Remove cap and Schrader core from service port to protect
seals from heat damage. Wrap service valve with wet rag
before applying heat. Flow dry nitrogen into a service port and
through the tubing while brazing to prevent pipe oxidation.
•Pressurize line set and coil through service fittings with dry
nitrogen to 150 psig maximum (or refer to Carrier Standard
Service Techniques Manual, chapter 1, section 1-6) If a leak
is found, recover pressure and repair all leaks.
WARNING:
DO NOT USE OXYGEN TO PURGE LINES OR PRESSURE SYSTEM
FOR LEAK TEST. OXYGEN REACTS VIOLENTLY WITH OIL, WHICH
CAN CAUSE AN EXPLOSION RESULTING IN SEVERE PERSONAL
INJURY OR DEATH.
PIPING INSULATION
Insulate both suction and liquid lines as per Fig. 4
FIG. 4 PIPING INSULATION

4
EVACUATION AND DEHYDRATION
Evacuation is the most important part of the entire service procedure.
The life and efficiency of the equipment is dependent upon the
evacuation and dehydration thoroughness exercised by the
serviceman.
Air in the system causes high condensing temperature and pressure,
resulting in increased power consumption and at the same time it
reduces system efficiency. Moisture chemically reacts with the
refrigerant and oil thus forming corrosive acids which attacks motor
windings and metal parts, causing early breakdown.
After the system has been leak checked and proven leak free, connect
the vacuum pump and evacuate system to 29” Hg vacuum. It is
advisable to connect both vacuum pump hose to the high-side and low-
side of the system to have a better and faster evacuation.
FINAL LEAK TEST
After the unit has been properly evacuated and charged, use a halogen
leak detector to check system for leaks. In the absence of this device
water-soap solution is acceptable. All piping within the condensing unit,
evaporator, and interconnecting tubing should be checked for leaks. If a
leak is detected, the refrigerant should be recovered before repairing the
leak. This is in compliance with the Clean Air Act.
WATER PIPING
•Water inlet and outlet are equipped with 25.4mm or 1 “ (FPT)
female pipe thread.
•Make sure that internal water piping is clean.
•Use correct size wrenches and proper sealing for water inlet
and outlet connections.
•Do not over tighten the connections.
•Suspend or use vibration isolators on water pipes, for pipes
not to transmit vibration.
•Field install air bleed valve and dirt leg pipes (for backwashing
purposes) in water piping system.
•Field install water supply and return line connection and check
for water pressure drop and flow rates.
•Water piping accessories, water strainer (screen assemblies
of 20 to 40 mesh) and water flow switch to be field supplied
and installed.
•Water system needs to be chemically treated in order to
maintain water cleanliness and minimize scale build-up.
•After all the water piping is completed, be sure to flush all pipe
work prior to start-up.
Condenser water inlet need to be controlled at 29.5°C(85°F ).
It is advisable to always maintain the water inlet temperature in
this region. This can be accomplished by using a thermostat to
control the cooling tower fan and water temperature in the
basin of the tower.
FIG. 5 TYPICAL PIPING & WIRING WORKS

5
FIG. 6 CEILING MOUNTED INSTALLATION
FIG. 7 FLOOR MOUNTED INSTALLATION

6
ELECTRICAL CONNECTIONS
POWER WIRING
•Unit is factory wired for voltage shown on nameplate.
•Provide adequate fused disconnect switch within sight of unit,
readily accessible but out of reach of children.
•Provision for locking switch open (off) is advisable to prevent
power from being turned on while unit is installed or serviced.
•Disconnect switch, fuses and field wiring must comply with
local codes. Size the wire as per electrical specification shown
in CCAC Service Installer Blue Book.
•Use terminal marked ‘L’ and ‘N’ for 230V-1Ph-60Hz (or 230V-
3Ph-60Hz for 3phase) power supply. See respective wiring
diagram shown on the preceding pages.
CONTROL CIRCUIT WIRING
•For FCU model 42LX036-060, Wall mounted Thermostat
complete with 3 speed switch and CDU factory wired
minimum 3/5 minutes time delay is standard. Do not reset the
delay time to lower setting.
•All 07KHP models are equipped with High Pressure switch to
protect Compressor from overload condition. This is an auto –
reset type, no necessary changes or alteration is required in
the field.
•Use terminal block marked ‘S1’ for Compressor signal control
.
All final electrical connections must be made with a length of flexible
conduit to minimize vibration and sound transmission to the building.
Field wiring must comply with local and national fire, safety and
electrical codes.
SUPPLY VOLTAGE
Operating voltage to unit must be within voltage range indicated in
Table 1. On 3-phase units voltage imbalanced must be within 2%. Use
the following formula to determine the percent voltage imbalance. In
some areas where single phasing is more likely to occur, the electrical
contractor/Installer is encourage to install a voltage phase protector to
protect the unit from single phasing.
This amount of phase imbalance is satisfactory as it is below
the maximum allowable 2%.
Operation on improper line voltage or excessive phase
imbalance constitutes abuse and may cause damage to
electrical components.
OPERATION AND START-UP
PRELIMINARY CHECKS
Before operating the unit be sure the following are in order.
1. All wiring connections are correct and tight.
2. All barriers, covers and panels are in place.
3. Electrical power supply conform to unit’s requirement.
4. Water piping system are flushed and clean.
5. Water system is chemically treated.
6. Water inlet temperature is maintained around 29.5°C (85°F).
7. All joints are leak tested and leak free.
8. All valves are opened.
TO START UNIT
1. Field disconnect switch is closed.
2. Set room temperature below ambient setting.
3. Compressor will start once time delay has elapsed (3 or 5 minutes
is standard depending on model)
4. Operate unit for 30 minutes, then check system refrigerant charge.
Consult the unit wiring diagram located on the inside of the
access panel to ensure proper electrical hookup. Route power
supply and signal wires through opening in unit’s side panel to
their respective terminals. Check all electrical connections,
including factory wiring within the unit and make sure all
connections are tight.
WARNING
TO AVOID POSSIBLE INJURY OR DEATH DUE TO
ELECTRICAL SHOCK, OPEN THE POWER SUPPLY
DISCONNECT SWITCH (SWITCH-OFF) AND SECURE
IT IN AN OPEN POSITION DURING INSTALLATION.
USE LOCK-OUT AND TAG-OUT SECURITY LOCKS!
CAUTION
THE CONTROL VOLTAGE FROM THE FAN COIL UNIT
MUST BE OF 230V. DO NOT CONNECT THE POWER
SUPPLY TO THE SIGNAL
%Voltage Imbalance
max voltage deviation from average voltage
= 100 x
average voltage
Example: Supply voltage is 460 - 3 - 60.
AB = 452 v
BC = 464 v
AC = 455 v
452 + 464 + 455
Average Voltage =
3
1371
=
3
= 457
Determine maximum deviation from average voltage:
(AB) 457 - 452 = 5 v
(BC) 464 - 457 = 7 v
(CA) 457 - 455 = 2 v
Maximum deviation is 7 v.
Determine percent voltage imbalance:
7
% Voltage Imbalance = 100 x
457
= 1.53%
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7
REFRIGERANT CHARGING
The 07KHP units are packed with refrigerant holding charge only.
Proper refrigerant charge is determine using Superheat method.
IMPORTANT
For accurate system performance, charge by superheat method as
shown in table 6 and 7.
To check and adjust charge, follow the following procedures:
1. Operate unit for a minimum of 30 minutes before checking
charge.
2. Measure suction pressure by attaching a gauge to suction
line service port.
3. Measure suction line temperature by attaching a service
thermometer to unit suction line near suction valve. Insulate
thermometer for accurate readings.
4. Measure entering water temperature with a second
thermometer.
5. Measure indoor coil air inlet wet-bulb temperature with a sling
psychrometer.
6. Refer to table 4. Find entering water temperature and wet-
bulb temperature entering indoor coil. At this intersection,
note the superheat.
7. Refer to table 5. Find superheat and temperature and suction
pressure, note suction line temperature.
8. If unit has higher suction line temperature than charted
temperature add refrigerant until charted temperature is
reached.
9. If unit has lower suction line temperature than charted
temperature, bleed refrigerant until charted temperature is
reached.
10. If entering water temperature or pressure at suction line
changes, charge to new suction line temperature indicated on
chart.
11. This procedure is valid independent of indoor air quantity.
MAINTENANCE
Remove unit’s access panels for internal servicing and maintenance.
LUBRICANT
Compressor contains factory oil charge. Replace oil when lost. See
table 3 for oil recharge and refer to Carrier Manual Chapter 1, page 1-21
for oil recharging procedure.
CLEANING HEAT EXCHANGER
Use a tank with 5% phosphoric acid. Pump the cleaning liquid through
the plate heat exchanger at 1.5 times normal flow rate for optimum
cleaning, preferably in back flush mode. Then, rinse with large amount
of fresh water to get rid of all the acid before starting up the system
again. Clean at regular interval.
TABLE 4 AIR AND WATER LIMITS
LIMITS STANDARD TEMPERATURE
AIR (C)
Min. Ambient Air 21
Rated Ambient Air 27
Max. Ambient Air 43
Min. Entering Air at Evap 21
Rated Entering Air, DB/WB 27/19
Max Entering Air, DB/WB 32/23
WATER (C)
Min. Entering Water 15
Normal Entering Water 29.5
Max Entering Water * 35
TABLE 5 WATER FLOW LIMITATIONS
UNIT MODEL NO. - 07KHP MAX / MIN L/S (GPM)
013 0.25 / 0.1
(4 / 1.5)
018 0.38 / 0.14
(6 / 2.3)
024 0.5 / 0.19
(8 / 3)
040 0.76 / 0.28
(12 / 4.5)
060 1.26 / 0.47
(20 / 7.5)
090 1.89 / 0.72
(30 / 11.5)
CAUTION
TO PREVENT PERSONAL INJURY, WEAR SAFETY GLASSES
A
ND GLOVES WHEN HANDLING REFRIGERANT. DO NOT
OVERCHARGED SYSTEM. THIS CAN CAUSE COMPRESSOR
FLOODING.
CAUTION
BEFORE PERFORMING RECOMMENDED MAINTENANCE, BE
SURE UNIT MAIN POWER SWITCH IS TURNED OFF. FAILURE
TO DO SO MAY RESULT IN ELECTRIC SHOCK OR INJURY.
* At maximum water flow conditions only as shown on Table 5
below
NOTE: Water flow must be sufficient to obtain a maximum 10F
temperature rise across the water-to-refrigerant heat exchanger when
operating in the cooling mode. Water flow rates greater than 4.0 GPM
per nominal ton or water velocities of 10 ft/sec or more may cause
erosion damage to the water-to-refrigerant heat exchanger.

9
Superheat Charging Table (English)
(Superheat Entering Suction Service Valve)
INDOOR COIL ENTERING AIR (°F) WET-BULB
ENT.
WATER
TEMP(°F) 50 52 54 56 58 60 62 64 66 68 70 72 74 76
55 9 12 14 17 20 23 26 29 32 35 37 40 42 45
60 7 10 12 15 18 21 24 27 30 33 35 38 40 43
65 - 6 10 13 16 19 21 24 27 30 33 36 38 41
70 - - 7 10 13 16 19 21 24 27 30 33 36 39
75 - - - 6 9 12 15 18 21 24 28 31 34 37
80 - - - - 5 8 12 15 18 21 25 28 31 35
85 - - - - - - 8 11 15 19 22 26 30 33
90 - - - - - - 5 9 13 16 20 24 27 31
95 - - - - - - - 6 10 14 18 22 25 29
100 - - - - - - - - 8 12 15 20 23 27
105 - - - - - - - - 5 9 13 17 22 26
110 - - - - - - - - - 6 11 15 20 25
115 - - - - - - - - - - 8 14 18 23
Symbol dash (-) means: Do not attempt to charge system under these conditions
or refrigerant slugging may occur.
Required Suction Tube Temperature (English)
(Entering Suction Service Valve)
SUCTION PRESSURE AT SERVICE PORT (psig)
SUPERHEAT
TEMP (°F) 61.5 64.2 67.1 70.0 73.0 76.0 79.2 82.4 85.7
0 35 37 39 41 43 45 47 49 51
2 37 39 41 43 45 47 49 51 53
4 39 41 43 45 47 49 51 53 55
6 41 43 45 47 49 51 53 55 57
8 43 45 47 49 51 53 55 57 59
10 45 47 49 51 53 55 57 59 61
12 47 49 51 53 55 57 59 61 63
14 49 51 53 55 57 59 61 63 65
16 51 53 55 57 59 61 63 65 67
18 53 55 57 59 61 63 65 67 69
20 55 57 59 61 63 65 67 69 71
22 57 59 61 63 65 67 69 71 73
24 59 61 63 65 67 69 71 73 75
26 61 63 65 67 69 71 73 75 77
28 63 65 67 69 71 73 75 77 79
30 65 67 69 71 73 75 77 79 81
32 67 69 71 73 75 77 79 81 83
34 69 71 73 75 77 79 81 83 85
36 71 73 75 77 79 81 83 85 87
38 73 75 77 79 81 83 85 87 89
40 75 77 79 81 83 85 87 89 91
Superheat Charging Table (Metric)
(Superheat Entering Suction Service Valve)
INDOOR COIL ENTERING AIR (°C) WET-BULB
ENT.
WATER
TEMP(°C) 10 11.1 12.2 13.3 14.4 15.6 16.7 17.8 18.9 20 21.1 22.2 23.3 24.4
12 5 6.7 7.8 9.4 11.1 12.8 14.4 16.1 17.8 19.4 20.6 22.2 23.3 25
15.5 3.9 5.6 6.7 8.3 10 11.7 13.3 15 16.7 18.3 19.4 21.1 22.2 23.9
18.3 - 3.3 5.8 7.2 8.9 10.6 11.7 13.3 15 16.7 18.3 20 21.1 22.8
21.1 - - 7 5.6 7.2 8.9 10.6 11.7 13.3 15 16.7 18.3 20 21.7
23.9 - - - 3.3 5 6.7 8.3 10 11.7 13.3 15.6 17.2 18.9 20.6
26.7 - - - - 2.8 4.4 6.7 8.3 10 11.7 13.9 15.6 17.2 19.4
29.4 - - - - - - 4.4 6.1 8.3 10.6 12.2 14.4 16.7 18.3
32.2 - - - - - - 2.8 5 7.2 8.9 11.1 13.3 15 17.2
36 - - - - - - - 4.4 5.6 7.8 10 12.2 13.9 16.1
37.8 - - - - - - - - 3.3 6.7 8.3 11.1 12.8 15
40.6 - - - - - - - - 2.8 5 7.2 9.4 12.2 14.4
43.3 - - - - - - - - - 3.3 6.1 8.3 11.1 13.9
46.1 - - - - - - - - - - 4.4 7.8 10 12.8
Symbol dash (-) means: Do not attempt to charge system under these conditions
or refrigerant slugging may occur.
Required Suction Tube Temperature (Metric)
(Entering Suction Service Valve)
SUCTION PRESSURE AT SERVICE PORT (KPaG)
SUPERHEAT
TEMP (°K) 424 443 463 483 503 524 546 568 591
0 1.7 2.8 3.9 5 6.1 7.2 8.3 9.4 10.6
1.1 2.8 3.9 5 6.1 7.2 8.3 9.4 10.6 11.7
2.2 3.9 5 6.1 7.2 8.3 9.4 10.6 11.7 12.8
3.3 5 6.1 7.2 8.3 9.4 10.6 11.7 12.8 13.9
4.4 6.1 7.2 8.3 9.4 10.6 11.7 12.8 13.9 15
5.6 7.2 8.3 9.4 10.6 11.7 12.8 13.9 15 16.1
6.7 8.3 9.4 10.6 11.7 12.8 13.9 15 16.1 17.2
7.8 9.4 10.6 11.7 12.8 13.9 15 16.1 17.2 18.3
8.9 10.6 11.7 12.8 13.9 15 16.1 17.2 18.3 19.4
10 11.7 12.8 13.9 15 16.1 17.2 18.3 19.4 20.6
11.1 12.8 13.9 15 16.1 17.2 18.3 19.4 20.6 21.7
12.2 13.9 15 16.1 17.2 18.3 19.4 20.6 21.7 22.8
13.3 15 16.1 17.2 18.3 19.4 20.6 21.7 22.8 23.9
14.4 16.1 17.2 18.3 19.4 20.6 21.7 22.8 23.9 25
15.6 17.2 18.3 19.4 20.6 21.7 22.8 23.9 25 26.1
16.7 18.3 19.4 20.6 21.7 22.8 23.9 25 26.1 27.2
17.8 19.4 20.6 21.7 22.8 23.9 25 26.1 27.2 28.3
18.9 20.6 21.7 22.8 23.9 25 26.1 27.2 28.3 29.4
20 21.7 22.8 23.9 25 26.1 27.2 28.3 29.4 30.6
21.2 22.8 23.9 25 26.1 27.2 28.3 29.4 30.6 31.7
22.2 23.9 25 26.1 27.2 28.3 29.4 30.6 31.7 32.8
TABLE 6
TABLE 7

10
FIG. 8 WIRING DIAGRAM 07KHP012
FIG. 9 WIRING DIAGRAM 07KHP018 & 024

11
FIG. 10 WIRING DIAGRAM 07KHP040 & 050
FIG. 11 WIRING DIAGRAM 07KHP060

12
FIG. 12 WIRING DIAGRAM 07KHP090
FIG. 13 RECOMMENDED SERVICE CLEARANCES

13
NO COOLING OR
IN-SUFFICIENT
COOLING
COMPRESSOR
RUNS BUT
INSUFFICIENT
COOLING
INCORRECT
METERING DEVICE
DIRTY AIR
FILTERS
LOW SUCTION
PRESSURE
AIR TRAPPED IN
WATER CIRCUIT
BLOCKED WATER
CIRCUITS HEAT
EXCHANGER
NO WATER FLOW
THROUGH HEAT
EXCHANGER
COMPRESSOR RUNS
BUT CYCLES ON
INTERNAL
OVERLOAD
COMPRESSOR
WILL NOT RUN
CONTACTOR
OPEN CONTACTOR CLOSED
FAULTY POWER
SUPPLY
OPEN CONTROL
CIRCUIT
DEFECTIVE
TIME DELAY
LOOSE
ELECTRICAL
CONNECTION
INTERNAL
OVERLOAD OPEN
CONTACTOR OR
COIL DEFECTIVE
OPEN
HP PRESSURE
SWITCH
FAULTY START
GEAR
(
1PH
)
LOOSE LEADS
A
T COMPRESSOR
COMPRESSOR
STUCK
COMPRESSOR
POWER
SUPPLY OPEN
COMPRESSOR
INTERNAL
PROTECTION
OPEN
OVERCHARGED OR
NONCONDENSABLES
IN SYSTEM
OPEN, SHORTED
OR GROUNDED
COMPRESSOR
MOTOR WINDING
HIGH
SUPERHEAT
COMPRESSOR
BEARINGS
DEFECTIVE FAN
CAPACITOR
LINE VOLTAGE TOO
HIGH OR LOW
LOW REFRIGERANT
CHARGED
RESTRICTED
DISCHARGE LINE
INTERNAL
PRESSURE RELIEF
OPEN
DEFECTIVE
COMPRESSOR
VALVES
CONDENSER ENT.
WATER TEMP.
TO LOW
LIQUID LINE
SLIGHTLY
RESTRICTED
SLIGHTLY
LOW ON
REFRIGERANT
HIGH SUCTION
LOW HEAD
PRESSURE
INCORRECT
METERING DEVICE
METERING DEVICE
RESTRICTED
INDOOR COIL
FROSTED
DAMPER PARTLY
CLOSED
DUCT
RESTRICTED
HIGH SUCTION
LOW SUPERHEAT
UNIT
OVERCHARGED
INDOOR COIL
STAINER
RESTRICTED
TROUBLESHOOTING CHART-COOLING CYCLE

14
Concepcion Carrier Air Conditioning Company
Km. 20 East Service Road, South Superhighway,
Alabang, Muntinlupa City
Tel. No. (63)2 850 1367
Fax No. (63)2 809 9979
Website: www.carrier.com.ph
Manufacturer reserve the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations
Form 07KHP-4IOM
Replaces: 07KHP-3IOM
Concepcion
Carrier
Air conditioning
Company