Model CPH HorizontalWater-Cooled

Air Conditioning UnitSupersedes: 145.14-IOM1 (708) Form 145.14-IOM1 (908)

MODEL CPH 060, 096, 120HORIZONTAL WATER-COOLED

AIR CONDITIONING UNITSINSTALLATION & OPERATION

INSTRUCTIONS

JOHNSON CONTROLS2

FORM 145.14-IOM1 (908)

This equipment is a relatively complicated apparatus. During installation, operation, maintenance or service, individuals may be exposed to certain components or conditions including, but not limited to: refrigerants, oils, materials under pressure, rotating components, and both high and low voltage. Each of these items has the potential, if misused or handled improperly, to cause bodily injury or death. It is the obligation and respon-sibility of operating/service personnel to identify and recognize these inherent hazards, protect themselves, and proceed safely in completing their tasks. Failure to comply with any of these requirements could result in serious damage to the equipment and the property in

IMPORTANT!READ BEFORE PROCEEDING!

GENERAL SAFETY GUIDELINES

which it is situated, as well as severe personal injury or death to themselves and people at the site.

This document is intended for use by owner-authorized operating/service personnel. It is expected that this individual possesses independent training that will en-able them to perform their assigned tasks properly and safely. It is essential that, prior to performing any task on this equipment, this individual shall have read and understood this document and any referenced materials. This individual shall also be familiar with and comply with all applicable governmental standards and regulations pertaining to the task in question.

SAFETY SYMBOLSThe following symbols are used in this document to alert the reader to areas of potential hazard:

All wiring must be in accordance with published specifications and must be performed ONLY by qualified service personnel. Johnson Controls will not be responsible for damages/problems resulting from improper connections to the controls or application of improper control signals. Failure to follow this will void the manufacturer’s warranty and cause serious damage to prop-erty or injury to persons.

DANGER indicates an imminently haz-ardous situation which, if not avoided, will result in death or serious injury.

CAUTION identifies a hazard which could lead to damage to the machine, damage to other equipment and/or environmental pollution. Usually an instruction will be given, together with a brief expla-nation.

WARNING indicates a potentially haz-ardous situation which, if not avoided, could result in death or serious injury.

NOTE is used to highlight additional in-formation which may be helpful to you.

FORM 145.14-IOM1 (908)

3JOHNSON CONTROLS

CHANGEABILITY OF THIS DOCUMENTIn complying with Johnson Controls policy for continu-ous product improvement, the information contained in this document is subject to change without notice. While Johnson Controls makes no commitment to up-date or provide current information automatically to the manual owner, that information, if applicable, can be obtained by contacting the nearest Johnson Controls service office.

It is the responsibility of operating/service personnel as to the applicability of these documents to the equipment in question. If there is any question in the mind of oper-ating/service personnel as to the applicability of these documents, then, prior to working on the equipment, they should verify with the owner whether the equipment has been modified and if current literature is available.

Work on this equipment should only be done by properly trained personnel who are qualified to work on this type of equipment. Failure to comply with this requirement could expose the worker, the equipment and the building and its inhabitants to the risk of injury or property damage.

The instructions are written assuming the individual who will perform this work is a fully trained HVAC & R journeyman or equivalent, certified in refrigerant handling and recovery techniques, and knowledgeable with regard to electrical lock out/tag out procedures. The individual performing this work should be aware of and comply with all national, state and local safety and environ-mental regulations while carrying out this work. Before attempting to work on any equipment, the individual should be thoroughly familiar with the equipment by reading and understanding the associated service literature applicable to the equipment. If you do not have this literature, you may obtain it by contacting a Johnson Controls Service Office.

Should there be any question concerning any aspect of the tasks outlined in this instruction, please consult a Johnson Controls Service Office prior to attempting the work. Please be aware that this information may be time sensitive and that Johnson Controls reserves the right to revise this information at any time. Be certain you are working with the latest information.

JOHNSON CONTROLS4

FORM 145.14-IOM1 (908)

TABLE OF CONTENTSTABLE OF CONTENTS

General Information 6Installation 7

Inspection of Equipment 8Site Selection 8

General Data 9Dimensional Data 10Water Piping 12

Water Pressure Drop 13Supply/Return Air Ductwork 14Electrical 14

Wiring 15Fan Performance Data 15

Motor and Drive Data 16RPM Adjustment 16

Start-Up & Operation 17Refrigerant Charges 17Safety Switch Settings 17

Typical Schematic 18Maintenance / Service 19

Filter Sizes 19

FORM 145.14-IOM1 (908)

5JOHNSON CONTROLS

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JOHNSON CONTROLS6

FORM 145.14-IOM1 (908)

GENERAL INFORMATION

Our units are designed to accommodate the ever-changing installation requirements of today’s market. All models 5 - 10 tons are shipped as factory-charged unitized packages. Low profile design allows the unit to be installed on the floor or suspended from the ceiling. CPH models feature a ‘straight-through’ airflow configu-ration. Units are completely factory wired and piped. These units are designed to allow easy passage through doors, hallways and elevators. All unit components are securely mounted inside the heavy gauge “Galvalume” steel cabinet. All units are lined with 1/2” thick - 2 lb density acoustical insulation to ensure the quietest op-eration. All models are provided with medium- efficiency 2” thick throwaway filters.

The 5 ton model has a single refrigerant circuit. The 8 and 10 ton models are dual compressor units with two in-dependent compressor/ condenser circuits. Evaporator coils are of copper tube and rippled aluminum plate fin construction. The high-efficiency tube-in-tube condens-ers feature a convoluted inner tube design for optimum performance. Standard models feature a copper inner tube surrounded by a steel outer tube, and carry a 400 psig working pressure rating. Multiple refrigerant circuit models feature internally manifolded condensers (single water in, water out connection).

High efficiency Scroll compressors are used in all mod-els, mounted on durable rubber isolators to reduce vibra-tion and noise while operating. Each refrigerant circuit is equipped with high pressure and low pressure switches. All models are equipped with an adjustable thermal ex-pansion valve (with external equalizer), one valve per circuit. Each refrigerant circuit is also equipped with a liquid line filter drier, sight glass/moisture indicator, and service access ports. An electrically re-setable lock-out relay will shut off the compressor in the event of pressure switch trip during operation. Control circuit operates on 24V, and features an oversized transformer. Optional anti-short circuit timers can be field/factory installed.

Installation time is minimized with all models. When plan-ning an installation consider power supply, thermostat, condensate drain line, duct run, and service clearances. A remote thermostat device is field supplied and installed to control the unit operation.

Service access doors are equipped with lifting handles, and are located on both sides of the unit to allow easy servicing of all components.

All units are equipped with centrifugal blowers combined with variable pitch adjustable pulleys. Forward curved double width, double inlet blowers are used for evapo-rator air movement. All models employ a draw-through air flow arrangement. Large evaporator coil face areas reduce noise levels, air pressure drops, and minimize potential condensate blow-off. All blower wheels are galvanized steel, with solid steel shafts supported in permanently lubricated ball bearings. V-belts drive all models and blower RPM can be adjusted through the motor sheave.

FORM 145.14-IOM1 (908)

7JOHNSON CONTROLS

TYPICAL INSTALLATION LAYOUT (CPH060 SHOWN) LD13464

JOHNSON CONTROLS8

FORM 145.14-IOM1 (908)

PRE-INSTALLATION INSPECTION OF EQUIPMENT

All units are factory tested to ensure safe operation and quality assembly. Units are packaged and sealed on shipping skids and shipped in first class condition. Torn and broken packaging, scratched or dented pan-els should be reported to carrier immediately. Internal inspection of all units should be performed prior to installation . Remove all access doors and check for visual defects that can occur during transport. Any prob-lems found internally should be reported to carrier and manufacturer immediately. Refrigerant circuit should be checked to ensure no leaks have occurred during ship-ment. Install gauge set to high and low pressure ports to confirm pressure has been maintained and no leaks have occurred during shipment. Repair any damage prior to installation to ensure safe operation.

Record any unit damage on the Bill of Lading and report to carrier and factory immediately. Shipping and handling damages are not warranty items.

RIGGING

PRIOR TO MOUNTING UNIT, CHECK INDIVIDUAL UNIT WEIGHTS AND VER-IFY LIFTING CAPACITY OF LIFTING EQUIPMENT EXCEEDS WEIGHT OF UNITS BY SAFE MARGINS. FAILURE TO DO SO MAY RESULT IN UNIT DAMAGE, PERSONAL INJURY OR EVEN DEATH.

DETERMINE THE ACTUAL CENTER OF GRAVITY OF THE UNIT BY PERFORM-ING A TEST LIFT. LIFTING AN UNBAL-ANCED UNIT CAN CAUSE PERSONAL INJURY OR EVEN DEATH.

INSTALLATION

LOCK ALL ELECTRICAL POWER SUP-PLY SWITCHES IN THE OFF POSITION BEFORE INSTALLING THE UNIT. FAIL-URE TO DISCONNECT POWER SUPPLY MAY RESULT IN ELECTRICAL SHOCK OR EVEN DEATH.

Location - To ensure unit operates at maximum efficien-cies, choose a dry indoor area where the temperature is controlled between 50ºF and 15ºF. Consideration of surrounding areas should be taken when choosing a location to install the unit. Common vibration and sound levels associated with commercial equipment may be objectionable to people or equipment. Install thermostats, air supplies and returns so that each unit will operate only on individual unit control.

UNIT MOUNTING

The 5 through 10 ton models are shipped as a fully assembled integral package. Units are not intended for outdoor installation.

Units may be either hung, or floor mounted. If unit is to be hung, use all mounting points indicated. The use of 1/2 in. diameter hanger rods is recommended. Ensure the attachment points of the rods to the building structure are sufficient to support the unit weight. In order to ensure efficient condensate drainage, the unit may be pitched towards the condensate drain outlet end of the unit. A minimum of 4 in. clearance is required under the unit to allow for trapping of the evaporator condensate drain.

Floor mounted units should be secured on a solid, level pad. The use of isolating vibro-pads at several points under the bottom mounting channels is recommended. Ensure that provision is made for clearance to install a trap on the condensate drain outlet.

FORM 145.14-IOM1 (908)

9JOHNSON CONTROLS

The water cooled coaxial condensers in these units have copper tubing and are NOT suitable for salt or brackish water. Do not install these units outdoors, or in any area where the surrounding temperature may drop below 32ºF.

GENERAL DATA

Model 060A 096A 120ANominal Cooling(Ton) 5 8 10Cooling PerformanceGross Cooling Capacity(Btuh) 64100 101800 126000Design CFM 2000 3200 4000

Compressor-Type ScrollNumber Used 1 2 2Evaporator Coil-Type Copper Tubes, Aluminum FinsFace Area(sq ft) 5.28 9.17 9.17Rows/FPI 3/13 3/13 3/13Condenser-Type CoaxialNumber Used/Tons Capacity 1/5 2/4 2/5Nominal Water flow rate (gpm) 15 24 30Condenser Water Connections 1" FPT 1-1/4" FPT 1-1/4" FPTEvaporator Fan-Type Centrifugal, Forward CurvedNumber Used 1 2 2Diameter x Width (in) 10x10 10x8 10x8Drive Adjustable BeltMotor HP (Standard/Oversize) 1/NA 1.5/2 2/3Filters

Number Used-Size(in) 2-20x20x2 2-20x25x21-20x20x2

2-20x25x21-20x20x2

Condensate Drain Connection 3/4FPTWeight 460 710 760NOTE: Cooling performance is rated at 80°F dry bulb 67°F wet bulb entering air temperature,CFM listed, 85°F entering 95°F leaving water temperature, and water flow rate listed.Gross capacity does not include the effect of evaporator fan motor heat.

JOHNSON CONTROLS10

FORM 145.14-IOM1 (908)

060LD13465

FORM 145.14-IOM1 (908)

11JOHNSON CONTROLS

096 & 120

LD13466

JOHNSON CONTROLS12

FORM 145.14-IOM1 (908)

WATER PIPING

All factory installed water piping terminates inside the unit. Multi-condenser units feature manifolded single water in and out connections.

Water connection fittings are threaded copper. Use caution when tightening steel pipe into copper fittings. Always use a backing wrench on the hex fittings inside the unit.

It is recommended that flexible connectors be provided on the water supply and return lines if noise and vibra-tion transmission could be a problem.

Water piping should include shutoff / balancing valves so that the unit can be serviced without shutting down and draining the entire water supply circuit. Since units are piped in parallel piping circuits, the shutoff valves may be used to equalize the pressure drop to each branch for even condenser water distribution. A bibcock or a plugged tee fitting should be installed between the shut-off valves and the unit in both the inlet and outlet pipes. These connections are to provide for acid cleaning of the condenser, if this should become necessary.

CONDENSER PRESSURE CONTROL

Water regulating valves provide control of the quantity of condenser water supplied to the unit by sensing the con-densing temperature. The factory installed Condenser Pressure Control option provides a regulating valve for each internal condenser water circuit.

The water regulating valve needs to be adjusted to maintain a leaving water temperature between 90ºF and 100ºF. If using a refrigerant discharge pressure gauge, adjust the water valve to maintain a condensing pressure of 170 to 220 PSIG. The valve is adjusted by turning the ¼ inch square shaft on top of the spring housing. Turning the adjusting screw counter clockwise will raise the opening pressure and raise the condensing pressure being maintained. Turning the adjusting screw clockwise will lower the opening point and lower the condensing pressure being maintained. If mains water is being used, make sure the valve closes soon after the compressor stops. If the flow does not stop after a few minutes, raise the opening pressure by turning the adjusting shaft counter clockwise until the flow stops.

If the unit is running on mains water, we recommend adjusting the water regulating valve to give 100ºF leav-ing water temperature or 220 PSIG condensing tem-perature. This will give the best compromise between low water flow and high operating efficiency. If the condenser water is being re-circulated through a cooling tower or a chilled water system, it is recommended that the water regulating valve to set for a lower condensing temperature. This will provide higher efficiency, lower operating cost and a lower sound level. The minimum condensing pressure required for satisfactory expan-sion valve operation is 170 PSIG. This corresponds to a leaving water temperature of 90ºF.

FORM 145.14-IOM1 (908)

13JOHNSON CONTROLS

WATERSIDE PRESSURE DROP(STANDARD UNIT-MANIFOLDED CONDENSERS)

0

2

4

6

8

10

12

14

16

18

20

22

24

26

28

30

32

34

36

38

40

6 8 10 12 14 16 18 20 22 24 26 28 30 32 34

UNIT FLOW RATE (GPM)

PRES

SUR

E D

RO

P (F

T H

20)

060 096 120

JOHNSON CONTROLS14

FORM 145.14-IOM1 (908)

DUCTWORK

When installing ductwork, adhere to local Codes and sensible practice. Minimize duct runs and avoid abrupt changes in direction where possible. Allow ample access space for servicing of the coils and changing of filters. Perform regular maintenance on ducts to increase unit life, maintain efficient operation, and reduce accumu-lation of explosive dust. Refer to blower performance charts, and engineer duct runs and accessory pres-sure drop so as not to exceed maximum external static values.

Canvas or other types of flexible collars are recom-mended for connecting the air ducts to the unit. The supply air duct collar can be connected directly to the blower outlet flanges. Return air may be ducted to the unit, or drawn directly from the return air space. If a ducted return is desired, duct connection flanges may be secured directly to the filter frame flanges. The filter frame on 5, 8 and 10 ton models has duct attachment flanges incorporated into the filter rack.

ELECTRICAL WIRING

Follow local electrical codes when making electrical con-nections. Units are completely factory wired for normal supply voltages (ie.208-230, 460, 575/3phase/60hz) Confirm unit specifications by checking unit data plate. All electrical components are accessible through an independent electrical panel located on the right hand side of the unit (condenser/compressor section). The electrical control boxes are located behind outer ac-cess panels. The compressor section electrical cover is provided with wiring diagrams on the inside, which must be opened to be read.

Provide individual power disconnects for each unit. Install a secure ground to the bonding lug located in the electrical control panel. If canvas flexible joints are used on ductwork, install a ground wire to the ductwork as well.

DISCONNECT AND LOCK OUT POWER WHEN SERVICING UNIT. UNIT MAY START AUTOMATICALLY IF POWER IS NOT DISCONNECTED. FAILURE TO DO SO MAY RESULT IN PERSONAL IN-JURY OR DEATH DUE TO ELECTRICAL SHOCK.

All wiring must comply with applicable local and national codes (NEC). Type and location of disconnect switches must comply with all applicable codes.

Unit requires installer to provide a 24volt thermostat with appropriate heating and cooling stages as needed. For low voltage wiring, 18 gauge wire may be used for up to 50 feet lengths. Low voltage runs up to 125 feet require 16 gauge wire.

All models are designed for single zone cooling applica-tions, utilizing space or return air thermostatic controls. A low voltage terminal block is provided for hook-up of conventional or programmable thermostats.

FORM 145.14-IOM1 (908)

15JOHNSON CONTROLS

MODEL VOLTAGE COMPRESSOR EVAPORATOR MIN. CCT. MAX FUSE / # QTY RLA LRA HP FLA RPM AMPACITY CCT. BKR. AMP

060A 208-230/3/60 1 @ 19.3 123.0 1.00 3.1 1800 27.23 45460/3/60 1 @ 7.5 49.5 1.00 1.6 1800 10.98 15575/3/60 1 @ 6.4 40.0 1.00 1.3 1800 9.30 15

096A 208-230/3/60 2 @ 13.9 88.0 1.50 4.4 1800 35.68 45460/3/60 2 @ 7.1 44.0 1.50 2.2 1800 18.18 25575/3/60 2 @ 5.4 34.0 1.50 1.8 1800 13.95 15

120A 208-230/3/60 2 @ 19.3 123.0 2.00 6.0 1800 49.43 60460/3/60 2 @ 7.5 49.5 2.00 3.0 1800 19.88 25575/3/60 2 @ 6.4 40.0 2.00 2.4 1800 16.80 20

OVERSIZE EVAPORATOR MOTORSMODEL VOLTAGE COMPRESSOR EVAPORATOR MIN. CCT. MAX FUSE /

# QTY RLA LRA HP FLA RPM AMPACITY CCT. BKR. AMP

096A 208-230/3/60 2 @ 13.9 88.0 2.00 6.0 1800 37.28 50460/3/60 2 @ 7.1 44.0 2.00 3.0 1800 18.98 25575/3/60 2 @ 5.4 34.0 2.00 2.4 1800 14.55 15

120A 208-230/3/60 2 @ 19.3 123.0 3.00 8.4 1800 51.83 70460/3/60 2 @ 7.5 49.5 3.00 4.2 1800 21.08 25575/3/60 2 @ 6.4 40.0 3.00 3.4 1800 17.80 20

SUPPLY AIR BLOWER PERFORMANCE

EXTERNAL STATIC PRESSURE - Inches W.C.

MODEL SUPPLY 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8

# CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

1800 846 0.41 936 0.48 1024 0.56 1107 0.64 1195 0.74 1259 0.82 1325 0.90 1400 0.99 - -

060A 2000 917 0.54 999 0.62 1079 0.71 1157 0.79 1233 0.89 1305 0.98 - - - - - -

2200 994 0.70 1069 0.79 1142 0.88 1214 0.98 - - - - - - - - - -

3000 810 0.65 900 0.78 986 0.91 1066 1.04 1143 1.17 1221 1.32 1294 1.48 1363 1.63 1433 1.79

096A 3200 851 0.78 938 0.91 1018 1.04 1095 1.18 1170 1.32 1236 1.42 1305 1.56 1380 1.74 1447 1.90

3400 892 0.91 974 1.05 1051 1.19 1125 1.33 1196 1.48 1266 1.64 1320 1.81 1390 1.90 - -

3600 927 1.05 1006 1.20 1081 1.34 1152 1.50 1220 1.65 1287 1.81 1353 1.98 1405 2.07 1472 2.17

120A 4000 1012 1.40 1085 1.56 1153 1.73 1220 1.89 1283 2.06 1345 2.23 1405 2.41 1464 2.59 1522 2.78

4400 1100 1.83 1166 2.00 1230 2.18 1292 2.37 1351 2.55 1410 2.74 1466 2.92 - - - -

NOTE:

1. At higher evaporator airflows, and wet bulb conditions condensate carry-over may occur. Adjust airflow downward as necessary.

2. Values include pressure drop from wet coil and clean filters.

3. Shaded areas indicate oversize motors

NOTES: Data shown for packaged unit installation, with single point power supply. Min. Circuit Ampacity (MCA) = 1.25 x Largest single motor Amps (FLA or RLA) + sum of the remaining motor Amps Max Fuse/Cct. Bkr Size (MFS) = 2.25 x Largest motor Amps + sum of the remaining motor amps Select next smallest NEC listed fuse from calculated value

STANDARD EVAPORATOR MOTORS

JOHNSON CONTROLS16

FORM 145.14-IOM1 (908)

MOTOR AND PULLEY DATA

STANDARD BLOWER MOTOR AND DRIVE DATA

Model Drive Range(RPM) Motor Adjustable

Motor PulleyFixed

Blower Pulley Belts

HP FrameSize RPM Eff.

(%)Pitch Dia.

(in)Pitch Dia.

(in) Designation Qty

60 946-1419 1 143 1800 82.5 1.9-2.9 3.5 4L-400 196 968-1340 1-1/2 145 1800 84.0 2.4-3.4 4.5 4L-440 1

120 1010-1346 2 145 1800 84.0 2.8-3.8 5.0 A43 1

OVERSIZE BLOWER MOTOR AND DRIVE DATA

Model Drive Range(RPM) Motor Adjustable

Motor PulleyFixed

Blower Pulley Belts

HP FrameSize RPM Eff.

(%)Pitch Dia.

(in)Pitch Dia.

(in) Designation Qty

96 1117-1489 2 145 1800 84.0 2.8-3.8 4.5 A42 1120 1212-1548 3 145 1800 86.5 3.4-4.4 5.0 A45 1

BLOWER SPEED ADJUSTMENT

The RPM of the supply air and condenser air blowers will depend on the required CFM, and the static resistances of both the supply/discharge and the return/intake duct systems. With this information, the RPM for the blowers can be determined from the blower performance tables. Adjustment of blower speed is accomplished as follows:

1) Loosen belt tension by moving motor towards the blower shaft via the adjustable mounting. 2) Loosen the setscrew in the adjustable motor pulley flange. Remove external key on pulleys 4 in. dia and

larger. 3) Slower speed will increase when moveable flange is adjusted towards the fixed flange (closed). Blower speed

will decrease when the moveable flange is adjusted away from the fixed flange (opened). Pulleys are adjust-able only in half-turn increments. Do not open pulley more than five full turns for “4L” and “A” belts, or six full turns for “B” belts.

4) Once the pulley has been opened/closed the appropriate number of turns, replace the external key and tighten the adjustment setscrew. Proper torque is 110-130 in.-lbs.

5) Install drive belt and adjust motor mount to tension belt.

FORM 145.14-IOM1 (908)

17JOHNSON CONTROLS

START-UP AND OPERATION

Prior to starting unit for the first time, turn the thermostat system switch to OFF - or raise the cooling setpoint to the highest temperature to prevent the unit from starting, then close the electrical disconnect switch.

Start unit and check rotation of fans and compressors.

Scroll compressors will only compress in one rotational direction. Three phase compressors will rotate in either direction depending upon phasing of the power. Since there is a 50-50 chance of connecting power in such a way as to cause rotation in the reverse direction, it is important to ensure proper rotation direction is achieved when the system is installed and operated.

Verification of proper direction is made by observing that suction pressure drops and discharge pressure rises when the compressor is energized. Reverse rota-tion also results in an elevated sound level as well as substantially reduced current draw.

There is no negative impact on durability caused by operating three phase Scroll compressors in the re-versed direction for a short period of time (under one hour). However, after several minutes of operation the compressors internal protector will trip.

If opposite rotation is needed, disconnect and reverse any two leads of the three phase supply. Reconnect power and observe for correct rotation.

Observe unit operation and check for unusual noise or vibration.

Ref. Charge 5 TON 8 TON 10 TONNo. of Circuits 1 2 2Per Circuit (lb) 4.625 4.188 5.125

High LowCut Out (PSIG) 400 25Cut In (PSIG) 275 60

PRESSURE SWITCH SETTINGS - ALL MODELS

JOHNSON CONTROLS18

FORM 145.14-IOM1 (908)

TYPICAL SCHEMATIC

FORM 145.14-IOM1 (908)

19JOHNSON CONTROLS

MAINTENANCE / SERVICE

DISCONNECT AND LOCK OUT POWER WHEN SERVICING UNIT. FAILURE TO DO SO MAY RESULT IN PERSONAL IN-JURY OR DEATH DUE TO ELECTRICAL SHOCK.

Exercise care when working around the sharp metal edges of door panels or door frames, etc. These edges can cause injury.

FILTERS - Inspect filters monthly and replace as necessary. Use UL Class 2 rated filters. Factory supplied filters are medium efficiency, extended surface pleated type. Replacements should be of the same type, to maintain optimum airflow performance.

EVAPORATOR AND CONDENSER COILS - Inspect the evaporator coil at filter change intervals. Inspect the condenser coil at least semi-annually. A dirty condenser coil will result in elevated condensing pressures and poor unit performance. Dirty or clogged evaporator coils causes low suction pressure and lost capacity. If the coils appear dirty, clean them using mild detergent or a commercial coil cleaning agent.

BLOWERS - Inspect both the evaporator and condenser blowers at each regular service interval. Clean blower wheels as needed. Bearings are permanently sealed ball type, and do not require lubrication. Check bearings for any signs of wear ( movement between inner and outer races ). Ensure bearing locking collars are secure to the shaft, and that collar locking screw is prop-erly set. Check that the blower wheel is tight on the shaft, and that the hub set screws are properly torqued.

DRIVE BELTS – Examine belts periodically for wear. Glazed areas on the drive surfaces indicate overheating due to belt slippage. Ideal tension is the lowest tension at which the belt will not slip under peak load conditions. Over-tensioning shortens belt and bearing life.

The tension on the belt should be adjusted for a deflec-tion of 1/64 of an inch per inch of belt span, with the ap-propriate force applied at the midpoint of the span. Ten-sion “New” belts at the maximum value indicated. Used belts should be maintained at the minimum value.

REFRIGERANT CIRCUIT(S) With the unit operating, check and record the compressor discharge and suction pressures. The compressor running current should also be recorded. A maintenance log of these readings can indicate if the unit is operating within it’s normal limits. Abnormal readings should be investigated, and the Cause corrected.

JOHNSON CONTROLS20

FORM 145.14-IOM1 (908)

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FORM 145.14-IOM1 (908)

21JOHNSON CONTROLS

NOTES

JOHNSON CONTROLS22

FORM 145.14-IOM1 (908)

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FORM 145.14-IOM1 (908)

23JOHNSON CONTROLS

LIMITED WARRANTYJohnson Controls warrants this product to be free from defects in workmanship or material for a period of one year from date of original installation or 18 months from date of shipment, whichever comes first

Johnson Controls obligation under this Warranty is LIMITED to repairing or replacing at our sole option, at our factory, any part thereof which shall be returned to our factory, transportation charges prepaid and which on examination proves to have been thus defective under normal domestic use not exceeding the fuel rating. The defective part should be returned through a qualified servicing dealer. Upon warranty determination, the replacement part will be shipped freight collect and assumes the unexpired portion of this Limited Warranty.

When a defective part can be repaired or replaced, Johnson Controls shall not be obligated to repair the entire unit or any part thereof other than the defective part.

This warranty applies only to the original homeowner, and is subject to the terms and conditions hereof.

COMPRESSOR – FIVE YEAR LIMITED WARRANTYIn addition to the One Year Limited Warranty, Johnson Controls warrants the compressor to be free from defects in workmanship or material for a period of five (5) years from the date of original installation. If a compressor fails during this five year period, a new com-pressor will be supplied. The customer will be responsible for freight costs from our factory for delivery of the replacement compres-sor and also for the return of the defective compressor which may be required under the terms of the Warranty. Labor and any other expense involved in replacing the compressor is not covered by this Warranty.

LABOR AND COST NOT COVEREDThis Warranty provides only replacement parts or credits, and does not provide for or cover any labor, shipping, handling or other costs for service travel, servicing, removing, or installing any parts.

EXCLUSIONSThis Warranty shall be void if:

1. The unit is not installed by a licensed or otherwise qualified or contractor and in compliance with the Installation Manual, applicable installation and good trade practices.

2. The defect or damage is caused by accident, abuse, negligence of any person or company, misuse, riot, flood, fire or Acts of God.

3. The unit is not operated and regularly serviced and maintained as called for in the Users’ Manual.4. Damages are caused by operating the unit in a commercial or corrosive atmosphere containing any damaging or dangerous

chemicals.5. The unit is modified or services in a manner not in accordance with the Installation Manual and Users’ Manual.6. Components, replacement parts, or other accessories not compatible with the unit or not approved by Johnson Controls have

been used with or attached to the unit.7. The defect or damage is not caused by Skymark, or it arises from circumstances beyond the control of Johnson Controls.

8. The unit is installed outside the United States or Canada, or has been removed from the place where it was originally installed.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, OBLIGATIONS OR LIABILITIES, EXPRESSED OR IMPLIED BY EMPLOYEES OR REPRESENTATIVES OF JOHNSON CONTROLS. ALL STATUTORY, EXPRESSED OR IMPLIED WARRANTIES, INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY NEGATED AND EXCLUDED. ANY CLAIMS FOR INCIDENTAL AND CONSEQUENTIAL DAMAGES, OR ANY OTHER DAMAGES OR EXPENSES BEYOND THE TERMS OF THIS LIMITED WARRANTY ARE HEREBY EXPRESSLY NEGATED AND EXCLUDED.

Subject to change without notice. Printed in U.S.A.Copyright© 2008 by Unitary Products Group. All rights reserved.

Form 145.14-IOM1 (908)Supersedes 145.14-IOM1 (708)

YorkPA

17405

P.O. Box 1592York, PA17405

Engineered SystemsProductsGroup