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WARNING:

Secure screws and paint protectors solidly

against unit base to hold lifting brackets in position.
Never use lifting brackets when the temperature is below
-10 F (-23 C). Never exceed 200 lbs per bracket of lifting
force. Never use lifting brackets for lifting other models
of air conditioning units. Lifting point should be directly
over the unit center of gravity. Failure to follow this
warning could result in personal injury or death.

1. Position brackets as close to the corners of unit as possible.

Be sure brackets are well outside of center of gravity (See
Fig. 2-5, and 7).

2. Position paint protectors and foam strips between screws

and painted surface of unit. Tighten screws until they make
contact with the paint protectors.

3. Secure device or hook of sufficient strength to hole in

bracket as shown in detail ’’C’’ of Fig. 7.

4. If wood top is available, use it for a spreader bar to prevent

straps from damaging unit. If wood top is not available, use
spreader bars of sufficient length.

UNITS WITH OPTIONAL BASE RAILS - Keep unit upright and
do not drop. Use spreader bars or top crate when rigging unit.
Rollers may be used to move unit across roof. Level unit for proper
condensate disposal. See Fig. 7 for additional information. Lifting
holes are provided in base rails as shown in Fig. 7, See Detail “A”
or “B-B”. Refer to rigging instructions on unit.

A.

INSTALLATION

1. Position the lifting bracket assembly around the base of the

unit. Leave the top shipping skid on the unit to act as a
spreader bar. Be sure the strap does not twist.

2. Place each of the four (4) metal lifting brackets into the

rigging holds in the composite pan.

3. Tighten the ratchet strap unit tight. Lifting brackets should

be secure in the rigging holds.

4. Attach the clevis or hook of sufficient strength to hole in the

lifting bracket (See Fig. 7).

5. Attach safety straps directly to the field supplied rigging

straps or clevis clip. Do not attach the safety straps to the
lifting brackets.

6. Use the top of the unit as a spreader bar to prevent the

rigging straps from damaging the unit. If the wood top is not
available, use a spreader bar of sufficient length to not
damage the unit.

Fig. 9—Typical Unit Installation

C95013

INDOOR
THERMOS

TAT

DISCONNECT
PER NEC

FROM
POWER
SOURCE

RETURN
AIR

TOP COVER

NOTES:
1. Extend  6-in.   

gravel apron around pad.

2. Provide a 3-ft service clearance  

 at front and rear sides of unit.

REAR SIDE OF UNIT

SIDE
OF UNIT
WITH DUCT
CONNECTIONS

1161 mm

(45 11/16”)

1110 mm

(43 11/16”)

933 mm

(36 3/4”)

SIDE OF UNIT WITH 
ACCESS  PANELS FOR
CONTROL BOX AND

 

INDOOR BLOWER HOUSING

UNIT OUTLINE

PAD

984 mm

(38 3/4”)

—8—

Fig.10—Typical Slab Layout

C95039

Содержание 657A

Страница 1: ...Also make sure the User s Manual and Replacement Guide are left with the unit after installation SAFETY CONSIDERATIONS Installation and servicing of air conditioning equipment can be hazardous due to...

Страница 2: ...s 2 5 for unit dimensions All units are shipped in a horizontal discharge configuration for installation on a ground level slab All units can be converted to down flow discharge configurations for roo...

Страница 3: ...h the roof curb Improperly applied gasketing also can result in air leaks and poor unit performance Curb should be level to within 1 4 in See Fig 8 This is necessary for unit drain to function properl...

Страница 4: ...maximum horizontal extension of a partial overhang must not exceed 48 in IMPORTANT Do not restrict outdoor airflow An air restriction at either the outdoor air inlet or the fan discharge may be detri...

Страница 5: ...unit has duct flanges on the supply and return air openings on the side of the unit See Fig 2 5 for connection sizes and locations When designing and installing ductwork consider the following CAUTIO...

Страница 6: ...2 Heater limit switches may trip at air quantities below those recommended NOTE A 90 degree elbow must be provided in the supply ductwork to comply with UL Underwriters Laboratories codes for use with...

Страница 7: ...recommended to be used for rigging Install brackets as follows Fig 7 657A Rigging Instructions UNIT SIZE CHART A CHART B Max Weight A B Max Weight C D LB KG IN MM IN MM LB KG IN MM IN MM 024 296 134...

Страница 8: ...tional information Lifting holes are provided in base rails as shown in Fig 7 See Detail A or B B Refer to rigging instructions on unit A INSTALLATION 1 Position the lifting bracket assembly around th...

Страница 9: ...ast 1 in lower than the unit drain pan condensate connection to prevent the pan from overflowing Prime the trap with water Connect a drain tube using a minimum of 3 4 in PVC 3 4 in CPVC or 3 4 in copp...

Страница 10: ...uct Cover C95015 Fig 14 Indoor Blower Access Panel C950016 INDOOR BLOWER ACCESS PANEL REMOVE SCREWS Fig 15 Converting Blower Assembly to Vertical Airflow C950010 PLUG ASSEMBLIES RACEWAY FILLER BRACKET...

Страница 11: ...oles in duct flanges as templates drill the remaining holes with the no 26 147 in drill 5 Fully secure the duct flanges using the remaining screws provided NOTE The finished kit installation accommoda...

Страница 12: ...perimeter of the vertical discharge opening cover See Fig 13 9 Using a straight edge and sharp knife cut the insulation around the perimeter of the cover Remove the screws TABLE 1 PHYSICAL DATA UNIT...

Страница 13: ...nit base Secure using screw removed in Step 7 Reconnect indoor fan motor leads and insert wire tie back into unit control box 13 Cover the horizontal duct openings Duct covers can be ordered as an acc...

Страница 14: ...ground to minimize the pos sibility of personal injury if an electrical fault should occur This ground may consist of an electrical wire connected to the unit ground lug in the control compart ment o...

Страница 15: ...the red lead to the contactor terminal from which the orange lead was disconnected 5 Using the wire nut removed from the red lead insulate the loose terminal on the orange lead 6 Wrap the wire nut wit...

Страница 16: ...60 70 70 80 100 100 22 5 26 0 33 7 39 1 45 1 50 1 67 9 78 1 25 30 35 40 50 60 70 80 22 8 30 30 036 208 230 1 187 253 16 0 88 0 1 2 2 6 3 75 5 00 5 60 7 50 7 50 10 0 11 30 15 0 18 1 20 8 27 1 31 3 36 1...

Страница 17: ...no additional leaks are not found 5 Charge unit with R 22 refrigerant using a volumetric charging cylinder or accurate scale Refer to unit rating plate for required charge Be sure to add extra refrige...

Страница 18: ...room tem perature Observe that compressor outdoor fan and indoor blower motors start Observe that compressor and outdoor fan shut down when control setting is satisfied and that indoor blower shuts do...

Страница 19: ...Fig 26 Wiring Diagram 024 to 042 208 230 60 1 C95037 19...

Страница 20: ...Fig 27 Wiring Diagram 048 to 060 208 230 60 1 with ECM Indoor C95038 20...

Страница 21: ...from obstructions and adjusted properly WARNING Disconnect electrical power to the unit and install lockout tag before changing blower speed Elec trical shock can cause serious injury or death Airflo...

Страница 22: ...simultaneously through the Y and G terminals of the thermostat respectively On units with a compressor time delay relay there is a built in 5 minute 45 seconds delay between compressor starts Energiz...

Страница 23: ...AT RANGE VIO setting or the AC HP SIZE BLU setting whichever is greater This may be a noticeable change in airflow When thermostat is satisfied contacts open deenergizing contactor and relay motors an...

Страница 24: ...C INDOOR BLOWER AND MOTOR NOTE Motors without oilers are prelubricated Do not attempt to lubricate these motors For longer life operating economy and continuing efficiency clean accumulated dirt and g...

Страница 25: ...1200 1400 1600 1800 2000 2200 5 20 0 030 0 033 0 037 0 042 0 047 0 052 0 060 0 067 0 075 TABLE 12 FILTER PRESSURE DROP IN WG UNIT SIZE FILTER SIZE IN 500 600 700 800 900 1000 1100 1200 1300 1400 1500...

Страница 26: ...5 6 24 1 25 0 33 3 34 8 33 8 32 6 31 8 31 0 30 2 80 16 4 17 6 21 4 16 8 23 2 31 8 32 2 31 3 30 4 29 5 28 6 85 9 4 8 6 14 7 21 6 29 4 29 8 28 9 27 8 27 0 90 11 6 18 9 26 4 27 3 26 4 25 5 95 3 7 10 8 18...

Страница 27: ...21 6 23 0 24 4 24 5 24 6 80 8 9 8 9 8 9 12 4 16 0 19 4 21 0 22 4 23 8 24 0 24 0 85 8 2 8 2 8 2 11 8 15 3 18 7 20 2 21 8 23 3 23 4 23 4 90 7 7 7 7 7 7 10 8 13 7 16 7 18 7 20 7 22 7 22 7 22 9 95 7 2 7...

Страница 28: ...NOTE Refer to the heating and or cooling sequence of operation in this publication as an aid in determining proper control operation TABLE 13H SUPERHEAT CHARGING TABLE UNIT 060 TEMP F AIR ENT COND EV...

Страница 29: ...evices that are of the fixed orifice type located in the header to the indoor and outdoor coils J LIQUID LINE STRAINER The liquid line strainer to protect metering device is made of wire mesh and loca...

Страница 30: ...ay valve and is directed to the cooling liquid line check valve It is then condensed and directed through subcooling circuits and out to the strainer and the check valve in the heating liquid line 2 T...

Страница 31: ...Dirty air filter Replace filter Dirty indoor or outdoor coil Clean coil Refrigerant overcharged Recover excess refrigerant Air in system Recover refrigerant evacuate system and recharge Heat Indoor a...

Страница 32: ...ghtness III START UP Supply Voltage C S __________ S R __________ R C __________ Compressor Amps C __________ S __________ R __________ Indoor Evaporator Fan Amps __________ TEMPERATURE Outdoor Conden...

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