background image

Page  6

Electrical Connections

Electrical wiring and grounding must be installed in accordance
with local codes or, in the absence of local codes, with the National
Electrical Code ANSI/NFPA 70, Latest Revision.

Disconnect Switch

Provide an approved weather-proof disconnect either on the side
of the unit or within close proximity and

 within sight of the

unit.

Over Current Protection

The branch circuit feeding the unit must be protected as shown
on the unit rating plate.

Power Wiring

The power supply  lines must be run in weathertight conduit to
the disconnect and into the bottom of the unit control box.
Provide strain relief for all conduit with suitable connectors.

Provide flexible conduit supports whenever vibration transmis-
sion may cause a noise problem within the building structure.

Ensure all connections are made tight.  See Figures 5 and 6:
Typical Field Wiring Diagrams.

NOTES:

1.

  For branch circuit wiring (main power supply to the unit

disconnect), wire size for the length of run should be
determined using the circuit ampacity found on the unit
nameplate and the N.E.C.

2.

  For more than 3 conductors in a raceway or cable, see the

N.E.C. for derating the ampacity of each conductor.

3.

  Wire size is based on 75 degrees C rated wire insulation.

Grounding

The unit must be electrically grounded in accordance
with local codes or the National Electrical Code.

Accessories

All electrical accessories must be installed and wired  according
to the instructions packaged with the accessory.

Control Wiring (Class II)

Low voltage control wiring should not be run in the same conduit
with the power wiring unless Class I wire of the proper voltage
rating is used.  Route the thermostat cable or equivalent single
leads of No. 18 AWG colored wire from the thermostat subbase
terminals through the rubber grommet on the unit.  See Figure
1 for the control entry location.  Make connections as shown on
the unit wiring diagram and in Figures 5 and 6.

Do not short thermostat wires since this will damage the control
transformer.

Electrical Wiring

WARNING:

 

TO PREVENT INJURY OR DEATH 

DUE TO ELECTRICAL SHOCK OR CONTACT WITH MOVING 
PARTS. LOCK UNIT DISCONNECT SWITCH IN OPEN 
POSITION BEFORE SERVICING UNIT.

Recommended wire sizes and lengths for installing the unit
thermostat are provided in 

Table 1:  Thermostat Wire Size

and Maximum Length.

  The total resistance of these low

voltage wires must not exceed one (1) ohm.  Any resistance in
excess of one (1) ohm may cause the control to malfunction
because of the excessive voltage drop.

IMPORTANT:  Upon completion of wiring check all elec-
trical connections, including factory wiring within the
unit.

Make sure all connections are tight.  Replace and secure all
electrical box covers and access doors before leaving the unit or
turning on the power to the unit.

After all electrical wiring is complete, set the thermostat system
switch on the 

OFF

 position so that the compressor will not run

and then apply power by closing the system main disconnect
switch.  This will activate the compressor sump heat.  Do not
change the Thermostat System Switch until power has been
applied long enough to evaporate any liquid HCFC-22 in the
compressor.  It is recommended that the sump heat be energized

for a minimum of eight (8) hours prior to starting the unit.

Electrical Wiring

Table 1

Thermostat Wire Size and Maximum Length

WIRE SIZE

MAXIMUM LENTGH (Ft)

18

75

16

125

14

200

Table 2.  Filter Data

•These units require filters with adequate filter area be pro-
vided in the return air duct.  Table 2 below gives filter data.  The
specific location of the filters depends on the type of installation
and the layout of the duct system.  Be sure the owner is aware
of the location of the filter and the need to change them as
required.  The Filter Size (Sq.. Ft.) are based on 300 F.P.M. face
velocity. If permanent filters are used, size per mfg. recommen-
dation with clean resistance of .05" WC.

Air Filters

UNIT

NOMINAL

CFM

FILTER*

(Sq Ft) SIZE

FILTER

RESISTANCE

TCH024B

800

2.67

0.05

TCH030B

1000

3.33

0.05

TCH036B

1200

4.00

0.05

TCH042B

1400

4.67

0.05

TCH048F

1600

5.20

0.05

TCH060F

2000

6.67

0.05

Содержание TCH024C1

Страница 1: ...ts of this product that are capable of conducting electri cal current are grounded If grounding wires screws straps clips nuts or washers used to complete a path to ground are removed for service they must be returned to their original position and properly fastened ALL phases of this installation must comply with NATIONAL STATE and LOCAL CODES These instructions do not purport to cover all variat...

Страница 2: ...ed mounting pads should be placed beneath the unit to prevent transmission of vibration to the occupied structure Select a location that will minimize the length of the supply and return ducts Select a location where external water drainage cannot collect around the unit Give consideration to shade appearance and noise This unit was designed for multiple applications rooftop out door ground level ...

Страница 3: ...1 INSTALLATION SERVICE CLEARANCE BACK 48 0 LEFT SIDE 24 0 RIGHT SIDE 36 0 TOP 36 0 MODEL APPROX CORNER WTS LBS TOTAL WEIGHT LBS COIL DIMENSION IN W1 W2 W3 W4 A B TCH024C 76 73 63 68 279 14 16 TCH030C 77 71 62 70 281 14 16 TCH036C 79 75 66 73 293 14 16 TCH042C 80 79 72 77 308 20 16 ...

Страница 4: ...it Dimensions and Clearances 1 INSTALLATION SERVICE CLEARANCE BACK 48 0 LEFT SIDE 24 0 RIGHT SIDE 36 0 TOP 36 0 MODEL APPROX CORNER WTS LBS TOTAL WEIGHT LBS W1 W2 W3 W4 TCH048F 126 126 95 95 443 TCH060F 112 112 111 111 450 ...

Страница 5: ...ended to prevent transmission of vibration to the structure Isolate with at least four 4 vibration isolators or equivalent The isolators must provide a minimum clearance of 1 4 beneath the unit to permit air to circulate under the unit s base After the unit has been properly positioned complete the instal lation according to the instructions in the following sections of this manual Then follow the...

Страница 6: ...not short thermostat wires since this will damage the control transformer Electrical Wiring WARNING TO PREVENT INJURY OR DEATH DUE TO ELECTRICAL SHOCK OR CONTACT WITH MOVING PARTS LOCK UNIT DISCONNECT SWITCH IN OPEN POSITION BEFORE SERVICING UNIT Recommended wire sizes and lengths for installing the unit thermostat are provided in Table 1 Thermostat Wire Size and Maximum Length The total resistanc...

Страница 7: ...Page 7 Typical Field Wiring Diagram TCH024 030 036 042C and TCH048 060F Units Cooling Only TCH024 030 036 042C and TCH048 060F Units With Supplementary Heaters B757385 5 6 ...

Страница 8: ...aced in the COOL position the unit s operation is automatic A fan switch on the thermostat also providesforcontinuousoperationoftheevaporatorfanifdesired This is the ON position With the fan switch in the AUTO position thefanwillonlyoperatewiththecoolingcycle Continu ous fan mode during cooling operation may not be appropriate in humid climates If the indoor air exceeds 60 relative humidity or sim...

Страница 9: ...f low voltage is encountered check the size and length of the supply line from the main disconnect to the unit The line may be undersized for the length of the run Cooling Shut Down Place the system selector switch in the OFF position or reset the thermostat at a setting above the room temperature Do not de energize the main power disconnect except when the unit is to be serviced Power is required...

Страница 10: ... Outdoor Coil Unfiltered air circulated through the unit s outdoor coil can cause the coil s surface to become clogged with dust dirt etc To clean the coil stroke the coil surface with a soft bristled brush vertically that is in the direction of the fins Be sure to keep all vegetation away from the outdoor coil area Maintenance Performed by Serviceman Tokeepyourunitoperatingasdesigned themanufactu...

Страница 11: ...ally this limited warranty will not apply unless the packaged unit is 1 installed by a licensed or qualified HVAC technician 2 applied and installed in accordance with the manufacturer s recommendations and its Installer s guide and 3 in compliance with all industry standards national state and local codes This limited warranty does not cover failure of your packaged unit if it is damaged while in...

Страница 12: ...ty Warrantor shall not be obligated to pay for the cost of lost refrigerant No liability shall attach to Warrantor until products have been paid for and then liability shall be limited solely to the purchase price of the equipment under warranty shown to be defective This limited warranty does not apply if the packaged unit was purchased direct i e from internet websites or auctions on an uninstal...

Отзывы: