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(4)Install And Connect The Case

Inside
wall

Rigid
ductwork

Air 
discharge 
outlet

Leveling legs

1. Remove the front case panel and pull the unit
out of the case. Place the empty case onto the
platform in the closet with the outdoor side facing 
the wall plenum opening. Align the case with
 plenum opening and attach.
2.

R

emove the rubble plug from the chassis.

3. Adjust the leveling legs so the case is level
 from side to side and from level to 1/4"  bubble
tilt to the outdoors.

remove  the  rubble  plug

Secondary 3/4” drain
option. If not used.
seal with a MNPT plug

Primary female
drain fitting 3/4”

Bolt case
to platform

External
drain
OR
Internal
Drain(s)

NOTE: Piping is not
supplied with the unit. 
Obtain locally.

4. Using field-supplied screws, bolt the case to the
platform.

5. Connect the internal or external drain(s) as
necessary.

(5a)Install And Ground The Unit 
To The Case

Unit Installed 

Through Front Of Case

1. Slide the back of the unit into the case. Push the

unit all of the way into the case until it stops.

NOTE:

 Either of the case sides may be

removed to enable the unit to be 
slid into the case.

2. Ground the unit to the case by installing the front

case-to-unit hex-bolt.

Hex bolt

side screws

Summary of Contents for VTAC

Page 1: ...INSTALLATION OPERATION SERVICE MANUAL VTAC VTACDC...

Page 2: ...ain refrigerants which under federal law must be removed prior to product disposal If you are getting rid of an old product with refrigerants check with the company handling disposal about what to do...

Page 3: ...elease for one time within 5 seconds Turn OFF unit connect R terminal to LS terminal then release for two times within 5 seconds Force shut down connect R terminal to LS terminal for over 5 seconds No...

Page 4: ...ng heating airflow and efficiency of the unit Replacement filters should be purchased from your local retailer where air conditioner and furnace accessories are sold Filter size required is 20 x 20 x1...

Page 5: ...WARNING RISK OF ELECTRIC SHOCK All electrical connections and wiring MUST be installed by a qualified electrician Follow the National Electrical Code N E C a n d o r l o c a l c o d e s a n d ordinanc...

Page 6: ...unit is properly wired measure the unit supply voltage Voltage must fall within the voltage utilization range LCDI Cords Underwriters Laboratories and the National Electric Code NEC now require power...

Page 7: ...ase Panel Required Accessories Check the Essential Elements label on the unit Architectural Louver Cutout Dimensions 20 W x 32 1 4 H Wall Plenum 6 D x 19 3 4 W x 32 H 8 D x 19 3 4 W x 32 H 12 D x 19 3...

Page 8: ...xible or rigid duct Air discharge outlet Unit Wall plenum Wall plenum divider Drain fittings 3 4 Filter bracket Secure platform to the floor 8 min for drain access Platform 23 1 4 x 23 1 4 square Min...

Page 9: ...nector Primary Drain Centerline of cutout is approximately 5 1 4 from left case wall and 8 1 2 from back case wall Secondary Drain centerline of cutout is approximately 6 1 2 from left case wall and 5...

Page 10: ...nstallation requirements Follow the Installation Instructions provided with the return air grille accessory for installation details All these options need field supplied accessories NOTE Use only one...

Page 11: ...H 8 D x 19 3 4 W x 32 H 12 D x 19 3 4 W x 32 H 15 D x 19 3 4 W x 32 H Case Left side of platform 23 1 4 min 8 min for drain access NOTE Specific cutout size for drain connections needs to be determin...

Page 12: ...the case The total flow rate CFM and external static pressure ESP available can be estimated from the chart below The collar on top of the case accepts standard 10 duct Pull all duct tight Extra duct...

Page 13: ...g Secondary 3 4 drain option If not used seal with a MNPTplug Primary female drain fitting 3 4 Bolt case to platform External drain OR Internal Drain s NOTE Piping is not supplied with the unit Obtain...

Page 14: ...nect The Top Duct 1 Install the duct onto the air discharge outlet Case top duct adjusting screws Top duct Clamp 2 Secure the top duct to the unit by turning the four case top duct adjusting screws un...

Page 15: ...he fan will run continuously whenever power is applied in this mode In the AUTO position the fan will cycle on and off with the compressor or electric heater Starting delay You may notice a few minute...

Page 16: ...rk applications Switch Description Function Factray Setting 1 Anti cold air ON Enable OFF Disable ON 2 Heat pump ON Enable OFF Disable ON 3 Electric heater ON Enable OFF Disable ON 4 Heat Pump Prior O...

Page 17: ...ing protection defrosting E9 Refrigerant high pressure protection Solution Check sensor connection Replace it if broken Check sensor connection Replace it if broken Check sensor connection Replace it...

Page 18: ...m right button on keypad The unit may be in a diagnostic condition Check checking Control section to determine if unit has had a failure The unit may be set for C instead of F see the keypad configura...

Page 19: ...160421_V 01...

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