Turbo Air Smart 7 Installation And Operation Manual

Turbo air Speeds Up the Pace of Innovation

Part No. KUCST2901

Refrigeration System
Installation & Operation Manual

Please read this manual completely before attempting to install or operate this equipment !

Package Unit ( TOP MOUNT )

CONTENTS

Safety Information …………………………………… 3

Inspection ……………………………………………… 3

Locating SMART 7 Package Unit…………………… 6

Installation Procedure ………………………………… 8

Sequence of Operation ……………………………… 10

Controller Setting …………………………………… 11

System Troubleshooting …………………………… 19

Electrical Wiring Diagram…………………………… 20

2

Safety Information

Be sure all power sources are turned off before checking the electric wiring or

appliances to avoid electric shock.

Do not run fan if cover or case is removed. This is to avoid electric shock.

Keep finger away from moving parts.

Avoid touching refrigerant lines. Some parts are very hot and can cause burns.

Avoid contacting sharp edges or coil surface that are a potential injury hazard.

Avoid touching the units or electric box in wet hands to prevent electric shock.

Please call the specialized installation company or trained personnel when you installing,

moving, operating of the unit.

Field wiring must confirm to the requirements of units’ electric specification.

Inspection

A person at the job site to receive material holds responsibility. Each shipment should

be carefully inspected against the bill of lading. The shipping receipt should not be

signed before careful inspection. Check carefully for concealed damage. Any shortage

or damages should be reported to the delivering carrier. If damaged material becomes

the delivering carrier’s responsibility and it should not be returned to Turbo air unless

prior approval is given to do so. Check the serial tag information with invoice. Report

any discrepancies to Turbo air sales representatives.

3

Table 1. INDOOR UNIT - Medium Temperature (Air Defrost System)

Ambient 95℉

Model

STI050MR404A1 5026 5356 115/1/60 11.3 20 R404A 28 YES 5-20R 195 A

STI050MR404A2 5026 5356 208~230/1/60 4.7 15 R404A 28 YES 6-15R 195 A

STI073MR404A2 8059 8675 208~230/1/60 6.0 15 R404A 42 YES 6-15R 226 A

STI100MR404A2 11652 12556 208~230/1/60 14.0 20 R404A 53 YES 6-20R 311 B

STI100MR404A3 11652 12556 208~230/3/60 10.1 15 R404A 53 NO - 318 B

STI126MR404A2 15092 16376 208~230/1/60 14 20 R404A 60 NO - 320 B

STI126MR404A3 15092 16376 208~230/3/60 9.9 15 R404A 60 NO - 317 B

Capacity BTUH

35℉ 38℉

Voltage MCA MOPD

Refrigerant.

Wt

Ref.

oz

Plug

Supplied

Matching

NEMA

Receptacle

NET

Weight

(Lbs)

Fig.

Table 2. INDOOR UNIT – Low Temperature (Electric Defrost System)

Ambient 95℉

Model

STI021LR404A2 2849 2423 1643 208~230/1/60 8.0 15 R404A 28 YES 6-15R 195 A

STI048LR404A2 5957 4603 3514 208~230/1/60 16.4 25 R404A 42 YES 6-15R 226 A

STI053LR404A2 7395 5406 4002 208~230/1/60 19.5 30 R404A 53 YES 6-20R 311 B

STI053LR404A3 7395 5406 4002 208~230/3/60 13.3 20 R404A 53 NO - 318 B

STI069LR404A2 9139 7520 5439 208~230/1/60 19.8 30 R404A 60 NO - 320 B

STI069LR404A3 9139 7520 5439 208~230/3/60 13.9 20 R404A 60 NO - 317 B

Capacity BTUH

0℉ −10℉ −20℉

Voltage MCA MOPD

Refrigerant.

Wt

Ref.

oz

Plug

Supplied

Matching

NEMA

Receptacle

NET

Weight

(Lbs)

Fig.

Table 3. OUTDOOR UNIT - Medium Temperature (Air Defrost System)

Ambient 95℉

Model

STX050MR404A2 5026 5356 208~230/1/60 4.7 15 R404A 24 NO - 205 A

STX073MR404A2 8059 8675 208~230/1/60 6.0 15 R404A 28 NO - 236 A

STX100MR404A2 11652 12556 208~230/1/60 14.0 20 R404A 46 NO - 319 B

STX100MR404A3 11652 12556 208~230/3/60 10.1 15 R404A 46 NO - 327 B

STX126MR404A2 15092 16376 208~230/1/60 14 20 R404A 46 NO - 329 B

STX126MR404A3 15092 16376 208~230/3/60 9.9 15 R404A 46 NO - 325 B

Capacity BTUH

35℉ 38℉

Voltage MCA MOPD

Refrigerant.

Wt

Ref.

oz

Plug

Supplied

Matching

NEMA

Receptacle

NET

Weight

(Lbs)

Fig.

Table 4. OUTDOOR UNIT – Low Temperature (Electric Defrost System)

Ambient 95℉

Model

STX021LR404A2 2849 2423 1643 208~230/1/60 8.0 15 R404A 28 NO - 213 A

STX048LR404A2 5957 4603 3514 208~230/1/60 16.4 25 R404A 42 NO - 248 A

STX053LR404A2 7395 5406 4002 208~230/1/60 19.5 30 R404A 53 NO - 320 B

STX053LR404A3 7395 5406 4002 208~230/3/60 13.3 20 R404A 53 NO - 317 B

STX069LR404A2 9139 7520 5439 208~230/1/60 19.8 30 R404A 60 NO - 328 B

STX069LR404A3 9139 7520 5439 208~230/3/60 13.9 20 R404A 60 NO - 324 B

Capacity BTUH

0℉ −10℉ −20℉

Refrigerant.

Voltage MCA MOPD

4

Ref.

Wt

oz

Plug

Supplied

Matching

NEMA

Receptacle

NET

Weight

(Lbs)

Fig.

Figure A. INDOOR UNIT – Medium Cabinet (Opening Size : 25 inch x 25 inch)

Figure B. INDOOR UNIT – Large Cabinet (Opening Size : 25 inch x 38.5 inch)

Figure C. OUTDOOR UNIT – Medium Cabinet (Opening Size : 25 inch x 25 inch)

Figure D. OUTDOOR UNIT – Large Cabinet (Opening Size : 25 inch x 38.5 inch)

5

Locating SMART 7 Package Unit

Unit Installation Requirements

1. You must ensure before unit placement on the roof of box that the structural strength of the

box can withstand the weight of SMART7 equipment

2. The unit should be installed away from noise sensitive site and must have proper support for

noise and vibration not to be transmitted into the building.

3. Unit must be located away from steam, hot air or heat generator and placement should be

selected in consideration of ventilation.

4. Indoor units are designed for indoor use only with ambient between 50℉~100℉ and have no

system control following ambient variation.

5. Evaporator section must not be located over doors.

6. Air circulation must cover completely inner space.

7. Installation, service and maintenance must be carried out by licensed contractor in conformity

with the local standard construction code.

Ignoring above requirement will result in system fault, shorten life span and void the warranty,

Unit Transport Requirements.

1. Do not remove shipping skid until ready to move it upon box rooftop.

2. Always watch out not to contact sharp edges and coil surfaces to avoid potential injury. Wear

safety gears always during installation.

3. Use spreader bar to lift the unit upon roof of box not to damage on the cabinet.

4. Do not remove compartment cover of the compressor section, hood for outdoor unit.

Unit Installation location.

1. Space between wall and air in/outlet must be secured at least 2inch.(refer to Fig. 1)

2. There must be 2 feet space secured at least above unit for service and removal of top

case.(Refer to Fig. 1)

3. Single unit installation must be carried out following Fig. 2.

4. Two or more unit installation must be carried out following Fig. 3.

6

Figure 1. Minimum Clearance at Installation of Unit.

W = UNIT WIDTH

Figure 2. One Unit

W = UNIT WIDTH

Figure 3. Two or more Unit

7

Installation procedure

Indoor use only ( STI Model )

1. Carefully check package for damages during transportation and unit after opening the

package.

2. Requirements must be followed for installing location on the page of 6~7.

3. Ensure weights of units on the page of 4~5 and that structural strength of the box can

withstand of the weight of the unit.

4. Clean the roof surface of box for close adhesion of unit gasket to the surface.

5. Consult to box manufacturer for any processes necessary to ensure the integrity of the

exposed form in the panels is not compromised.

6. Check mounting surface as level of surface should be within 1/8inch per a feet.

7. Place carefully unit into the provided opening with the evaporator air flow directly forward the

door and ensure the grill not to damage during installation.

8. Secure that the condenser airflow is not obstructed.

9. Drain is not needed as condensate is vaporized by hot gas lines in the drain panel from the

compressor discharge.

10. Install trim pieces around the open on the ceiling of box.

Outdoor use only ( STX Model )

Installation is the same as indoor models except as follows :

1. Units must be curb mounted ( Figure 4 ~ 5 ). Cabinet size refers to dimension size on page 5.

2. The condensate drain outlet pipe is located on the side of the unit. Field piping may be

connected to the outlet provided it is adequately sloped and heated for freezing weather

conditions.

3. After connecting electrical power, reinstall compressor compartment cover and weather hood.

Figure 4. Curb placed on roof of box.

Figure 5. Roof membrane placed over curb.

8