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Summary of Contents for Stealth SC-2436-HP
- Page 1 Owner's Manual Original Instructions Ducted Unitary Inverter Air Conditioner Heat Pump Condenser 2-3 Ton 4-5 Ton Outdoor Unit Models: SC-2436-HP SC-4860-HP...
- Page 2 To Users Thank you for selecting Stealth Home Comfort product. Please read this instruction manual carefully before installing and using this product. (1) Not for use by children under 8 years old without supervision. (2) In general it is recommended to leave power connected during stand-by status.
- Page 3 Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: Damage the product due to improper use or misuse of the product. Alter, change, maintain or use the product with other equipment without abiding by the instruction manual of manufacturer.
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Page 4: Table Of Contents
Contents 1 Safety Precautions ............1 2 Product Introduction ............5 2.1 Operating Range ..............5 2.2 Standard Accessories .............5 2.3 Optional Accessories..............5 3 Installation ................5 3.1 Installation Preparation ............5 3.2 Unit Installation ..............11 3.3 Electrical Installation ............18 3.4 Check after Installation ............ -
Page 5: Safety Precautions
Stealth Unitary Split Heat Pump Air Conditioner 1 Safety Precautions This product can’t installed corrosive, inflammable Fire hazard or serious injury could occur. explosive environments. Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage. - Page 6 Stealth Unitary Split Heat Pump Air Conditioner Electrical shock hazard: Failure to follow this warning could result in personal injury or death. Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch.
- Page 7 Stealth Unitary Split Heat Pump Air Conditioner (8) During installation, use the specialized accessories and components, otherwise water leakage, electric shock or fire hazard may occur. (9) Please install the air conditioner in a secure place that can withstand the weight of air conditioner.
- Page 8 Stealth Unitary Split Heat Pump Air Conditioner (6) Never install the air conditioner in the following places: a) Places with oil smoke or volatile liquid: plastic parts may deteriorate and fall off or even cause water leakage. b) Places with corrosive gas: copper pipe or the welding parts may be corroded and cause refrigerant leakage.
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Page 9: Product Introduction
Stealth Unitary Split Heat Pump Air Conditioner 2 Product Introduction 2.1 Operating Range Cooling Heating — Outdoor 5 ° F~129.2 ° F -22 ° F ~75.2 ° F temperature 2.2 Standard Accessories Outdoor unit accessories Name Appearance Q'ty Usage To plug the unused drain... - Page 10 Stealth Unitary Split Heat Pump Air Conditioner Choose a location that meets these conditions. (1) Noise and air flow produced by the outdoor unit will not disturb the neighbors. (2) Select a location that is safe for animals and plants. If not, please add safety fences to protect the unit.
- Page 11 Stealth Unitary Split Heat Pump Air Conditioner Unit: inch(mm) Dimensions Model 20-7/8 32-1/4 19-1/8 18-1/8 SC-2436-HP (940) (530) (820) (610) (486) (460) SC-4860-HP Unit: inch(mm) Dimensions Model 42-3/4 16-7/8 53-3/4 24-1/2 15-1/2 14-1/2 SC-4860-HP (1085) (427) (1365) (620) (395) (370) 3.1.3 Diagram of Unit Installation Space and Location...
- Page 12 Stealth Unitary Split Heat Pump Air Conditioner 1) When one outdoor unit is to be installed. (inches ") — ≥4" A,B,C, — ≥12" ≥4" ≥4" — ≥4" ≥40" A,B,C,E — ≥12" ≥6" ≥6" ≥40" — ≥40" — ≥40" ≥40" ＜ H ＞...
- Page 13 Stealth Unitary Split Heat Pump Air Conditioner 2) When two or more outdoor units are to be installed side by side. Unit: inches " 16" 16" (inches ") A,B,C — ≥12" ≥12" ≥40" A,B,C,E — ≥12" ≥12" ≥40" ≥40" —...
- Page 14 Stealth Unitary Split Heat Pump Air Conditioner 3) When outdoor units are installed in rows. Unit: inches 8" 160" 8" 80" 400mm = 16" 177" 24" 80" (inches ") ≤ 1/2H b ≥ 10" 1/2H ＜ H ≤ H b ≥ 12"...
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Page 15: Unit Installation
Stealth Unitary Split Heat Pump Air Conditioner 3.2 Unit Installation If using this unit with 3rd party equipment, please make sure there is a bi-directional TXV which throttles the unit when it operates in cooling mode and opens fully when it operates in heating mode, present in the indoor unit (air handler or A coil). - Page 16 Stealth Unitary Split Heat Pump Air Conditioner 3.2.2 Connection Pipe Installation 3.2.2.1 Installation Notice and Requirement on Connection Pipe Installation method: Connect the adaptors to the unit prior to any brazing. When bending a connection pipe, be careful not to crimp the pipe.
- Page 17 Stealth Unitary Split Heat Pump Air Conditioner Remove the cut-off valve of outdoor unit and take out the flare nut from the bag of indoor unit accessories. Then fit the flare nut on the pipe and use a flaring tool to flare the mouth of connection pipe.
- Page 18 Stealth Unitary Split Heat Pump Air Conditioner 3.2.2.4 Connection Pipe of the Units When connecting lines, please follow the instructions shown below. Use a ①. torque wrench and a second wrench to prevent twisting. When connecting the tapered screw nut, first apply Nylog on its inner and ②.
- Page 19 Stealth Unitary Split Heat Pump Air Conditioner Pipe diameter (inch) Tightening torque (ft-lbs) Ф1/4" 16-20 26-30 Ф3/8" 33-37 Ф1/2" 45-48 Ф5/8" 52-55 Ф3/4" Ф7/8" 59-62 3.2.2.5 Sealing of the Knock-out Hole If your model has a knock-out hole as shown below, seal with insulation to to prevent small animals from entering.
- Page 20 Stealth Unitary Split Heat Pump Air Conditioner The evacuation duration vaires, depending on the unit’s capacity. Model Time(min) SC-2436-HP approx 30 SC-4860-HP approx 45 After this time, check the pressure gauge at the low pressure side of the manifold valve assembly. It should read -0.1MPa, if not, it indicates there is leak somewhere.
- Page 21 Stealth Unitary Split Heat Pump Air Conditioner 3.2.4 Refrigerant Adding See the following table for the amount of additional refrigerant. Item Standard Additional refrigerant line length amount for extra line Model SC-2436-HP .032 oz/ft SC-4860-HP 3.2.5 Installation of Drain Pipe 3.2.5.1 Outdoor Side Drainage Pipe...
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Page 22: Electrical Installation
Stealth Unitary Split Heat Pump Air Conditioner 2) The whole pipeline should be taped together to avoid water returning to the room. 3) Attach the whole pipeline onto the wall. 3.3 Electrical Installation 3.3.1 Requirement and Notice on Electrical Installation... - Page 23 Stealth Unitary Split Heat Pump Air Conditioner To avoid short circuits, all power and thermostat wiring to the outdoor unit ⑦. must not contact any metal beams or sharp edges on the ceiling, or contact any metal burrs or sharp metal edges.
- Page 24 Stealth Unitary Split Heat Pump Air Conditioner 3) Use a round terminal fastener or clamp to fix the round terminal firmly on the exposed wire end. 4) Locate the round terminal conduit. Use a screwdriver to replace it and tighten up the terminal screw (as shown below).
- Page 25 Stealth Unitary Split Heat Pump Air Conditioner Wires of outdoor units Single-phase unit: SC-2436-HP, SC-4860-HP. NOTE: Y means Compressor control signal; B which is energized under the heating mode means 4-way valve control signal; D means defrosting signal; R means 24V AC power supply;...
- Page 26 Stealth Unitary Split Heat Pump Air Conditioner ⑧. When connecting the high voltage wiring, make sure the phase of the power supply matches the corresponding terminals, otherwise the compressor will get reversed and be damaged. Remove the front panel of the outdoor unit to insert the high voltage and thermostat wiring.
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Page 27: Check After Installation
Stealth Unitary Split Heat Pump Air Conditioner Single-phase unit: SC-4860-HP. 3.4 Check after Installation Check Items after Installation Possible events due to improper Check items installation The unit may vibrate or produce Is the main body installed securely? noise. Low refrigerant leads to poor... -
Page 28: Test Running
Stealth Unitary Split Heat Pump Air Conditioner Possible events due to improper Check items installation Do the specifications of wires comply with The unit may fail or its components damaged. the requirement? Unit performance may Is there any obstacle blocking the air inlet and outlet of the units? become unsatisfactory. -
Page 29: Maintenance
Stealth Unitary Split Heat Pump Air Conditioner ②. If there’s no display on the thermostat, check the wiring connection between the unit and the thermostat. 4 Maintenance 4.1 Troubleshooting If your air conditioner fails to function normally, please first check the following... - Page 30 Stealth Unitary Split Heat Pump Air Conditioner The following situations are not operation failures. Problem Time of occurrence Cause If the unit is running under Mist comes from the air high humidity, the wet air in During operation. conditioner. the room will be quickly cooled down.
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Page 31: Error Code
Stealth Unitary Split Heat Pump Air Conditioner Problem Time of occurrence Cause The room smell or the The air conditioner During operation. smell of cigarette comes generates a smell. out through the units. Check the above items and adopt the corresponding corrective measures. If the air conditioner continues to function poorly, please stop the air conditioner immediately and contact an authorized local service center. -
Page 32: Unit Maintenance
DC Inverter U-match Series for R410A Unitary Split Air Conditioner Error code Error Driver reset protection Over-current protection Master control and driver communication error Driver module sensor error Driver module high temperature protection AC current protection Driver current error Bus low-voltage protection Bus high-voltage protection Charge loop error Drive memory chip error... -
Page 33: Notice On Maintenance
Stealth Unitary Split Heat Pump Air Conditioner 4.3.1 Heat Exchanger of Outdoor Unit Conduct cleaning for the condenser coil of outdoor unit periodically, clean it once at least in every two months. Clean the dust and sundries on the surface of the condenser coil with dust collector and nylon brush, if there’s compressed... - Page 34 Stealth Unitary Split Heat Pump Air Conditioner 4.4.1.1 General Work Area All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out. Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off.
- Page 35 Stealth Unitary Split Heat Pump Air Conditioner 4.4.1.4 Checks to electrical devices Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with.
- Page 36 Stealth Unitary Split Heat Pump Air Conditioner 4.4.3 Repair to Intrinsically Safe Components Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use.
- Page 37 Stealth Unitary Split Heat Pump Air Conditioner practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to reuse of reclaimed refrigerant. It is essential that electrical power is available before the task is commenced: Become familiar with the equipment and its operation.
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Page 38: After-Sales Services
Stealth Unitary Split Heat Pump Air Conditioner 4.4.8 Recovery When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed.
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