Instruction Manual
Table Of Contents
- Installation Instructions
- NOTE: Read the entire instruction manual before starting the installation.
- SAFETY CONSIDERATIONS
- INSTALLATION RECOMMENDATIONS
- 1. Locate unit away from windows, patios, decks, etc. where unit operation sound may disturb customer.
- 2. Ensure that vapor and liquid tube diameters are appropriate for unit capacity.
- 3. Run refrigerant tubes as directly as possible by avoiding unnecessary turns and bends.
- 4. Leave some slack between structure and unit to absorb vibration.
- 5. When passing refrigerant tubes through the wall, seal opening with RTV or other pliable silicon–based caulk (see Fig. 1).
- 6. Avoid direct tubing contact with water pipes, duct work, floor joists, wall studs, floors, and walls.
- 7. Do not suspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct contact with tubing (see Fig. 1).
- 8. Ensure that tubing insulation is pliable and completely surrounds vapor tube.
- 9. When necessary, use hanger straps which are 1 in. wide and conform to shape of tubing insulation (see Fig. 1).
- 10. Isolate hanger straps from insulation by using metal sleeves bent to conform to shape of insulation.
- Fig. 1 – Connecting Tubing Installation
- INSTALLATION
- NOTE: Read the entire instruction manual before starting the installation.
- Unpack Unit
- Inspect Equipment
- Outdoor Unit Connected To Factory Approved Indoor Unit
- Service Valves
- 1. Remove plastic cap holding piston in piston body of liquid service valve.
- 2. Check that piston size (stamped on side of piston) matches with number listed on unit rating plate. Return piston to piston body of liquid service valve (either direction).
- 3. Find plastic bag taped to unit containing copper adapter tube, brass nut, and plastic washer.
- 4. Install plastic washer in the seat inside piston body.
- 5. Fit brass nut onto adapter tube and install tube onto liquid service valve. Tighten nut finger tight, then wrench additional ½ turn only [15-ft lbs (20.3 N-m)]. Over tightening may damage the plastic washer and service valve’s piston body.
- Fig. 4 – Liquid Service Valve with Heating Piston and Adapter Tube
- Fig. 5 – Vapor Service Valve
- Brazing Connections
- Mechanical Line Set Connections
- Installing with Indoor Piston
- Install Liquid Line Filter Drier Indoor
- Evacuate Refrigerant Tubing and Indoor Coil
- Deep Vacuum Method
- Final Tubing Check
- Route Ground and Power Wires
- Connect Ground and Power Wires
- Connect Control Wiring
- Final Wiring Check
- Follow these steps to properly start up system:
- 1. After system is evacuated, fully open liquid and vapor service valves.
- 2. Unit is shipped with valve stem(s) front seated (closed) and caps installed. Replace stem caps after system is opened to refrigerant flow (back seated). Replace caps finger–tight and tighten with wrench an additional 1/12 turn.
- 3. Close electrical disconnects to energize system.
- 4. Set room thermostat at desired temperature. Be sure set point is below indoor ambient temperature for cooling mode operation.
- 5. Set room thermostat to HEAT or COOL and fan control to ON or AUTO mode, as desired. Operate unit for 15 minutes. Check system refrigerant charge.
- Sequence of Operation
- Units with Cooling Mode TXV
- 1. Operate unit a minimum of 15 minutes before checking charge.
- 2. Measure liquid service valve pressure by attaching an accurate gage to service port.
- 3. Measure liquid line temperature by attaching an accurate thermistor type or electronic thermometer to liquid line near outdoor coil.
- 4. Refer to unit rating plate for required subcooling temperature.
- 5. Refer to Table 6. Find the point where required subcooling temperature intersects measured liquid service valve pressure.
- 6. To obtain required subcooling temperature at a specific liquid line pressure, add refrigerant if liquid line temperature is higher than indicated or reclaim refrigerant if temperature is lower. Allow a tolerance of 3°F.
- Units with Indoor Pistons
- 1. Operate unit a minimum of 15 minutes before checking charge.
- 2. Measure suction pressure by attaching an accurate gage to suction valve service port.
- 3. Measure suction temperature by attaching an accurate thermistor type or electronic thermometer to suction line at service valve.
- 4. Measure outdoor air dry–bulb temperature with thermometer.
- 5. Measure indoor air (entering indoor coil) wet–bulb temperature with a sling psychrometer.
- 6. Refer to Table 7. Find outdoor temperature and evaporator entering air wet–bulb temperature. At this intersection, note superheat. Where a dash (––) appears on the table, do not attempt to charge system under these conditions or refrigerant ...
- 7. Refer to Table 8. Find superheat temperature located in item 6 and suction pressure. At this intersection, note suction line temperature.
- 8. If unit has a higher suction line temperature than charted temperature, add refrigerant until charted temperature is reached.
- 9. If unit has a lower suction line temperature than charted temperature, reclaim refrigerant until charted temperature is reached.
- 10. When adding refrigerant, charge in liquid form into suction service port using a flow–restricting device.
- 11. If outdoor air temperature or pressure at suction valve changes, charge to new suction line temperature indicated on chart.
- 12. Optimum performance will be achieved when the operating charge produces 5° to 6°F suction superheat at suction service valve with 82°F outdoor ambient and 80°F (26.7°C) dry bulb 67°F (19.4°C) wet bulb indoor temperature (DOE “B” test c...
- Heating Check Chart Procedure
- Table 4 – Additional Subcooling Required
- Table 5 – Required Liquid Line Temperatures °F
- Table 6 – Superheat Charging (Heat Pump Only)
- Table 7 – Required Suction–Line Temperature
- Final Checks
- 1. Ensure that all wiring is routed away from tubing and sheet metal edges to prevent rub–through or wire pinching.
- 2. Ensure that all wiring and tubing is secure in unit before adding panels and covers. Securely fasten all panels and covers.
- 3. Tighten service valve stem caps to 1/12–turn past finger tight.
- 4. Leave Owner’s Manual with owner. Explain system operation and periodic maintenance requirements outlined in manual.
- 5. Fill out Dealer Installation Checklist and place in customer file.
- Care and Maintenance
Installation Instructions
NOTE: Read the entire instruction manual before starting the installation.
SAFETY CONSIDERATIONS
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. Consult a
qualified installer, service agency, or your distributor or branch for
information or assistance. The qualified installer or agency must use
factory–authorized kits or accessories when modifying this product.
Refer to the individual instructions packaged with the kits or accessories
when installing.
Follow all safety codes. Wear safety glasses, protective clothing, and
work gloves. Use quenching cloth for brazing operations. Have fire
extinguisher available. Read these instructions thoroughly and follow all
warnings or cautions included in literature and attached to the unit.
Consult local building codes and current editions of the National
Electrical Code (NEC) NFPA 70. In Canada, refer to current editions of
the Canadian electrical code CSA 22.1.
Recognize safety information. This is the safety–alert symbol . When
you see this symbol on the unit and in instructions or manuals, be alert to
the potential for personal injury.
Understand these signal words; DANGER, WARNING, and CAUTION.
These words are used with the safety–alert symbol. DANGER identifies
the most serious hazards which will result in severe personal injury or
death. WARNING signifies hazards which could result in personal
injury or death. CAUTION is used to identify unsafe practices which
may result in minor personal injury or product and property damage.
NOTE is used to highlight suggestions which will result in enhanced
installation, reliability, or operation.
INSTALLATION RECOMMENDATIONS
In some cases noise in the living area has been traced to gas pulsations
from improper installation of equipment.
1. Locate unit away from windows, patios, decks, etc. where unit
operation sound may disturb customer.
2. Ensure that vapor and liquid tube diameters are appropriate for unit
capacity.
3. Run refrigerant tubes as directly as possible by avoiding
unnecessary turns and bends.
4. Leave some slack between structure and unit to absorb vibration.
5. When passing refrigerant tubes through the wall, seal opening with
RTV or other pliable silicon–based caulk (see Fig. 1).
6. Avoid direct tubing contact with water pipes, duct work, floor
joists, wall studs, floors, and walls.
7. Do not suspend refrigerant tubing from joists and studs with a rigid
wire or strap which comes in direct contact with tubing (see Fig. 1).
8. Ensure that tubing insulation is pliable and completely surrounds
vapor tube.
9. When necessary, use hanger straps which are 1 in. wide and
conform to shape of tubing insulation (see Fig. 1).
10. Isolate hanger straps from insulation by using metal sleeves bent to
conform to shape of insulation.
A07588
Fig. 1 – Connecting Tubing Installation
When outdoor unit is connected to factory–approved indoor unit,
outdoor unit contains system refrigerant charge for operation with AHRI
rated indoor unit when connected by 15 ft. (4.57 m) of field–supplied or
factory accessory tubing. For proper unit operation, check refrigerant
charge using charging information located on control box cover and/or
in the Check Charge section of this instruction.
IMPORTANT: Maximum liquid–line size is 3/8–in. OD for all
residential applications including long line.
IMPORTANT: Always install the factory–supplied liquid–line filter
drier. Obtain replacement filter driers from your distributor or branch.
215S
Single Stage Heat Pumps
with Puron
®
Refrigerant
1-1/2 To 5 Nominal Tons
WARNING
!
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. Lock out and tag switch with a suitable warning
label.
WARNING
!
EXPLOSION HAZARD
Failure to follow this warning could result in
death, serious personal injury, and/or property
damage.
Never use air or gases containing oxygen for
leak testing or operating refrigerant
compressors. Pressurized mixtures of air or
gases containing oxygen can lead to an
explosion.
INSULATION
SUCTION TUBE
LIQUID TUBE
OUTDOOR WALL INDOOR WALL
LIQUID TUBE
SUCTION TUBE
INSULATION
CAULK
HANGER STRAP
(AROUND SUCTION
TUBE ONLY)
JOIST
1” (25.4 mm)
MIN
THROUGH THE WALL
SUSPENSION