American Standard TWA07243A Odyssey with Symbio Heat Pumps Three Phase Instruction Manual

American Standard TWA07243A Odyssey with Symbio Heat Pumps Three Phase

Important Information

• Symbio™ controls (standard)
  • Scroll compressor (TWA072-120A)
  • Scroll compressors (TWA072-240D) with independent refrigerant circuits
• Single point power
• Compressor motor overload protection
• Compressor discharge temperature limit switch
• Control transformer
• High and low pressure cut-out switches
• Demand Defrost Control
• Internal pressure relief valves
• Electrical phase reversal protection
• Holding charge (Dry Nitrogen)
• Copper tube, aluminum plate fin coils
• Low ambient cooling to 50°F as shipped
• Low ambient cooling to 0°F with accessory head pressure control
• Mounting/lifting rails under base
• UL listed
• 5-year compressor warranty
• 1-year limited parts warranty
• Optional Extended Warranties

Model Number Description — Heat Pump Condenser

• Digit 1–3 — Unit Function TWA = Split System Heat Pump

• Digit 4–6 — Tonnage
  072 = 6 Tons (60Hz)
  090 = 7.5 Tons (60Hz)
  120 = 10 Tons (60Hz)
  180 = 15 Tons (60Hz)
  240 = 20 Tons (60Hz)

• Digit 7 — Refrigerant
  4 = R-410A

• Digit 8 — Voltage
  3 = 208-230VAC – 3 PH (60Hz) 4 = 460VAC – 3 PH (60Hz)
  W = 575VAC – 3 PH (60Hz)
  K = 380VAC – 3 PH (60Hz)

• Digit 9 — Refrigeration Circuit/Stage
  A = 1 Compressor/1 Line/1 Stage (Single) D = 2 Compressors/2 Line/2 Stage (Duals)

• Digit 10 — Major Design Sequence
  A = Current Design Sequence

• Digit 11 — Minor Design Sequence
  A = Current Design Sequence

• Digit 12–13 — Service Digits

• Digit 14 — Efficiency Generation
  B = Generation B

• Digit 15 — Controls
  S = Symbio™

• Digit 16 — None
  0 = Not Used

• Digit 17 — Coil Protection
  1 = Standard Coil w/ Hail Guard
  3 = Black Epoxy Pre-Coated Condenser Coil with Hail
  Guard (FIN/TUBE)

• Digit 18-20 — None
  0 = Not Used

• Digit 21 — Communications Options
  0 = No Option
  1 = BACnet® BAS Communications
  2 = LonTalk® Communications Interface (LCI)

• Digit 22-40 — None
  0 = Not Used

Single Compressor with Single Refrigerant Circuits

LSH-1-A — TWA Split System Heat Pumps
R-410 Refrigerant

Dual Compressors with Two Sets of Refrigerant Circuits

LSH-1-B — TWA Split System Heat Pumps
R-410 RefrigerantSound rating shown is tested in accordance with ARI Standard 270 or 370.

• Information subject to change. Please confirm with current Product Data/Service Facts for current factory production.
  For complete equipment / combination selections, installation instructions and warranty information, please refer to Product Data/Ratings and/or Installers Guides and Limited Warranty Handbooks.

TWA Accessories

LSH-2-A

Low Ambient — On/Off Fan Control (External mount, small cabinets) 1 2 3
BAYLOAMS10 (External Mount, small cabinets)4| (all voltages) TWA072A, TWA090A
BAYLOAMS20 (Internal mount, large cabinets)| (all voltages) TWA120, TWA180, TWA240
Transducer Kit for Head Pressure Control (BAYLOAM335, 336, 435, 436, W36)
BAYLOTR0015| TWA072D, TWA090D, TWA120D
LonTalk Communications Interface 6|
BAYLTCI005*| All Models

1. Cycles fan on/off (no modulating).
2. When BAYLOAM is used, the Evaporator Defrost Control (EDC) must be disabled in the Symbio 700 controller configuration.
3. Kit mounts external to the outdoor unit and operates by sensing ambient and liquid line temperatures.
4. BAYLOTR001 required when modulating BAYLOAMS10 kits used with units that have 2 compressors (dual circuit) and 1 condenser fan.
5. BAYLOTR001 required when modulating BAYLOAM kits used with units that have 2 compressors (dual circuit) and 1 condenser fan.
6. Field Installed LonTalk interface requires installation of Symbio control board with Advanced Diagnostic (not included).

Controls

LSH-2-B

For complete equipment / combination selections, installation instructions and warranty information, please refer to Product Data/Ratings and/or Installers Guides and Limited Warranty Handbooks.

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