Table of Contents
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7.5 TON MODEL
[26.38 kW]
This product is shipped with a nitrogen holding charge that
must be vented prior to evacuation and charging and is
identified by a tag on the unit shipping carton and on one
of the unit service valves.
This product is only intended for Commercial Condensing
Unit change-out in existing R-22 systems with a matched
indoor unit.
This product must be charged with R-22 refrigerant meeting
AHRI 700 purity standard.
C
OMMERCIAL
TZAA- HIGH EFFICIENCY SERIES
S
C
PLIT
ONDENSING
NOMINAL SIZES 7.5 TON [26.38 kW]
U
NIT
FORM NO. ATZ-207 REV. 1
Supersedes Form No. ATZ-207
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Table of Contents
Related Manuals for Thermal Zone TZAA Series
Summary of Contents for Thermal Zone TZAA Series
- Page 1 OMMERCIAL PLIT ONDENSING FORM NO. ATZ-207 REV. 1 Supersedes Form No. ATZ-207 TZAA- HIGH EFFICIENCY SERIES NOMINAL SIZES 7.5 TON [26.38 kW] 7.5 TON MODEL [26.38 kW] This product is shipped with a nitrogen holding charge that must be vented prior to evacuation and charging and is identified by a tag on the unit shipping carton and on one of the unit service valves.
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Page 2: Table Of Contents
TABLE OF CONTENTS Unit Features & Benefits ................3 Model Number Designation ................4 Selection Procedure ..................5 Unit Dimensions ..................6 Performance Data ..................7 Electrical Data ..................8 Cooling Performance Data ................9 Typical Installation ................10-11 Accessories ....................12 Wiring Schematic ..................13 Sequence of Operation ................14 Sample Specifications ................14 Limited Warranty ..................16... -
Page 3: Unit Features & Benefits
UNIT FEATURES & BENEFITS—TZAA- SERIES These quality features are included in the Thermal Zone Package Air Conditioner ® STANDARD FEATURES INCLUDE: • CABINET—Galvanized steel with powder coat paint finish. • LOW AMBIENT CONTROL—A pressure sensitive fan cycling The powder coat paint finish is high gloss, durable and control allows operation of units down to 0°F [-18°C]. -
Page 4: Model Number Designation
TZ A A – 090 C A 757 Option Design Variation A-Standard Electrical Designation C-208-230-3-60 D-460-3-60 Nominal Tonnage 090 = 7.5 Tons [26.38 kW] A = R-22 (Dry) A = Air Conditioner Thermal Zone ® [ ] Designates Metric Conversions... -
Page 5: Selection Procedure
SELECTION PROCEDURE—TZAA- SERIES SELECTION PROCEDURE— MATCHED SYSTEMS Example 1: Determine the Net System Performance of Condensing Unit TZAA-090 with TZHGG-090 at 3360 CFM [1586 L/s] @ .30" [.07 kPa] external static pressure, 80°F [27°C] DB/67°F [19°C] WB entering indoor air and 95°F [35°C] DB outdoor ambient. -
Page 6: Unit Dimensions
UNIT DIMENSIONS—TZAA- SERIES UNIT DIMENSIONS & WEIGHTS 7.5 TON [26.38 kW] CORNER WEIGHTS (LBS.) [kg] Corner Weights, Lbs. [kg] TOTAL WEIGHT MODEL LBS. [kg] TZAA-090 318 [144] 53 [24.0] 84 [38.1] 71 [32.2] 110 [49.9] [ ] Designates Metric Conversions... -
Page 7: Performance Data
PERFORMANCE DATA—TZAA- SERIES PERFORMANCE DATA @ AHRI STANDARD CONDITIONS—COOLING: TZAA- 80°F [26.5°C] DB/67°F [19.5°C] WB INDOOR AIR MODEL NUMBERS 95°F [35°C] DB OUTDOOR AIR SOUND INDOOR RATING OUTDOOR INDOOR TOTAL CFM [L/s] UNIT COIL AND/OR CAPACITY SENSIBLE LATENT TZAA- AIR HANDLER BTU/H [kW] BTU/H [kW] BTU/H [kW]... -
Page 8: Electrical Data
ELECTRICAL DATA—TZAA- SERIES... -
Page 9: Cooling Performance Data
SYSTEMS PERFORMANCE—TZAA- SERIES COOLING PERFORMANCE DATA WITH CONDENSING TZAA-090 TZHGG-090Z COOLING UNIT COIL ENTERING INDOOR AIR @ 80°F [26.7°C] dbE ➀ 71°F [21.7°C] 67°F [19.4°C] 63°F [17.2°C] CFM [L/s] 3360 [1586] 2800 [1322] 2240 [1057] 3360 [1586] 2800 [1322] 2240 [1057] 3360 [1586] 2800 [1322] 2240 [1057]... -
Page 10: Typical Installation
TYPICAL INSTALLATIONS—TZAA- SERIES TYPICAL REFRIGERANT PIPING RECOMMENDATIONS General Notes: 1. Vertical risers not to exceed 60 feet [18.29 m]. 2. Locate the condensing unit and evaporator(s) as close together as possible to minimize piping runs. 3. Condensing units are shipped with a nitrogen holding charge. Evacuate condensing unit before charging with refrigerant. RECOMMENDED VAPOR AND LIQUID LINE EQUIVALENT LENGTH (FT.) [m] OF STRAIGHT TYPE “L”... - Page 11 TYPICAL INSTALLATIONS—TZAA- SERIES TYPICAL REFRIGERANT PIPING RECOMMENDATIONS (cont.) REQUIRED OZS. R-410A CHARGE PER FT. [m] OF TUBING BASIC SYSTEM CHARGE* TUBE SIZE LIQUID VAPOR UNIT BASIC SYSTEM O.D. (IN.) [mm] (OZ.) [g] (OZ). [g] MODEL CHARGE, OZ, [g]* [12.7] 1.20 [34.0] —...
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Page 12: Accessories
ACCESSORIES—TZAA- SERIES CONDENSING UNIT ACCESSORIES ACCESSORY DESCRIPTION MODEL NUMBER Anti-Short Cycle Timer Kit RXAT-A01 Sight Glass RXAG-A048 Liquid Line Solenoid Valve* RXAV-CD078 *May be used as isolation valve only. Do not use as a pump-down solenoid. Refer to system wiring diagram. -
Page 13: Wiring Schematic
WIRING SCHEMATICS—TZAA- SERIES TYPICAL WIRING SCHEMATIC... -
Page 14: Sequence Of Operation
(TDC) has been supplied, the contactor coil (CC) is de-energized. will remain de-energized for up to five (5) minutes. GUIDE SPECIFICATIONS Furnish and install as shown on the drawing Thermal Zone ® Model unit. Airflow shall be drawn through design providing uniform air _______________ air cooled condensing unit suitable for outdoor distribution across the coil surface. - Page 15 NOTES...
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Page 16: Limited Warranty
GENERAL TERMS OF LIMITED WARRANTY* Thermal Zone ® will furnish a replacement for any part of this Compressor ............Five (5) Years product which fails in normal use and service within the Any Other Part..........One (1) Year applicable periods stated, in accordance with the terms of *For Complete Details of the Limited Warranty, Including Applicable Terms the limited warranty.
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