AT&TメーカーD-10,000の使用説明書/サービス説明書
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107 W. Main Street Worthington, PA 16262 Phone: 724.297.3416 Fax: 724.297.5189 h t t p :/ / www.a ir ta k. c o m OPERATING INSTRUCTIONS Refrigerated Air Dryers Models D-320 through D-10,000 4-2002.
2 Contents A. INTRODUCTION B. RECEIVING C. LOCATION D. FOUNDATION E. PIPING F. ELECTRICAL G. COMPRESSED AIR CIRCUIT 1. Air to Air Heat Exchanger 2. Air to Refrigerant Heat Exchanger (Evaporator) 3. Drain Traps H. REFRIGERANT CIRCUIT 1. Refrigerant Compressor 2.
3 A. INTRODUCTION AIR/TAK Refrigerated Compressed Air Dryers are of the hi gh-efficiency type, designed to effectively remove moisture from compressed air by means of a refrigerat ion process. The compressed air pressure dewpoint is reduced to 38°F and then reheated to prevent in-plant air lines from sweating.
4 In keeping with good compressed air piping design, the air dryer should be installed on the downstream side of the air receiver and aftercooler. An AIR/TAK prefilter(s) for oil and dirt removal in stalled at the inlet of the dryer is recommended.
5 G. COMPRESSED AIR CIRCUIT 1. Air-to-Air Heat Exchanger: This unique high-efficiency heat exchanger is of a finned shell and tube design. The tubes are of high quality copper and are enhanced by outer fins of corrugated aluminum .
6 The circuiting within the evaporator is serpent ined in such a manner as to guarantee a completely flooded evaporator. Each evaporator is designed to insure adequat e refrigerant velocity to eliminate the problem of oil return to the crankcase. 4. Expansion Valves: The thermostatic expansion valve (TXV) is used on Model D-320-A, and larger.
7 10. Oil Sightglass: The oil sightglass is found on the side of the cr ankcase on accessible scroll compressors to provide a visual means of checking the oil level. The oil must be checked only while the compressor is in operation. During compressor operation the oil sight glass should be approximately 1/2 full.
8 I. START-UP After the installation of your air dryer at a su itable location, the following checks should be made: a) Bypass piping installed and valves set to bypass the dryer.
9 J. DESIGN CONDITIONS Each dryer is shipped complete and ready for installation. Every dryer is tested and preset at the factory for optimum service at the design conditions. The following ar e the standard design conditions for a refrigerated dryer operating at 60 HZ: 38°F (3.
10 Cooling Water Requirements MODEL # HEAT TO COOLING WATER KW INPUT (4) COOLING WATER AMBIENT (1) GPM (2) GPM (3) D-400-W 23682 1780 4.7 1.9 1.95 D-500-W 33894 2550 6.8 2.7 2.6 D-600-W 37250 3650 7.5 3.0 2.92 D-800-W 52859 3980 10.6 4.3 4.22 D-1000-W 66150 5360 13.
11 SYMPTOMS PROBABLE CAUSE REMEDY Dryer not running. a. Disconnect open. a. Close disconnect. High temperature light off, analyzer gauge normal. b. Fuse blown. b. Replace fuse. c. Wiring, improper or broken. c. Check wiring diagram or repair. d. Control transformer d.
12 SYMPTOMS PROBABLE CAUSE REMEDY g. Defective refrigerant g. Repair or replace compressor valves. compressor. h. Suction pressure too high. h. Adjust hot gas bypass valve. Dryer running. a. Leaky refrigerant circuitry. a. Locate and repair. High temperature light on, analyzer gauge pressure low.
13 High pressure drop across a. Excess flow. a. Dryer undersized. dryer inlet and outlet. Replace with larger dryer. b. Low air pressure. b. Dryer undersized. Replace with larger dryer. c. Partially frozen. c. Shut dryer off until ice melts. Power light “ON” but dryer a.
デバイスAT&T D-10,000の購入後に(又は購入する前であっても)重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります:
AT&T D-10,000をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはAT&T D-10,000の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。AT&T D-10,000の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。AT&T D-10,000で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
AT&T D-10,000を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はAT&T D-10,000の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、AT&T D-10,000に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちAT&T D-10,000デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。