BryantメーカーGAS-FIRED INDUCED-COUSTION FURNACES 373LAVの使用説明書/サービス説明書
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NOTE: Read the entire instruction manual before performing any service or maintenance. This symbol → indicates a change since the last issue. These procedures are for size 44,000 through 154,000 Btuh input units. Index Page SAFETY CONSIDERATIONS ...
WARNING: The ability to properly perform mainte- nance on this equipment requires certain expertise, me- chanical skills, tools, and equipment. If you do not possess these, do not attempt to perform any maintenance on this equipment other than those procedures recom- mended in the User’s Manual.
1. Downflow/Horizontal Each furnace requires 2 filters which are installed in the return-air duct. (See Fig. 4 and 5.) To remove filters for cleaning or replacement, proceed as follows: a. Disconnect electrical power before removing blower access door.
9. If a greasy residue is present on blower wheel, remove wheel from the blower housing and wash it with an appropriate degreaser. To remove wheel: a. Mark blower wheel location on shaft before disassembly to ensure proper reassembly. b. Loosen setscrew holding blower wheel on motor shaft.
WARNING: Blower access door switch opens 115-v power to furnace control. No component operation can occur. Caution must be taken when manually closing this switch for service purposes. Failure to follow this warn- ing could result in electrical shock, personal injury, or death.
(8.) Reinstall cell inlet plates and burner assembly. Care must be exercised to center burners in cell openings. 11. Clean flame sensor with fine steelwool. 12. Remove old sealant from center panel and collector box flange and apply new sealant to collector box flange and reinstall on center panel, making sure all 8 screws are secure.
c. Remove control access door. d. BRIEFLY remove either wire from the main limit switch until LED goes out, then reconnect it. NOTE: If wire to main limit is disconnected longer than 4 sec, main blower starts, and retrieval request is ignored. 2. When above items have been completed, the following will occur: a.
Fig. 11—Furnace Control A99255 HUMIDIFIER TERMINAL (24-V AC 0.5 AMP MAX) LED OPERA TION & DIAGNOSTIC LIGHT HARNESS CONNECT OR 24-V TRANSFORMER SEC-2 SP ARE-1 SP ARE-2 EAC-1 EAC-ELECTR ONIC AIR CLEANER TERMINALS (115-V AC 1.
→ Fig. 12—Furnace Wiring Diagram A00304 PCB BLOWER OFF DELAY SELECTION CHART 90 SEC 135 SEC 180 SEC 225 SEC GVR H I/L O RELA Y SEC-1 SEC-2 PL1 3 2 1 6 5 4 9 87 LED TEST/TWIN BLOWER OFF DELAY G R Y.
Fig. 13—Service Label A96263 SERVICE 11 NO PREVIOUS CODE - Stored sta tus codes are er ased when power (115 V or 24V) to control is interrupted or 48 hours after ea ch fault is cl eared. 12 BLOWER ON AFTER POWER UP ( 115V or 24V) - Blower ru ns for 90 seconds, if unit is power ed up duri ng a call for hea t (R-W closed).
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Is circuit breaker closed? Close door switch and go to start. Is red LED status light on? Is door switch closed? Is red LED status light blinking rapidly without a pause? Is there 1 15v going to switch? Replace door switch. Replace control center . Replace transformer .
11 NO PREVIOUS F AUL T - Faults are erased after 48 hrs or whenever power (1 15v or 24v) is interrupted. Run system through a heating or cooling cycle to check system. 12 BLO WER ON AFTER PO WER UP (115V OR 24V) - Normal operation. Blower will run for 90 sec when furnace power is interrupted during a call for heat, R-W closed.
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A94328 SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Maintenanc.
デバイスBryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV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：
Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV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Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV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。Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV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。Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV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。
Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV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Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV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、Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV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Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV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。
