Greenheck FanメーカーERH-55の使用説明書/サービス説明書
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**W ARNING** DISCONNECT AND SECURE TO THE "OFF" POSITION ALL ELECTRICAL POWER TO THE UNITS PRIOR TO INSPECTION OR SERVICING. F AILURE TO COMPL Y WITH THIS SAFETY PRECAUTION COULD RESUL T IN SERIOUS INJUR Y OR DEA TH. **IMPORT ANT** ALL F ACTORY PROVIDED LIFTING LUGS MUST BE USED WHEN LIFTING THE UNITS.
GENERAL Greenheck Energy Recovery units with Te mpering are thor oughly inspected and test run at the factory . However , damage may occur during handling and shipping. Consequently , it is important to inspect the unit for visible and concealed damage before beginning installation.
3 INST ALLA TION The system design and installation should follow accepted industry practice, such as described in the ASHRAE Handbook. Adequate space should be left around the unit for piping coils and drains, filter replacement, and maintenance.
4 R o t a t i o n Length of Straight Duct GOOD R o t a t i o n POOR FIGURE 4 DUCT WORK CONNECTIONS Examples of good and poor fan-to-duct connections are shown below (See FIGURE 4). Airflow out of the fan should be directed straight or curve the same dir ection as the fan wheel rotates.
5 Main Disconnect On Off Exhaust Hood Control Center Intake Hood INST ALLA TION (continued) WEA THERHOODS Supply weatherhood will be factory mounted. The exhaust weatherhood is shipped separately as a kit with its own instructions. EXHAUST DAMPERS Backdraft dampers for exhaust discharge are mounted in the unit.
Wheel Cassette 2 in. filters 2 in. filters Exhaust Air Intake Electrical Box Access Panel Access Panel Access Panel Access Panel Access Panel Cassette Slides Out 52 in. Clearance with IG Heater 0 in. Clearance without IG Heater Exhaust Hood Outdoor Air Hood IG Heater *48 in.
1. Piping should be in accordance with accepted industry standards. Pipework should be supported independently of the coils. W ater connections are male NPT iron pipe. When installing couplings, do not apply undue stress to the connection extending through the unit.
8 ELECTRIC HEA TER APPLICA TION/OPERA TION Factory installed electric heaters can be provided for pr eheat and/or post-heat (see FIGURE 11). An electric preheater warms the outdoor air prior to the energy r ecovery wheel to prevent fr osting on the wheel.
FROST CONTROL APPLICA TION/OPERA TION DIRTY FIL TER SWITCH SETUP When outdoor air temperatures ar e extremely cold, moistur e condensation and frosting on the energy recovery wheel is possible. Frost contr ol is an optional feature that will pr event wheel frosting.
The energy recovery wheel may be de-energized for the purpose of pr oviding economizer (free cooling) operation. This can be achieved with a signal from a T emperature or Enthalpy sensor mounted in the supply air inlet compartment (see FIGURE 13).
11 GENERAL Check all fasteners and set screws for tightness. This is especially important for bearings and fan wheels. Also, if dampers are not motorized, check that they open and close without binding. F AN WHEEL ROT A TION Hand rotate the blower to ensur e that the wheel is not rubbing against the scroll.
12 ENERGY RECOVERY WHEEL CAUTION: See **W ARNING** on page 1 and 11 For the ERH-20 and ERH-45, open the access door marked "Energy Wheel Cassette Access". UNPLUG the wheel drive motor and remove the metal spacer . Then pull the cassette out halfway as seen in FIGURE 17.
13 ROUTINE MAINTENANCE CAUTION: See **W ARNING** on Page 1 and 11 Once the unit has been put into operation, a periodic maintenance program should be set up to pr eserve the r eliability and performance.
14 EXTERNAL FIL TER MAINTENANCE Aluminum mesh 2 in. filters are located in the supply weatherhood (if the weatherhood option was purchased). Filters should be checked and cleaned on a regular basis for best ef ficiency . The frequency of cleaning depends upon the cleanliness of the incoming air .
15 WA TER COIL MAINTENANCE CAUTION: See **W ARNING** on Page 1 and 11 FIL TERS Filters upstream of the coil should be checked r egularly . If the filters ar e dirty , they should be cleaned or r eplaced. It is important that the coils stay clean to maintain desir ed airflow .
FIGURE 20 For the ERH-20 and ERH-45, open the access door marked "Energy Wheel Cassette Access" (FIGURE 20). UNPLUG the wheel drive motor and remove the metal spacer . Then pull the cassette out halfway (FIGURE 21). The energy recovery wheel cassettes for model ERH-55 and ERH-90 do not slide out due to their size and weight.
CLEANING ENERGY RECOVERY WHEEL SEGMENTS If the wheel appears excessively dirty , it should be cleaned to ensur e maximum operating efficiency . Only excessive buildup of foreign material needs to be r emoved. DISCOLORA TION AND ST AINING OF ENERGY RECOVERY WHEEL DOES NOT AFFECT ITS PERFORMANCE.
PA R TS LIST 1 2 3 4 8 5 6 7 7 9 Model ERH (shown with indirect gas heater) 10 18 1. Supply blower - Forward curved fan - Adjustable motor mount for belt tensioning - Adjustable sheaves for speed control 2. Vibrations isolators (quantity 4 per blower) - Neoprene 3.
* Always provide the unit model and serial number when requesting parts or service information. * Always check motor amps and compare to nameplate rating.
IOM ERH FS Rev . 1 January 2002 W arranty Greenheck warrants this equipment to be fr ee from defects in material and workmanship for a period of one year from the purchase date. The energy r ecovery wheel is warranted to be free from defects in material and workmanship for a period of five years from the pur chase date.
デバイスGreenheck Fan ERH-55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：
Greenheck Fan ERH-55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Greenheck Fan ERH-55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。Greenheck Fan ERH-55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。Greenheck Fan ERH-55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。
Greenheck Fan ERH-55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Greenheck Fan ERH-55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、Greenheck Fan ERH-55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Greenheck Fan ERH-55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。
