Carrierメーカー38HDF018-036の使用説明書/サービス説明書
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Manufa cturer res erves the right to discon tinue, or chang e at any time , specificat ions or designs witho ut notic e and wit hout inc urring obligati ons.
2 (FIELD PROVIDED AND INST ALLED) Fig. 2 — 38HDF ,HDR Unit Dimensions NOTE: Dimensions shown in feet-inches. Dimensions in ( ) are m illimeters. UNIT MODELS CHASSIS SIZE (Referen ce) ABC D E FG H J .
3 Step 2 — Rig and Mount Unit MOUNTING ON GROUND — M ount unit on a solid, level concrete pad. Position unit so water or ice from roof does not fall directly ont o unit. Acce ssory stacking ki ts can be used when units are to be stac ked. See i nstallati on instruct ions provided with the accessory kit.
4 Only use factory specified liquid-line filter driers with rated working pressures less than 600 psig. NOTE: Do not install a suction-line filter dri er in liquid line. MAKE PIPING SWEA T CONNECTIONS — Remove plasti c caps from liquid a nd suction servi ce valves.
5 Table 1B — 38HDR 018-060 P hysical D ata LEGEND *Unit shipped with full factory charge. See ARI (Air Conditioning and Refrigeration Institute) capacity tab le for proper charge and piston for each f an coil type. †V alve connection size is 7 / 8 inch.
6 Step 4 — Make Electrical Connections CO N TR O L CI R C UI T W IR I N G — Control voltage i s 24 v (40 va minimum). See Fig. 5 and unit label diagram for fi eld- supplied wiring details. Route control wire through opening in unit side panel to connection in unit control box.
7 Table 2 — 38HDF Electric al Data LEGEND *P er missible limits of the v oltage range at which unit will operate satisf actorily . NO TES: 1. Control circuit is 24 v on all units and requires an exter nal power source. 2. All m otors and compres sors contain inter nal overload protection.
8 Table 3 — 38HDR E lectrical Data LEGEND *P er missible limits of the v oltage range at which unit will operate satisf actorily . NO TES: 1. Control circuit is 24 v on all units and requires an exter nal power source. 2. All m otors and compress ors contain inter nal overload protection.
9 LEGEND NO TES : 1. Com pressor and fan motors are t hermally protected. 2. W ire in accordance with National Electrical Code (NEC) and local codes . Replace any original wires with 90° C wire or its equiv alent. 3. Us e minimum 60° C wire f or field power wiring.
10 LEGEND NO TES: 1. Compr essor and f an motors are thermally protected. 2. W ire in accordance with National Electric al Code (NEC) and local co des. Replace any original wires with 90° C wire or its equi valent. 3. The CLO locks out the COMP to prev ent shor t cycling on COMP overloads and safet y devi ces.
11 ST AR T -UP Preliminary Chec ks 1. Check that all internal wiring connections are tight and that all barri ers, covers, and panels ar e in place. 2. Field electrical power source must agree with unit name - plate rating. 3. All service val ves must be open.
12 T o troubleshoot: 1. Apply voltmeter acros s crankcase heat er leads to see if heater voltage i s on. Do not touch heater . Carefully feel area around crankcas e heater; if warm, c rankcase heater is functioning. 2. W ith power off and heater leads disconne cted, check across leads with ohmmet er .
13 Table 4 — Pres sure vs. Tempera ture Cha rt — Pu ron® Refrig erant ( R-410A) Subcooling Met hod — For 38HDR units only , the sub- cooling method is used to check and adjust charge during the cooling season. Refer to T able 5 and the fol lowing procedure: NOTE: For use with residential fan coils and the 40QA060 under ceiling unit only .
14 Table 5 — Subcooling Charging Table Compressor Lock out Switch — The 38HDR units are provided with a compressor lockout protective device. If the compressor shuts down due to any safety device, a current loop monitoring the compressor current senses no c urrent flow .
15 Fig. 9 — T rouble shooting the Cooling Cycle.
Manufa cturer reser ves the right to discon tinue, or change at any time, specificat ions or designs w ithout not ice and without incurrin g obligations.
デバイスCarrier 38HDF018-036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：
Carrier 38HDF018-036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Carrier 38HDF018-036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。Carrier 38HDF018-036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。Carrier 38HDF018-036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。
Carrier 38HDF018-036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Carrier 38HDF018-036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、Carrier 38HDF018-036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Carrier 38HDF018-036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。
