Manuale d’uso / di manutenzione del prodotto 38HDR018-060 del fabbricante Carrier
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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.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Carrier 38HDR018-060 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Carrier 38HDR018-060 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Carrier 38HDR018-060 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Carrier 38HDR018-060 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Carrier 38HDR018-060, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Carrier 38HDR018-060.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Carrier 38HDR018-060. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Carrier 38HDR018-060 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
