Carrierメーカー48HCの使用説明書/サービス説明書
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48HC Single P ackag e Rooftop Gas Heating /Elec tric Cool ing U nit with Pur on r (R - - - 410A) Refrigera nt Siz es: 17, 20, 24, 28 Installation Instructions NOTE : Read the entire instru ction manual before star ting the ins tallation T ABLE OF CONTENTS SAFET Y CONSIDE RA TIONS 2 .
2 Field Connec tions 39 .......................... Sp ace T emper ature (S PT) S enso rs 40 ............ Indoor Air Quality (CO 2 )S e n s o r 4 0 ............. Outdoor Air Qua lity Sens or 41 ................. Space Relativ e Humidity S ensor o r Humidis tat 41 .
3 C10896 Fig. 1 - - Unit Dimensional Drawing – 17 Size Unit 48HC.
4 C10897 Fig. 1 - - Unit Dimensional Drawing – 17 Siz e Unit (cont.) 48HC.
5 C10892 Fig. 2 - - Unit Dimensional Drawing – 20 and 24 Size Units 48HC.
6 C10893 Fig. 2 - - Unit Dimensional Drawing – 20 and 24 Size Units (cont.) 48HC.
7 C10900 Fig. 3 - - Unit Dimensional Drawing – 28 Size Unit 48HC.
8 C10901 Fig. 3 - - Unit Dimensional Drawing – 28 Siz e Unit (cont.) 48HC.
9 INST ALLA TION Jobsite Survey Complete th e follow ing check s befo re installatio n. 1. Consult local buildi ng codes a nd the NEC (National Electrical Code) AN SI/N FP A 70 for special installa- tion requ irements. 2. Determ ine unit loc ation (from proje ct plans) or selec t unit loca tion.
10 Ste p 2 — Plan for Se quence o f Unit Inst allati on The support me thod used for thi s unit w il l dict ate different sequence s for the steps of unit insta llat ion. For e xample , on curb- - mounted units, some acce sso ries must be installed on the uni t before th e unit is p laced on the curb.
11 C10954 Fig. 6 - - Roof Curb D etai ls – 17 Size Unit 48HC.
12 C10955 Fig. 7 - - Roof Curb D etai ls – 20 and 24 S iz e Units 48HC.
13 C10956 Fig. 8 - - Roof Curb D etai ls – 28 Size Unit 48HC.
14 A-B 0.25” (6) B-C 0.5” (12) A-C 0.5” (12) MAXIMUM ALL OWABLE DIFFERENCE IN. (MM) A B C C10628 Fig. 9 - - Unit L eveling T olerances Ste p 5 — Field Fabric ate D uctw ork Cabinet re turn-ai r static pressure (a negat ive condition) shall not exceed 0.
15 P o s i t i o n i n go nC u r b— Po sition unit on ro of curb s o that the followin g clearances are maintained : 1 / 4 in. (6 mm) clearance betw een the ro of curb a nd the ba se ra il inside t he right and le ft, 1 / 2 in. (12 mm) clearance betw een the roof cu rb and the bas e rail insid e the fron t and back .
16 T o ass emble the outside air hood: 1. Remove hood top panel from shipping position on unit end. 2. Install four angles to the upper end pane l using the screws provided. 3. Apply seal strip to m ating fl anges on the side plat es of the hood (see Fig.
17 T able 2 – T ypical 3 / 4 - - i n NPT Fi el d Suppli ed P i ping P ar ts Item Qty CPN Descript ion 1 1 C A15RA201 90 Deg Street Elbow 2 1 C A01CA226 5 Inch Long Ni pple 3 1 C A85RA201 Ground - - .
18 Fa cto ry - - Opti on Thr u - - Base Connec ti ons — Electrica l Conn ection s: Knockouts a re loca ted in the control box area . Rem ove t he appropria te size knoc kout for high vol tage conne ction. Use the fie ld supplied connector depe nding on wiring or c onduit being utilized.
19 Ste p 1 1 — Inst all Exte rna l Condens ate T ra p and Line The uni t has one 3 / 4 -in. c ondensate dra in connec tion on the end of the condensat e pan (see Fig. 21). See Figs. 1, 2 and 3, item “E”, in the view labeled “BACK (HORIZ ONT AL DISC HARGE) ” fo r the l oca t ion o f the condensat e drain c onnecti on.
20 FIRE H AZARD Failure t o follow this warning c ould result in intermittent op eration or un satis factory perfo rmance. Do not connect al uminum wire between disconnect switch and a ir condit ioning unit . Use only copper w i r e .( S e eF i g .2 4 .
21 T wo types of convenie nce out lets are of fere d on 48HC models: Non - - unit powered a nd unit - - powere d. Both types provide a 125 - - volt GFCI (ground - - faul t circui t - - int errupte r) duplex recept acle rated at 15 - - A behind a hinged access cover , loc ated on the corne r panel of the unit.
22 2.0 50HE501288 NOTICE/AVIS Convenience Outlet Utilization Maximum Intermittent Use 15 - Amps Maximum Continuous Use 8 - Amps Observe a 50% limit on the circuit Loading above 8 - Amps Utilisation de.
23 C W2 G W1 R Y1 T ypical Thermostat Corrections O/B/ Y2 (see Note) Note: T ypical multi-function marking. Follow manufacturer’s configuration instructions to select Y2.
24 Humidi- - Mi Zer R Con tr ol Conne ct ions Humi di - - Mi Zer – Spac e RH Contro ll er — NOTE : The Humidi- - MiZer is a factory in stalled optio n. The Humidi- - MiZer dehumidif ication sys tem requir es a field- - supplied an d - - ins talled space relative hu midity contro l device.
25 C11139 Fig. 34 - - T ypical H umidi- - Mi Zer R Adap tive Deh umid ificatio n Sy stem Hum idis tat W iring Rc Rh W1 G Y2 C O/W2/B Y1 OAT RRS SRTN HUM D1 D2 V+ Vg X* C G W2 W1 Y2 Y1 R EDGE Pro THERMIDISTAT Unit CTB THERMOSTAT *Connection not required.
26 PremierLi nk t (Factory - - O pti on) C08199 Fig. 36 - - Premier Link Contr olle r The Premier Link contro ller (see Fig . 36) is compatible with Car rier Comfo rt Netwo rk r (C CN) devices .
27 C11140 Fig. 38 - - PremierL ink W iring Sch ematic 48HC.
28 C11141 Fig. 39 - - PremierL ink W iring Sch ematic wit h Humid i - - MiZer R 48HC.
29 Supply Air T em per ature (SA T) Se nsor — On FIOP- - e quipped 48HC unit, the unit is supplied with a supply- - a ir tem perature (SA T ) sensor (33ZCSENSA T). This sensor is a tubula r probe type, approx 6- - inc hes (12.7 mm) in leng th. It is a n ominal 10- - k ohm thermis tor .
30 T abl e 5 – Space Se nsor Mo de TB3 TERMINA L FIELD C ONNEC TION INPU T SIG NAL 1 T 5 5 --- S E N / T 5 6 --- S E N An alog (10k th ermi stor) 2 RMTOC C Discrete, 24VAC 3 T 5 5 --- S E N / T 5 6 .
31 Spac e Se nsors — The Premi erLi nk controll er is fact ory- - shipped c onfigured for Space Sensor Mode. A Carrier T - - 55 or T- - 56 s pac e sensor must be us ed. T - - 55 space te mperat ure s ensor provides a signal of spac e te mperat ure to t he PremierL ink control.
32 Economizer Contr ols Indoor Ai r Qua li ty (CO 2 )S e n s o r— The indoor air quality sensor access ory monitors space carbon di oxide (CO 2 ) levels.
33 J5-2 J5-3 13 11 TB3 TB3 OAQ Sensor PL 24 V AC 4-20mA SIG COM C11157 Fig. 49 - - O utdoor C O 2 Se nsor Conne ct io ns Spac e Rel ati ve Hum idi ty Senso r or Hum idi stat Conne cti ons — Spac e R.
34 Smoke De te cto r/ Fi re Shutdown (FSD) — This fun ction is available only w hen Premier Link is conf igured fo r (Space) S enso r Mode. The unit is factory- - wired f or Premier Link FS D operation wh en Premier Link is factory- - installed .
35 CCN Comm unic ati on Bus — The Premie rLink cont rolle r connects to the bus in a dai sy chain arrangement. Nega tive pins on each component must be con nected to resp ective n egative pins , an d likewis e, positive pins o n each component must be connected to res pective po sitive pin s.
36 R TU O pen Contr ol Syste m The R TU Open control is fa ctory - - mounted in the 48HC unit’ s main c ontrol box, to the right of the CTB. See Fig. 37. Factory wiri ng is comple ted t hrough harnesses connected to th e CTB. Field connections for R TU Open sensors w ill be m ade at the Phoeni x connect ors on the R T U Open board.
37 C11142 Fig. 58 - - R TU Open System Control Wiring Diagram 48HC.
38 C11143 Fig. 59 - - R TU Open System Control Wiring Diagram with H umidi- - Mi Zer R 48HC.
39 T abl e 9 – RTU Ope n Control l er Inputs a nd Out puts POINT NAME BACne t OBJ ECT NAM E TYPE OF I /O CON NECTI ON PIN NUM BE R( S) DEDICATE D INPUTS Spa ce T emp / Z one T emp zone_tem p AI (10K.
40 to the R TU Open . Conn ect to the wires to the removable Phoenix conne ctors and then re connect the c onnectors to the board. Sp ace T emperatu re ( SPT) S ens ors — There are two t ypes of SPT.
41 isolate d 24 vac power source to the sensor and t o connect the sensor to the cont rol board te rminal s. T o connect the sens or to the contro l, identify the positive (4 to 20 mA) and ground (SIG COM) terminal s on the sensor .
42 Relative Humidity Sensor (Polarized Male Connector ) J4-1 or J4-4 + 24 VDC Supply Voltage J4-2 or J4-5 (-) 4 to 20 mA Cu rrent Loop Output to RTU-OPEN 4-20 VAC GND 0-5V mA or or VDC 0 -10V SPAN ZERO C10839 Fig.
43 Com munic atio n W iring - - Pr otocols Genera l — Protocols are t he c ommuni cati on language s spoken by control devi ces. The m ain purpose of a protoc ol i s to communi cate informatio n in the most eff icient method pos sible. D iff erent pro tocols ex ist to prov ide dif ferent kinds of informat ion for different a pplica tions.
44 Loca l Acces s — BACvi ew 6 H andhe ld: The BAC view 6 is a keypad/ display interface us ed to conn ect to the R TU Open to access the control i nformat ion, rea d sensor values, a nd test the R TU, see Fig. 70. This is an accessor y interface that does n ot come with the R TU O pen contro ller and can only be us ed at the unit.
45 T able 10 – LEDs The LE Ds on the R T U Open Control Board (see Fig. 57) show the sta tus of certa in functi ons: If th is L ED is o n... Statu s is.
46 GRA BLK RED – 4-20 Main + VDC Out – 4-20 Main Out + 24-36 VDC In LOW GND 24V 7 PL6-1 (24- V) PL6-4 (COM) Outside Air Enthalpy Switch Return Air Enthalpy Sensor CTB ECON (P’LINK: to J4-2) or (RTU Open: to J2-6) C11161 Fi g.
47 T o install the r eturn air sensor samp li ng tu be: 1. Remove t he tube from its shipping loca tion. 2. Open the unit end to acces s the retur n air s ensor (loc- ated on righ t - - hand partitio n) 3. Orient the tube’ s sampling h oles into the return air flow di rection.
48 T abl e 1 1 - - Uni t W i re/F use or H ACR Breake r Siz ing Dat a (cont ) UNIT NOM. V --- P h --- H z IFM TYPE COMB USTIO N F AN MOTOR POWE R EXHAUS T w/ PWRD C .O. NO P .E . w/ P .E . (pwrd fr/ unit) FLA FLA MC A FUSE o r HACR BRKR DISC. SIZE MCA FUSE o r HACR BRKR DISC.
49 Legend and Notes for T able 1 1 LEG END: BRKR - - - C ircuit breaker CO - - - C onveni ence out let DISC - - - Discon ne ct FLA - - - Full loa d a mps LRA - - - Locke d roto r amps MCA - - - Minimu.
50 Economizer 2 Position Damper Unit Without Economizer or 2 Position Damper C10645 Fig. 76 - - Ec onoMi$er t IV Wir ing Ste p 13 — Adjus t Fac tor y- - Installe d Optio ns Eco noM i$e r IV O c cupanc y Swi tc h — Refer to Fig. 76 for general EconoMi$er IV wiring.
51 48HC.
52 Copyright 2011 Carrier Corp. D 7310 W . Morris St. D In dianapolis, IN 46231 Printed in U.S .A. Edition Date: 04/11 Manufacturer reser ves the right to change , at any time, specifications and d esigns without notice and without oblig ations.
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