Carrier 48HX Manuel d'utilisateur

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

10Fig. 3 — Power Schematic — 48/50A2,A3,A4,A5020-050 Unitsa48-8385

11Fig. 4 — Power Schematic — 48/50A2,A3,A4,A5060 RTPF Unitsa48-8386

12Fig. 5 — Power Schematic — 48/50A2,A3,A4,A5060 MCHX Unitsa48-8387

13~~~~TONEXTPAG EFig. 6 — Main Control Box Circuit — 48/50A2,A3,A4,A5020-060 Unitsa48-8388

14~~~~TOPREVIOUSPAG Ea48-8389Fig. 6 — Main Control Box Circuit — 48/50A2,A3,A4,A5020-060 Units (cont)

15ABB ACS800 DRIVENOT USEDABB ACS550 DRIVESTANDARDTOSHIBA E3 DRIVENOT USEDFig. 7 — Auxiliary Control Box Wiring — 48/50A2,A3,A4,A5020-060 Unitsa48-839

16Fig. 8 — Controls Expansion Board Wiring — 48/50A2,A3,A4,A5020-060 Unitsa48-8261

17Fig. 9 — Gas Heat Control Circuit (2-Stage Heat) — 48A2,A3,A4,A5020-050 Unitsa48-8310

18Fig. 10 — Gas Heat Control Circuit (2-Stage Heat) — 48A2,A3,A4,A5060 Unitsa48-8311

19Fig. 11 — Gas Heat Control Circuit (Staged Gas Heat) — 48A2,A3,A4,A5020-050 Unitsa48-8313

2ELECTRIC HEAT POWER DIAGRAMSNOTE: All power leads connect to (single) TB7 power terminal block.There are 2 or 3 conductors per terminal.LEGEND AND NO

20Fig. 12 — Gas Heat Control Circuit (Staged Gas Heat) — 48A2,A3,A4,A5060 Unitsa48-8315

21Fig. 13 — Electric Heat Control Circuit — 50A2,A3,A4,A5020-050 Unitsa48-8266

22Fig. 14 — Electric Heat Control Circuit — 50A2,A3,A4,A5060 Unitsa48-8267

23BLK23GRNDPAREDBLKGRNREDAB652L1L1L1T1T2T3SEE NOTE 112BLKYELBLUFUSEFUSEFUSEMM-FCCB2221111213BLKREDBLU123OFM2FR24FR13C1C2OFC1MMBLKGRNREDBLKGRNREDDPAMM-

24Fig. 18 — Space Temperature Averaging Wiringa48-669334REDBLKTB534TB5SENSOR 1SENSOR 2SENSOR 3SENSOR 4SENSOR 1SENSOR 2 SENSOR 3SENSOR 4SENSOR 5SENSOR

2536 kW, 208/230 V, SIZES 020-05054 kW, 208/230 V, SIZE 06072 kW, 208/230 V, SIZES 020-050108 kW, 208/230 V, SIZE 06036 kW, 460 V, SIZES 020-05024 kW,

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

3SEQUENCE OF OPERATIONConstant Volume (CV) Units — On power up, thecontrol module will activate the initialization software. Theinitialization softwa

4If the control is connected to a ComfortID™ system, theroom terminals are equipped with microprocessor controls thatgive commands to the base module.

5During the occupied period in the absence of a demand forcooling using outside air, if CO2 level is below the set point forthe minimum ventilation le

6INPUT/OUTPUT CHANNEL DESIGNATIONS — ECONOMIZER CONTROL BOARD (ECB1)INPUT/OUTPUT CHANNEL DESIGNATIONS — VAV CONTROL BOARD (ECB2)INPUT/OUTPUT CHANNEL D

7INPUT/OUTPUT CHANNEL DESIGNATIONS — CONTROLS EXPANSION BOARDINPUT/OUTPUT CHANNEL DESIGNATIONS — FIELD CONNECTION TERMINAL STRIPS* This input is avail

8Fig. 1 — Component Arrangement — 48/50A2,A3,A4,A5020-035 Unitsa48-8308

9Fig. 2 — Component Arrangement — 48/50A2,A3,A4,A5040-060 Unitsa48-8309LOCATIONS ARE TYPICAL FOR ALL SIZE040-060 UNITS. SIZE 060 RTPF (ROUNDTUBE PLATE