Carrier 48AJ 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 — 48/50AJ,AK,AW,AY020-027 Unitsa48-8254

11Fig. 4 — Power Schematic — 48/50AJ,AK,AW,AY030-035 Unitsa48-8255

12Fig. 5 — Power Schematic — 48/50AJ,AK,AW,AY036-041 Unitsa48-8256

13Fig. 6 — Power Schematic — 48/50AJ,AK,AW,AY050 Unitsa48-8257

14Fig. 7 — Power Schematic — 48/50AJ,AK,AW,AY051 and 060 Unitsa48-8258

15Fig. 8 — Main Control Box Circuit — 48/50AJ,AK,AW,AY020-060 Unitsa48-8259

16Fig. 9 — Auxiliary Control Box Wiring — 48/50AJ,AK,AW,AY020-060 Unitsa48-8260

17Fig. 10 — Controls Expansion Board Wiring — 48/50AJ,AK,AW,AY020-060 Unitsa48-8261

18Fig. 11 — Gas Heat Control Circuit (2-Stage Heat) — 48AJ,AK,AW,AY020-050 Unitsa48-8310

19Fig. 12 — Gas Heat Control Circuit (2-Stage Heat) — 48AJ,AK,AW,AY051 Unitsa48-8311

2LEGEND AND NOTES FOR FIG. 1-18LEGENDBP — Building PressureC—Contactor, CompressorCAP — CapacitorCB — Circuit BreakerCCB — Control Circuit BreakerCCH

20Fig. 13 — Gas Heat Control Circuit (2-Stage Heat) — 48AJ,AK,AW,AY060 Unitsa48-8312

21Fig. 14 — Gas Heat Control Circuit (Staged Gas Heat) — 48AJ,AK,AW,AY020-050 Unitsa48-8313

22Fig. 15 — Gas Heat Control Circuit (Staged Gas Heat) — 48AJ,AK,AW,AY051 Unitsa48-8314

23Fig. 16 — Gas Heat Control Circuit (Staged Gas Heat) — 48AJ,AK,AW,AY060 Unitsa48-8315

24Fig. 17 — Electric Heat Control Circuit — 50AJ,AK,AW,AY020-050 Unitsa48-8266

25Fig. 18 — Electric Heat Control Circuit — 50AJ,AK,AW,AY051 and 060 Unitsa48-8267

26BLK23GRNDPAREDBLKGRNREDAB652L1L1L1T1T2T3SEE NOTE 112BLKYELBLUFUSEFUSEFUSEMM-FCCB2221111213BLKREDBLU123OFM2FR24FR13C1C2OFC1BLKGRNREDBLKGRNREDDPAMM-FF

27Fig. 21 — Space Temperature Averaging Wiringa48-6692a48-669334REDBLKTB534TB5SENSOR 1SENSOR 2SENSOR 3SENSOR 4SENSOR 1SENSOR 2 SENSOR 3SENSOR 4SENSOR

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 — 48/50AJ,AK,AW,AY020-035 Unitsa48-8308

9Fig. 2 — Component Arrangement — 48/50AJ,AK,AW,AY036-060 Unitsa48-8309LOCATIONS ARE TYPICAL FOR ALL SIZE036-060 UNITS. SIZE 060 UNITS HAVE 6(SIX) OUT