Carrier 16JT080L-150L Specifikace

Start-Up, Operation, andMaintenance InstructionsSAFETY CONSIDERATIONSAbsorption liquid chillers provide safe and reliable serv-ice when operated withi

MACHINE CONTROLSStart-Stop Systems —The type of start-stop systemis selected by the customer. The most commonly used sys-tems are described below. Rev

Fig. 10 — Typical Wiring Diagram11

Fig. 10 — Typical Wiring Diagram (cont)12

Fig. 11 — Typical Control Wiring13

Typical Control Sequence, Normal Start(Fig. 10 and 14)1. When power is supplied to the chiller control panel andthe chiller is not in operation, the S

LEGENDBZ — Alarm BuzzerGL — Run LightOL1 — Chilled and Cooling Water Fault Indicator LightOL2 — Refrigerant and Solution Pump Fault Indicator LightOL3

Typical Control Sequence, Normal Stop(Fig. 10 and 15)1. If the Local Remote switch is in the remote position, theshutdown sequence begins when the rem

Typical Control Sequence, Abnormal Stop(Fig. 10 and 16)1. Abnormal shutdown occurs automatically when any ofthe chiller safety devices sense a conditi

Normally closed 4X contacts energize the Cycle- Guard™valve to transfer refrigerant into the solution for dilu-tion. The refrigerant pump and Cycle-Gu

Pneumatic ValveActuator (Fig. 18) — The proportional mil-liamp output signal from the controller is converted to a pro-portional pneumatic signal in t

CONTENTSPageSAFETY CONSIDERATIONS ...1INTRODUCTION ...3MACHINE DESCRIPTION ...3-9Basic Ab

7. Auxiliary evacuation pump, 5 cfm (2.5 l/s) or greater,with oil trap, flexible connecting hose and connectionfittings8. Compound pressure gage, 30-in.

SHORT INTERVAL TEST — Use this test procedure if:1. No previous absolute pressure readings have been re-corded, OR2. Previous absolute pressure readin

To charge refrigerant into the evaporator, fill clean solu-tion containers with the distilled or deionized water. Chargethe water through the refrigera

Depress the Stop button to silence the alarm.Marks on the indicator plate are for reference only andare not calibrated in degrees.4. Allow water bath

valve actuator) in the MAN. (MANUAL) mode. Pressthe MAN./AUTO. button to switch between the twomodes.The actual output value is not important at this

INITIAL START-UPThe following start-up procedures are based on a semi-automatic system in which all pumps energize when the start-stop switch is place

Fig. 22A — Equilibrium Diagram for Lithium Bromide in Solution (F)Fig. 22B — Equilibrium Diagram for Lithium Bromide in Solution (C)26

6. The refrigerant charge can be adjusted at either refriger-ant level. In Table 6, use the refrigerant level that corre-sponds to the weak solution c

Start-Up After Limited Shutdown1. Place the capacity control, Cycle-Guard,™ and Local-Remote settings in the position indicated in Table 7.Table 7 — S

Actions After Abnormal Shutdown — Abnormalstop occurs automatically when any of the safety devices inTable 8 sense a condition which might be potentia

INTRODUCTIONEveryone involved in the start-up, operation, and main-tenance of the 16JT machine should be thoroughly familiarwith the following instruc

ENGINEER DATEJOB NAME MACHINE SIZE SERIAL NO.TIME OF DATAPURGE EXHAUST AMOUNT/NUMBERCHILLEDWATERTemperature EnteringTemperature LeavingPressure Enteri

Purge Manual Exhaust Procedure (Fig. 25) —See also Machine Description section, pages 3-9, for expla-nation of the purge operation, component identific

Fig. 26A — Equilibrium Diagram for Lithium Bromide in Refrigerant (F)Fig. 26B — Equilibrium Diagram for Lithium Bromide in Refrigerant (C)32

6. Close exhaust valve and mark liquid level on invertedbottle.Remove bottle from container.7. Return purge to normal operation. Replace exhaust bottl

Solution or Refrigerant Sampling — (See precau-tions pertaining to handling lithium bromide solution asdescribed in Solution and Refrigerant Charging

Adding Octyl Alcohol — Octyl alcohol may be re-quired when leaving chilled water temperature starts to riseabove design temperature without alteration

ThermoswitchAdjustment— Check the 26SH thermo-switch while machine is operating.1. Athermowell is located on the absorber spray supply pipenear the th

LEGEND1—Circulation Pipe2—O-Ring Gasket3—Bolt4—Bolt5—Motor End Cover6—Motor End CoverGasket7—Radial Bearing (B)8—Thrust Bearing (B)9—Thrust Collar (B)

3. Open the motor wiring terminal box (Item 11) and dis-connect the motor power leads. Mark the leads to en-sure proper reassembly.4. Remove nuts (Ite

5. Check the impeller wear surfaces. If very rough or wornto outside diameters less than listed in Table 11, replacethe impeller.Table 11 — Maximum We

187652 (NOT SHOWN)34LEGEND1—High-Stage Generator2—Low-Stage Generator3—Condenser4—Purge Storage Chamber5—Control Panel6—Solution Heat Exchanger7—Abs

Solution Decrystallization — Crystallization occurswhen strong solution concentration and temperature crossover to the right of the crystallation line

TROUBLESHOOTING GUIDEPROBLEM/SYMPTOM PROBABLE CAUSE REMEDYMachine Will Not Start orShuts Down(Panel RUN light out,pumps off.)No power to control panel

TROUBLESHOOTING GUIDE (cont)PROBLEM/SYMPTOM PROBABLE CAUSE REMEDYInadequate Purging(Low machine capacity andhigh absorber loss — seeAbsorber Loss Dete

Copyright 1993 Carrier CorporationManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and w

Fig. 3 — 16JT810-880 Machine Components, External Schematic (Typical)LEGEND1—Rupture Disk2—Refrigerant Condensate Line3—Auxiliary Evacuation Valve4—St

FlowCircuits— Figures 5 and 6 illustrate the basic flowcircuits of the 16JT absorption chiller.The liquid to be chilled is passed through the evaporat

During high load operation, some abnormal conditions cancause the lithium bromide concentration to increase abovenormal, with the strong solution conc

Point 10 represents the strong solution leaving the low-stagegenerator and entering the low-temperature heat exchanger.It is at a weaker concentration

Purge System — The basic components and flow cir-cuits of the motorless purge are shown in Fig. 8 and 9.The purge system automatically removes nonconde