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*Some 23XL chillers will have both an oil temperature sensor and an oil level safety switch (two separate components).

Fig. 12 — 23XL Control and Sensor Locations (TD Frame 4 Chillers)

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 115 116

Instructions 1
CONTENTS 2
CONTENTS (cont) 3
INTRODUCTION 4
23XL CHILLER FAMILIARIZATION 5
(Fig. 1, 2A, and 2B) 5
System Components — 5
REAR VIEW 6
FRONT VIEW 6
Oil Reclaim System — 9
Oil Loss Prevention — 9
Slide Valve Principle — 12
STARTING EQUIPMENT 12
CONTROLS 14
Definitions 14
General Controls Overview — 14
PIC II System Components — 14
Fig. 16 — Power Panel 18
Fig. 15 — Control Panel 18
55.1 44.1 40.7 19
85.0 95.0 98.1 19
21.8 132.9 93 19
Table 3 — CVC Display Data 26
PIC II System Functions 37
Safety Controls — 38
Shunt Trip (Option) — 38
Default Screen Freeze — 38
Ramp Loading — 38
Water/Brine Reset — 41
Fig. 24 and 25) — 41
Lead/Lag Control — 42
Ice Build Control — 44
Service Operation — 46
START-UP/SHUTDOWN/ 47
RECYCLE SEQUENCE (Fig. 29) 47
Local Start-Up — 47
Shutdown Sequence — 48
Leak Test Chiller — 50
(TC Frame 1 and 2 Chillers) 54
(TD Frame 4 Chillers) 55
Check Starter 59
Perform a Control Test — 63
High Altitude Locations — 63
INITIAL START-UP 65
Preparation — 65
PUMPOUT AND REFRIGERANT 69
TRANSFER PROCEDURES 69
Preparation — 69
Check Pressure Transducers — 76
TROUBLESHOOTING GUIDE 76
Overview — 76
Checking Display Messages — 77
Control Test — 78
LEGEND TO TABLES 9A-9J 78
A. MANUAL STOP 79
B. READY TO START 79
C. IN RECYCLE SHUTDOWN 79
No reset is necessary 80
E. START-UP IN PROGRESS 80
F. NORMAL RUN 81
G. NORMAL RUN WITH OVERRIDES 81
H. OUT-OF-RANGE SENSOR ALARMS 81
J. CHILLER ALERTS 84
J. CHILLER ALERTS (cont) 85
Control Modules — 88
Notes on Module Operation 88
Solid-State Starters — 89
INTEGRATED STARTER MODULE 90
Physical Data — 92
INITIAL START-UP CHECKLIST 105

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