CONTENTS
INTRODUCTION
General Description
Panel Hardware.
Vacuum Fluoresent Display
Reset Control Options.
3
3
4
5
5
INSTALLATION
Factory Mounted
&
Wired
6
Interconnecting Wiring
6
Starter Type
7
Starter Overload Relay Contacts
8
Conventional Overloads
8
Multiple Starter Resistors
8
Chilled Water Pump Control
8
Alarm Relay.
9
Cooling Tower Fan Control
9
Lead/Lag Load Balance or CPC
10
Wiring.
10
Remote Reset Control
10
STARTING THE UNIT
Initial Start-up Checks.
18
Hexadecimal Switches
18
Mechanical Protective Switch Settings
19
Dry Running the Control Panel
19
Starting the Centrifugal Compressor
20
OPERATION
Operating Sequence
.22
Temperature Control Operation
.
:22,
23
Software Version Number Code Information
23
Oil Temperature.
24
The Keypad . . .
..__............._._..
25
To Change a Setpoint
25
Password Information
25
Water Temps Keypad
26
Softload
Keypad
.._..........._
26
Clock Schedule Keypad
27
Override Control
27
Manual Vane Control
27
Fault History-Clear Fault.
27
Set-up Options
28
Time Control Functions (Not Clock Schedule)
28
Start-to-Start/Stop-to-Start
28
Oil Pump is On/Post Lube (Oil Pump)
28
Condenser Pump Timer
28
Ent. Evap. Timer
.
.
29
Delay Timer
.
29
Load Delay (Waiting for Load)
29
MCR is On (or Stop, Unloading)
29
Override (HRS)
29
Soft Load (Ramp Up Time)
29
Step and Wait
29
OPERATION LEAD-LAG/LOAD BALANCE PANEL
General
..__.___.
_.
Lead-Lag . . . .
..______.....___.__..
Lag Start-Stop
Automatic Start-up.
Load Balance . . .
..__._____..._.__.._..
Key Display Section
Key Setpoints Section
.
Key Service Section
Key Set-up Options
Key Clock Schedule
Key Service Setpoint.
29
29
29
29
29
30
30
31
31
32
33
SERVICE
Protective Control Time Constraints.
Signal Converter
Watchdog Protection
Oil Gauge Transducer.
Sensors . .
Solid-state Relay Testing
Trouble Symptom Chart
.
Test Procedure-Trouble Analysis
MicroTech
Panel Layout
Operating Log Record
Warranty
35
35
_
35
36
36
38
k,
.39
41
42
43
44
CAUTION
Connections and service to this panel must only be provided by personnel
knowledgeable in the operation of the equipment being controlled. Ignorance or
carelessness can cause personal injury or equipment damage.
The word “EnGinn” or “ENGINN” used in this publication is a copyrighted trademark of EnergyLIne Systems
L.P.
and is used with permission.
“MicroTech”
IS a trademark of
SnyderGeneral
Corporation, Minneapolis, MN.
01994
SnyderGeneral
Corporation. All rights reserved throughout the world.
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