Specifications

24
Step 4 — Configure Motormaster® V Control —
The Motormaster V control is configured for 1 of 12 operation
modes based on the inputs to the small terminal block on the
face of the control. 30GTN,GTR, 38AH and 38AKS units use
operating modes 1-4 and 30GUN,GUR units use modes 9-12.
09DK units may use any of these modes according to unit volt-
age and refrigerant. In these configurations, the MMV modu-
lates the fan speed based on a 0 to 5V feedback signal on pin 5.
To configure the Motormaster V control, install a jumper
into the control terminal block according to Table 8 below. The
start contact is required to configure the drive for 50/60 Hz
operation and input voltage. A jumper is used to enable the
R-134a set point rather than the default R-22 set point. Once
the control is powered in Step 6 below, it will change to the
mode selected according to the inputs. No additional program-
ming is required. Note that the pressure transducer must be
attached for proper configuration.
Table 8 — Motormaster V Configuration Table
*At 208 v, the drive can run in either mode.
Step 5 — Configure Unit for Motormaster V Oper-
ation, 30GTN,GTR,GUN,GUR Only —
The unit must
be configured for the Motormaster V electronic control opera-
tion. Use the ComfortLink™ scrolling marquee display to con-
figure the system as following:
1. Inspect all wiring and verify that it matches the appropri-
ate schematic and that all connections are tight
2. Apply main power and control power to unit.
3. Set the Enable/Off/Remote switch to OFF position.
4. Press the Escape key until the screen is blank
and use the arrow key to select the Configuration mode
LED.
5. Press key, then use arrow key to select the sub-
mode ‘OPT1’, then press key.
6. Press the down arrow key until ‘MMR.S’ displayed.
7. Press key twice. The word ‘PASS’ and
‘WORD’ will flash.
8. Press key and 1111 will be displayed. Enter the
correct password and ‘NO’ will flash.
9. Use arrow keys to change to ‘YES’ and press
key.
10. Return the Enable/Off/Remote switch to the proper
position.
11. The chiller is now configured for Motormaster control.
Step 6 — Test Motormaster V Control — To test
the control and motor, in the Test mode, run any compressor in
either circuit. The Motormaster V electronic control adjusts the
fan speed based on the liquid pressure input. Ensure that fans
are rotating clockwise (as viewed from above). If rotation is
backward, lockout all power then swap 2 leads AFTER the
Motormaster control.
MODE
NOM
VO LTAGE
Hz
CONTROL INPUT
(PIN 5)
START
CONTACT
SETPOINT
JUMPER
REFRIGERANT
1
208*/230/
460/575
60
Internal PI control,
0-5V feedback
TB1-TB2 None
R-22
2 208*/380 60
Internal PI control,
0-5V feedback
TB13A-TB2 None
3 230 50
Internal PI control,
0-5V feedback
TB13B-TB2 None
4 380/415 50
Internal PI control,
0-5V feedback
TB13C-TB2 None
9
208*/230/
460/575
60
Internal PI control,
0-5V feedback
TB1-TB2 TB12-TB2
R-134a
10 208*/380 60
Internal PI control,
0-5V feedback
TB13A-TB2 TB12-TB2
11 230 50
Internal PI control,
0-5V feedback
TB13B-TB2 TB12-TB2
12 380/415 50
Internal PI control,
0-5V feedback
TB13C-TB2 TB12-TB2
ESCAPE
ENTER
ENTER
ENTER
ENTER
ENTER
MOTORMASTER V ACCESSORY
Fig. 27 — 30GTN,GTR,GUN,GUR130-210 (and Associated Modular Units) Schematic Diagram
LEGEND
FCB — Fan Circuit Breaker
FM — Fan Motor
MM — Motormaster® Control
MMF — Motormaster Fuse Block
MMPT — Motormaster Pressure Transducer