Evp Chiller Control Checkout - Trane RAUJ-C20 Installation, Operation And Maintenance Manual

used, refer to the specific checkout procedures for that
actuator.
W W A A R R N N I I N N G G
H H a a z z a a r r d d o o u u s s V V o o l l t t a a g g e e ! !
F F a a i i l l u u r r e e t t o o d d i i s s c c o o n n n n e e c c t t p p o o w w e e r r b b e e f f o o r r e e s s e e r r v v i i c c i i n n g g c c o o u u l l d d
r r e e s s u u l l t t i i n n d d e e a a t t h h o o r r s s e e r r i i o o u u s s i i n n j j u u r r y y . .
D D i i s s c c o o n n n n e e c c t t a a l l l l e e l l e e c c t t r r i i c c p p o o w w e e r r , , i i n n c c l l u u d d i i n n g g r r e e m m o o t t e e
d d i i s s c c o o n n n n e e c c t t s s b b e e f f o o r r e e s s e e r r v v i i c c i i n n g g . . F F o o l l l l o o w w p p r r o o p p e e r r
l l o o c c k k o o u u t t / / t t a a g g o o u u t t p p r r o o c c e e d d u u r r e e s s t t o o e e n n s s u u r r e e t t h h e e p p o o w w e e r r
c c a a n n n n o o t t b b e e i i n n a a d d v v e e r r t t e e n n t t l l y y e e n n e e r r g g i i z z e e d d . . V V e e r r i i f f y y t t h h a a t t n n o o
p p o o w w e e r r i i s s p p r r e e s s e e n n t t w w i i t t h h a a v v o o l l t t m m e e t t e e r r . .
1. Turn all control switches to the "Off" position to
deactivate the Evaporator Fan and the Mechanical
Cooling. Verify that the main power disconnect
switch for the condensing unit and the control
circuit switch 1S2, in the unit control panel, is
"OFF".
2. Verify that the field provided disconnect switch and/
or the control circuit switch for the economizer
actuator(s) is "OFF".
3. At the actuator, disconnect the control wires
connected to Terminals W, R, B, and Y.
4. Install a jumper across the actuator terminals R-to-
W-to-B.
5. Close the field provided disconnect switch and/or
the control circuit switch for the economizer
actuator(s). If the economizer actuator is working
properly, it should drive to mid-position.
6. Open the field provided disconnect switch and/or
the control circuit switch for the economizer
actuator(s) and remove the jumpers installed in
step 4.
7. Reconnect the control wires to the actuator
terminals W, R, B, and Y.
8. Restore power to the actuator circuit and turn all
control switches to the "ON" position and restore
power to the system.

EVP Chiller Control Checkout

(Honeywell W7100G)
N N o o t t e e : : The following checkout procedure must be
performed in its entirety and in the sequence
given.
SS-SVX11K-EN
W W A A R R N N I I N N G G
H H a a z z a a r r d d o o u u s s V V o o l l t t a a g g e e ! !
F F a a i i l l u u r r e e t t o o d d i i s s c c o o n n n n e e c c t t p p o o w w e e r r b b e e f f o o r r e e s s e e r r v v i i c c i i n n g g c c o o u u l l d d
r r e e s s u u l l t t i i n n d d e e a a t t h h o o r r s s e e r r i i o o u u s s i i n n j j u u r r y y . .
D D i i s s c c o o n n n n e e c c t t a a l l l l e e l l e e c c t t r r i i c c p p o o w w e e r r , , i i n n c c l l u u d d i i n n g g r r e e m m o o t t e e
d d i i s s c c o o n n n n e e c c t t s s b b e e f f o o r r e e s s e e r r v v i i c c i i n n g g . . F F o o l l l l o o w w p p r r o o p p e e r r
l l o o c c k k o o u u t t / / t t a a g g o o u u t t p p r r o o c c e e d d u u r r e e s s t t o o e e n n s s u u r r e e t t h h e e p p o o w w e e r r
c c a a n n n n o o t t b b e e i i n n a a d d v v e e r r t t e e n n t t l l y y e e n n e e r r g g i i z z e e d d . . V V e e r r i i f f y y t t h h a a t t n n o o
p p o o w w e e r r i i s s p p r r e e s s e e n n t t w w i i t t h h a a v v o o l l t t m m e e t t e e r r . .
The W7100G (6U11) chilled water controller can be
checked out using a highly accurate digital voltmeter,
the W7100 accessory tool kit (Trane part # TOL-0101 or
Honeywell part # 4074EDJ), and the Honeywell
4074EFV resistor bag assembly.
1. Verify that the main power disconnect switch and
the control circuit switch 1S2, in the unit control
panel, is "OFF".
2. At the unit control panel, unplug the reset relay
1K11 and 1K12, (1K12 used on 40 through 60 Ton
units only). Refer to the connection diagram that
shipped with the unit for the location of the relay(s).
3. At the Chilled Water controller (6U11) inside the
remote panel, disconnect the sensor (6RT2) leads
form Terminals T & T1.
4. Remove the 3,400 ohm resistor (blue leads) from
the test kit and connect it across Terminals T and T1
to simulate a discharge air temperature of 60ºF.
5. Remove the factory-installed jumper (wire 209A)
from the "fast response" Terminals 9 & 10.
6. To simulate a call for maximum reset, remove the
jumper from Terminals 6 & 7 and install the 1780
ohm resistor (red leads), from the test kit, across
Terminals 6 and 7.
7. Install a jumper across the P1 and P2 Terminals
(remote setpoint input).
8. Remove the red dust cover from the test plug
socket at the bottom of the W7100G. Insert the
"Test Plug", from the kit, into the test plug socket.
The test plug overrides most of the built-in time
delays for staging the compressors "On" and "Off".
Refer to the illustration in
terminal and control dial identification.
9. Set the "Reset F" dial at 20ºF and the "Setpoint F"
dial at 10ºF
10. "Close" the main power disconnect switch and turn
the control circuit switch 1S2, in the unit control
panel, "ON".
P P r r e e - - S S t t a a r r t t
Figure 71, p. 100 for
99