Fig. 22 - Turbine Condensate Drain Tank High Level Switch - York MAXE YST Wiring Diagram

FIG. 22 – TURBINE CONDENSATE DRAIN TANK
HIGH LEVEL SWITCH
TURBINE CONDENSATE DRAIN TANK HIGH
LEVEL SWITCH - In some applications, a condensate
drain tank is used to automatically collect and drain any
water that accumulates in the turbine casing. If the tank is
provided with a high level float switch, it may be connected
to the chiller control panel to provide a warning in the event
that the tank draining controls malfunction. The contact
opens on high level to activate the warning.
1. This drawing shows recommended fi eld control
wiring modifi cations (by others) to the standard
OptiView Control Center Wiring Diagram 160.67-
™
PW6.
2. If more than one of these modifi cations is to be uti-
lized with a particular unit, additional consideration
must be given to the application to insure proper
functioning of the control system. Consult your
YORK representative.
3. The additional controls and wiring for these modifi -
cations are to be furnished and installed in the fi eld
(by others). See WARNING on page 2.
4. The controls specifi ed are recommended for use,
but other controls of equal specifi cations are ac-
ceptable.
5. All wiring shall be in accordance with the National
Electrical Code, and applicable State and Local
Codes.
6. Each 115VAC fi eld connected inductive load, i.e.
relay coil, motor starter coil, etc., shall have a tran-
sient suppressor wired (by others) in parallel with it's
coil, physically located at the coil. Spare transient
suppressors are furnished in a bag in the OptiView
Control Center.
JOHNSON CONTROLS
LD09465
NOTES
7. Maximum alllowable current draw between circuits
45 , 151 , and 2 for each installed device is 2 amp
holding and 10 amps inrush - see OptiView
Center Wiring Diagram in Note 1.
8. For required fi eld wiring connections of the chilled
and condenser liquid pump contacts (terminals 45
and 151 on OptiView
terminal block TB2) and chilled and condenser wa-
ter fl ow switches ( terminals 1 , 11 , and 12 on the
OptiView ™
TB2), see Field Wiring diagram 160.67-PW4 and
160.67-PW5.
The chilled and condenser liquid fl ow switches are
safety controls. They must be connected to pre-
vent operation of the chiller whenever liquid fl ow
is stopped. The use of the liquid fl ow switches for
purposes other than protection of the chiller may be
accomplished by installing 2 fl ow switches, installing
a fl owswitch and a relay, or installing a fl ow switch
with double pole, double throw contacts.
9. Do NOT apply voltage on fi eld wiring terminal blocks
TB4, TB6, and TB7 in YORK OptiView
Center. All control and instrument power sources
™
are received from the Control Center.
FORM 160.67-PW2 (1007)
Control Center fi eld wiring
™
Control Center fi eld wiring terminal board
Control
™
Control
™
15