JOHNSON CONTROLS
43
SECTION 4 – INSTALLATION
FORM 150.27-NM1
ISSUE DATE: 09/30/2015
4
TABLE 4 -
YCRL CONNECTION LINE SIZES
UNIT SIZE
(60HZ)
LIQUID LINE
SYSTEM 1, IN.
LIQUID LINE
SYSTEM 2, IN.
DISCHARGE LINE
SYSTEM 1, IN.
DISCHARGE LINE
SYSTEM 2, IN.
0064HE
7/8
7/8
1 3/8
1 3/8
0074HE
1 1/8
7/8
1 5/8
1 3/8
0084HE
1 1/8
1 1/8
1 5/8
1 5/8
0096HE
1 1/8
1 1/8
1 3/8
1 3/8
0118HE
1 1/8
1 1/8
1 5/8
1 5/8
0126HE
1 1/8
1 1/8
2 1/8
2 1/8
0156HE
1 1/8
1 1/8
2 1/8
2 1/8
0177SE
1 1/8
1 1/8
2 1/8
2 1/8
0198SE
1 1/8
1 1/8
2 1/8
2 1/8
YCRL Chiller Charge Capability
provides a refrigerant charge
capability for each refrigerant system in the chiller.
This information is valuable when calculating the total
charge needed for each of the refrigerant systems. Sim-
ply add the system charge capability to the calculated
charge of all the field piping and remote condenser in
the circuit to compute the total approximate charge re-
quired for each refrigerant system in the chiller.
TABLE 5 -
YCRL CHILLER CHARGES
MODEL
(60 HZ)
TOTAL HFC-410A
CHARGE (LB)
PER SYSTEM (LB)
0064HE
34
17
0074HE
40
20
0084HE
82
41
0096HE
106
53
0118HE
90
45
0126HE
126
63
0156HE
126
63
0177SE
122
63/59
0198SE
126
63
Note:
Charge for remote condenser and interconnecting piping must be
calculated separately.
CONTROL PANEL WIRING
All wiring to the control panel terminal block (CTBI)
(nominal 30VDC) must be run in screened cable, with
the screen earthed at the panel end only. Run screened
cable separately from mains cable to avoid electrical
noise pick-up.
The voltage free contacts connected to CTB1 must be
suitable for 30VDC (gold contacts recommended). If
the voltage free contacts form part of a relay or contac-
tor, the coil of the device must be suppressed using a
standard R/C suppressor. The above precautions must
be taken to avoid electrical noise which could cause a
malfunction or damage to the unit and its controls.
The length of cable to these terminals
must not exceed 24 ft. (7.5 m).
Flow Switch (SF)
A chilled liquid flow switch of suitable type must be
connected to terminals 13 and 14 to provide adequate
protection against loss of liquid flow.
After connection, do not switch on mains
power to the unit until it has been com-
missioned by Johnson Controls Autho-
rized personnel. Some internal compo-
nents are live when mains is switched ON.
The unit ON/OFF rocker switch on the front of the
control panel has been set in the OFF position at the
factory.
This switch MUST remain in the OFF position until the
unit is commissioned by Johnson Controls Authorized
personnel. If the switch is set to the ON position before
commissioning then it must be reported to Johnson
Controls, otherwise the warranty may be invalidated.
Remote Start/Stop
Remote Start and Stop is accomplished by a contact
placed between Terminals 13 and 51 on the CTBl ter-
minal strip. If this function is not utilized, the terminals
must be jumpered for the chiller to run.
