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SECTION 4 - INSTALLATION
VARIABLE PRIMARY FLOW
Quantech recommends a maximum 10% per minute
flow rate of change, based on design flow, for variable
primary flow applications. Provide 8 to 10 gallons per
chiller ton (8.6 to 10.8 liter per cooling KW) system wa-
ter volume. Insufficient system volume and rapid flow
changes can cause control problems or can even cause
chiller shutdowns. There are many other design issues
to evaluate with variable primary flow systems. Consult
your Quantech Sales Representative for more informa-
tion about successfully applying QTC4 chillers.
CONNECTION TYPES AND SIZES
For connection sizes relevant to individual models, re-
fer to SECTION 5 - TECHNICAL DATA.
EVAPORATOR CONNECTIONS
Standard chilled liquid connections on evaporators are
of the Victaulic Groove type.
FIGURE 11 - VICTAULIC GROOVE
40
TABLE 3 - EVAPORATOR CONNECTIONS DIMEN-
SIONS
FRAME COND.
150
165
175
185
185
185
175
210
210
210
230
240
240
260
270
270
270
270
290
300
300
310
315
320
330
340
340
LD10494
370
370
370
400
405
410
410
450
490
460
470
480
500
* Reference Figure 12 on Page 41 for flange dimensions.
ISSUE DATE: 4/2/2018
VICTAULIC
EVAP.
CONNECTIONS
SIZE
S
B
6"
H
B
6"
P
C
6"
S
A
6"
H
A
6"
P
B
6"
C
C
6"
S
A
6"
H
C
6"
P
C
6"
S
B
6"
H
C
6"
P
C
6"
S
B
6"
C
D
6"
S
D
6"
H
E
8"
P
E
8"
H
E
8"
S
C
6"
H
C
6"
P
E
8"
P
E
8"
S
E
8"
S
C
6"
S
E
8"
H
E
8"
P
J
8"
S
F
8"
H
J
8"
P
J
8"
S
H
8"
H
H
8"
P
J
8"
S
G
8"
H
J
8"
S
G
8"
C
K
8"
C
J
8"
S
J
8"
FORM QTC4-NM1
NOMINAL
DIAMETER
DN150
DN150
DN150
DN150
DN150
DN150
DN150
DN150
DN150
DN150
DN150
DN150
DN150
DN150
DN150
DN150
DN200
DN200
DN200
DN150
DN150
DN200
DN200
DN200
DN150
DN200
DN200
DN200
DN200
DN200
DN200
DN200
DN200
DN200
DN200
DN200
DN200
DN200
DN200
DN200
QUANTECH
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