Required Flow-Sensing Devices; Water Flow Detection Controller And Sensor-Ifm Efector - Trane CVHH CenTraVac Installation, Operation And Maintenance Manual

Install a strainer in the entering side of each piping
circuit to avoid possible tube plugging in the chiller
with debris.

Required Flow-Sensing Devices

The ifm efector® flow detection controller and sensor
(refer to "Water Flow Detection Controller and Sensor
—ifm efector," p. 29) is used to verify evaporator and
condenser water flows.
If a customer-supplied flow sensing device is used to
ensure adequate chiller flow protection, refer to the
wiring diagrams that shipped with the unit for specific
electrical connections.
Be sure to follow the manufacturer's recommendations
for device selection and installation.
Water Flow Detection Controller and
Sensor—ifm efector
I I m m p p o o r r t t a a n n t t : : Before installing the ifm efector ® flow
detection controller and sensor, use a
marker to draw a line on the probe at 3.5 in.
(8.9 cm) from the end of the probe. Do NOT
insert more than 3.5 in. (8.9 cm) of the
probe length into the pipe. Refer to the
following figure.
Figure 13. Installation of ifm efector® ® flow detection
controller and sensor
Installation
1. Install adapter (A) into pipe.
2. Mount ow probe (B) into adapter (A).
3. Install DIN rail (F) into control cabinet.
4. Install control monitor (C) onto DIN rail (F).
Use a marker to draw a line
5. Connect cable (E) to ow probe (B), (hand tighten only).
on the probe at 3.5 in. (8.9 cm)
6. Wire cable in combicon connectors (D) according to
wiring diagram.
from the probe end.
7. Wire relay outputs for ow, wire-break, and/or
temperature monitoring, according to wiring diagram.
To wire the ow monitoring
L
and wire-break monitoring
AC
Jumper N
relay outputs in series, use
the wiring diagram at right.
Flow monitoring
Jumper
Wire break monitoring
Temperature monitoring
Power-on delay time
Do NOT insert more than
Selection liquid / gas
Output to
control cabinet
3.5 in. (8.9 cm) of the
Temperature monitoring can
also be incorporated using
terminals 10, 11, and 12.
probe length into the pipe.
1. Mount the 1/2-in. NPT adapter in a horizontal or
vertical section of pipe. The maximum distance
CVHH-SVX001G-EN
If factory-provided,
located in control panel.
Components:
A. E40174 – 1/2" NPT adapter (for ow probe)
B . SF6200 – Flow probe
C . SN0150 – Flow control monitor
D. E70231 – Combicon connectors (quantity 5)
4
E . E10965 – Micro DC cable, 10m length, PUR jacket
F. F53003 – Din rail, 40mm length
3
2
1
I I n n s s t t a a l l l l a a t t i i o o n n : : W W a a t t e e r r P P i i p p i i n n g g
from the control panel must not exceed 29.5 ft (9 m)
(see item labeled "1" in the preceding figure). Allow
at least five pipe diameters straight run of pipe
upstream of the sensor location, and three pipe
diameters straight run of pipe downstream of the
sensor location.
N N o o t t e e : : In the case of a horizontal pipe, mounting the
sensor in the side of the pipe is preferred. In
the case of a vertical pipe, mounting the
sensor in a place where the water flows
upwards is preferred.
N N O O T T I I C C E E
O O v v e e r r t t i i g g h h t t e e n n i i n n g g ! !
D D o o n n o o t t e e x x c c e e e e d d t t o o r r q q u u e e s s p p e e c c i i f f i i c c a a t t i i o o n n s s a a s s i i t t 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 e e q q u u i i p p m m e e n n t t d d a a m m a a g g e e . .
2. Insert the flow sensor probe (see item labeled "2"
in the preceding figure) through the 1/2-in. NPT
adapter so that 3 to 3.5 in. (7.6 to 8.9 cm) of the
probe's length extends into the pipe. Tighten the 1/
2-in. NPT adapter as needed to prevent leakage and
keep the probe from backing out under pressure.
D D o o N N O O T T e e x x c c e e e e d d 4 4 0 0 f f t t · · l l b b ( ( 5 5 4 4 . . 2 2 N N · · m m ) ) o o f f t t o o r r q q u u e e o o n n
t t h h e e f f i i t t t t i i n n g g . . S S e e n n s s o o r r d d a a m m a a g g e e c c a a n n o o c c c c u u r r i i f f i i t t i i s s
o o v v e e r r t t i i g g h h t t e e n n e e d d . .
N N o o t t e e : : When installed, the tip of the ifm efector ®
sensor probe must be at least 1 in. (2.54 cm)
away from any pipe wall. Do NOT insert more
than 3.5 in. (8.9 cm) of the probe length into
the pipe.
3. Install the Micro DC Cable by inserting it through
the wire openings on the back side of the control
panel (see item labeled "3" in the preceding figure).
Install the supplied Micro DC Cable (29.5 ft [9 m] in
length) to the Flow Probe and hand-tighten the
connector nut.
4. Plug the other end of the Micro DC Cable into the
Flow Control Monitor with the Combicon connector
(see item labeled "4" in the preceding figure). Refer
to the following figure for cable wiring.
N N O O T T I I C C E E
D D o o N N o o t t A A p p p p l l y y E E l l e e c c t t r r i i c c a a l l P P o o w w e e r r t t o o a a
U U n n i i t t i i n n a a V V a a c c u u u u m m ! !
F F a a i i l l u u r r e e t t o o f f o o l l l l o o w w i i n n s s t t r r u u c c t t i i o o n n s s b b e e l l o o w w 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 m m o o t t o o r r a a n n d d c c o o m m p p r r e e s s s s o o r r d d a a m m a a g g e e . .
D D o o n n o o t t a a p p p p l l y y e e l l e e c c t t r r i i c c a a l l p p o o w w e e r r t t o o a a m m o o t t o o r r i i n n a a
v v a a c c u u u u m m . .
F F o o r r u u n n i i t t s s w w i i t t h h i i n n s s i i d d e e - - t t h h e e - - d d e e l l t t a a s s o o l l i i d d s s t t a a t t e e
s s t t a a r r t t e e r r s s , , 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 t t o o u u n n i i t t d d u u r r i i n n g g
e e v v a a c c u u a a t t i i o o n n o o r r w w h h e e n n t t h h e e u u n n i i t t i i s s i i n n a a d d e e e e p p
v v a a c c u u u u m m . . I I n n a a d d d d i i t t i i o o n n , , o o n n u u n n i i t t s s w w i i t t h h i i n n s s i i d d e e - - t t h h e e - -
d d e e l l t t a a s s o o l l i i d d s s t t a a t t e e s s t t a a r r t t e e r r s s , , a a l l l l p p o o w w e e r r t t o o t t h h e e u u n n i i t t
m m u u s s t t b b e e d d i i s s c c o o n n n n e e c c t t e e d d p p r r i i o o r r t t o o e e v v a a c c u u a a t t i i n n g g t t h h e e
u u n n i i t t a a s s l l i i n n e e p p o o w w e e r r i i s s d d i i r r e e c c t t l l y y a a p p p p l l i i e e d d t t o o t t h h e e
m m o o t t o o r r t t e e r r m m i i n n a a l l s s 4 4 , , 5 5 , , a a n n d d 6 6 . .
29