Starting The Compressor; Starting 27.5 To 35 Ton Standard; Efficiency Units - Trane Voyager Commercial Installation, Operation And Maintenance Manual

W W A A R R N N I I N N G G
L L i i v v e e E E l l e e c c t t r r i i c c a a l l C C o o m m p p o o n n e e n n t t s s ! !
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 a a l l l l e e l l e e c c t t r r i i c c a a l l s s a a f f e e t t y y p p r r e e c c a a u u t t i i o o n n s s
w w h h e e n n e e x x p p o o s s e e d d t t o o l l i i v v e e e e l l e e c c t t r r i i c c a a l l c c o o m m p p o o n n e e n n t t s s 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 . .
W W h h e e n n i i t t i i s s n n e e c c e e s s s s a a r r y y t t o o w w o o r r k k w w i i t t h h l l i i v v e e e e l l e e c c t t r r i i c c a a l l
c c o o m m p p o o n n e e n n t t s s , , h h a a v v e e a a q q u u a a l l i i f f i i e e d d l l i i c c e e n n s s e e d d e e l l e e c c t t r r i i c c i i a a n n
o o r r o o t t h h e e r r i i n n d d i i v v i i d d u u a a l l w w h h o o h h a a s s b b e e e e n n p p r r o o p p e e r r l l y y t t r r a a i i n n e e d d
i i n n h h a a n n d d l l i i n n g g l l i i v v e e e e l l e e c c t t r r i i c c a a l l c c o o m m p p o o n n e e n n t t s s p p e e r r f f o o r r m m
t t h h e e s s e e t t a a s s k k s s . .
H H I I G G H H V V O O L L T T A A G G E E I I S S P P R R E E S S E E N N T T A A T T T T E E R R M M I I N N A A L L
B B L L O O C C K K H H T T B B 1 1 O O R R U U N N I I T T D D I I S S C C O O N N N N E E C C T T S S W W I I T T C C H H . .
3. Remove the mist eliminator retainer bracket and the
mist eliminators from the fresh air hood.
4. Remove the five (5) screws in the top and bottom of
each fresh air damper located inside the hood area.
5. Using the Service Test guide in
p. 74, momentarily jump across the test terminals
one time for constant volume applications, or three
Table 65. Damper adjustment
Damper Opening (in.)
Damper #1 Damper #2
2 0
4 0
6 0
8 0
10 0
10 2
10 4
10 6
10 8
10 10

Starting the Compressor

Optional service valves must be fully opened before
startup (suction and discharge line).
N N o o t t e e : : Suction and discharge service valves are
standard on high efficiency units and 40-50T
standard efficiency constant volume units.
N N O O T T I I C C E E
C C o o m m p p r r e e s s s s o o r r F F a a i i l l u u r r e e ! !
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 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
c c o o m m p p r r e e s s s s o o r r f f a a i i l l u u r r e e . .
U U n n i i t t m m u u s s t t b b e e p p o o w w e e r r e e d d a a n n d d c c r r a a n n k k c c a a s s e e h h e e a a t t e e r r s s
e e n n e e r r g g i i z z e e d d a a t t l l e e a a s s t t 8 8 h h o o u u r r s s B B E E F F O O R R E E c c o o m m p p r r e e s s s s o o r r s s
a a r r e e s s t t a a r r t t e e d d . .
RT-SVX34R-EN
, p. 68 — Table 46,
Return Air Static Pressure - Inches w.c.
-0.20 -0.40 -0.60
430 590 725
780 1080 1330
1185 1620 1990
1530 2110 2600
1930 2655 3270
2295 3165 3910
2660 3650 4510
3010 4150 5130
3345 4600 5680
3690 5125 6350
consecutive times for a variable air volume
application, to start the Minimum Ventilation Test.
6. With the supply fan "On" and rotating in the proper
direction, measure the return duct static pressure.
7. Using Table 65, p. 89, enter the desired amount of
fresh air and the return air static pressure reading to
obtain the proper damper opening dimension.
8. Loosen the adjustment screws on each side of the
damper and slide it downward to the required
opening.
9. Tighten the adjustment screws and re-install the
mist eliminators and the mist eliminator retainer
bracket.
10. Open the main power disconnect or the unit
mounted disconnect switch to shut the unit off and
to reset the RTRM.
11. Before closing the disconnect switch, ensure that
the compressor discharge service valve(s) and
suction service valve(s) are backseated.
-0.80 -1.00
840 950
1545 1730
2300 2575
3025 3390
3800 4250
4545 5095
5255 5905
5965 6690
6610 7410
7395 8295

Starting 27.5 to 35 Ton Standard

Efficiency Units

Install a set of service gauges onto the suction and
discharge service ports. To start the compressor test,
close the main power disconnect switch or the unit
mounted disconnect switch.
Jump across the "Test terminals" on LTB1 or toggle
the test switch three consecutive times if it is a constant
volume application, or five times if it is a variable air
volume application for two to three seconds per jump.
Refer to , p. 68 - Table 46, p. 74
sequence.
S S t t a a r r t t u u p p
-1.20 -1.40 -1.60
1040 1120 740
1890 2035 2170
2815 3030 3240
3705 3985 4240
4650 5005 5345
5575 6010 6415
6480 6995 7470
7330 7900 8440
8120 8765 9365
9075 9775 10420
for the Cooling Test
89