Trane Voyager Commercial, Инструкция по установке, эксплуатации и обслуживанию

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74 RT-SVX34R-EN
Table 46. Test mode states for SZ VAV units with modulating hot gas reheat and modulating heat
TEST
STEP
MODE FAN
VFD
COMMAND ECON
COMP
1
COMP
2
COMP
3
HEAT
OUTPUT
PUMP-
OUT
COOL
VALVE
RE-
HEAT
VALVE
1 FAN ON ON
45% (0
VDC)
MIN OFF OFF OFF 0% OFF 100% 0%
2
ECONO-
MIZER
ON
45% (0
VDC)
OPEN OFF OFF OFF 0% OFF 100% 0%
3 COOL 1 ON
80% (6.67
VDC)
MIN ON OFF OFF 0%
IN-
CON-
TROL 100% 0%
4 COOL 2 ON
IN-
CONTROL
MIN ON ON OFF 0%
IN-
CON-
TROL 100% 0%
5 COOL 3 ON
IN-
CONTROL
MIN ON ON ON 0%
IN-
CON-
TROL 100% 0%
6 REHEAT ON
73% (5.24
VDC)
MIN ON ON ON 0%
IN-
CON-
TROL 50% 50%
7 HEAT 1 ON
100% (10
VDC)
MIN OFF OFF OFF 50% OFF 100% 0%
8 HEAT 2 ON
100% (10
VDC)
MIN OFF OFF OFF 100% OFF 100% 0%
9 RESET
Notes:2 & 3 stage standard efficiency units (excluding 40-50T Std Efficiency CV):
1 . For Traditional VAV units, the VFD Command when “In-Control” will be controlled based on Supply Air Pressure Requirements. For SZ VAV
units, the VFD Command will be at discrete points during Test Mode.
2 . For 27.5-35T units, both compressors will be energized during the Cool 2 Step. For 40-50T units, only Compressor 2 will be energized during
the Cool 2 Step.
3 . The Reheat Pumpout relay will be energized any time the Reheat circuit is energized in active Cooling Mode.
4 . For units with Statitrac installed, the Exhaust Damper will track the Economizer position during Service Test Mode and the Exhaust Fan will be
energized once the Economizer rises above the Exhaust Enable Setpoint.
Notes:5 stage high efficiency units (including 40-50T Std Efficiency CV):
1 . Compressor 1 is the smaller compressor on the circuit.
2 . Condenser fans are controlled as defined for normal operation.
3 . Exhaust fan operates as defined for normal operation based on economizer position.
4 . When Compressor 1 is energized with either C1, C2, or with both for 30 minutes continuously, C3 will be required to de-energize for 30
seconds.
Verifying Proper Fan Rotation
W WA AR RN NIIN NG G
R Ro otta attiin ng g C Co om mp po on ne en nttss!!
F Fa aiillu urre e tto o d diisscco on nn ne ecctt p po ow we err b be effo orre e sse errv viicciin ng g cco ou ulld d
rre essu ulltt iin n rro otta attiin ng g cco om mp po on ne en nttss ccu uttttiin ng g a an nd d sslla assh hiin ng g
tte ecch hn niicciia an n w wh hiicch h cco ou ulld d rre essu ulltt iin n d de ea atth h o orr sse erriio ou uss
iin njju urry y..
D Diisscco on nn ne ecctt a allll e elle eccttrriicc p po ow we err,, iin nccllu ud diin ng g rre em mo otte e
d diisscco on nn ne eccttss b be effo orre e sse errv viicciin ng g.. F Fo ollllo ow w p prro op pe err
llo occkko ou utt//tta ag go ou utt p prro occe ed du urre ess tto o e en nssu urre e tth he e p po ow we err
cca an n n no ott b be e iin na ad dv ve errtte en nttlly y e en ne errg giizze ed d..
Using , p. 68 to Table 46, p. 74 as a reference,
momentarily jump across the test terminals to start the
Minimum Ventilation Test.
The Exhaust Fan will start anytime the economizer
damper position is equal to or greater than the exhaust
fan setpoint.
The economizer will drive to the minimum position
setpoint, exhaust fans may start at random, and the
supply fan will start.
Once the supply fan has started, check for proper
rotation. The direction of rotation is indicated by an
arrow on the fan housing.
If the fan is rotating backwards, open the main power
disconnect switch upstream of the unit terminal block
or the unit factory mounted disconnect switch.
W WA AR RN NIIN NG G
H Ha azza arrd do ou uss V Vo olltta ag ge e!!
F Fa aiillu urre e tto o d diisscco on nn ne ecctt p po ow we err b be effo orre e sse errv viicciin ng g cco ou ulld d
rre essu ulltt iin n d de ea atth h o orr sse erriio ou uss iin njju urry y..
D Diisscco on nn ne ecctt a allll e elle eccttrriicc p po ow we err,, iin nccllu ud diin ng g rre em mo otte e
d diisscco on nn ne eccttss b be effo orre e sse errv viicciin ng g.. F Fo ollllo ow w p prro op pe err
llo occkko ou utt//tta ag go ou utt p prro occe ed du urre ess tto o e en nssu urre e tth he e p po ow we err
cca an n n no ott b be e iin na ad dv ve errtte en nttlly y e en ne errg giizze ed d.. V Ve erriiffy y tth ha att n no o
p po ow we err iiss p prre esse en ntt w wiitth h a a v vo ollttm me ette err..
S Stta arrttu up p