(c) After unit reaches governed
circuit breaker CB6. Using a voltohmmeter set at 300
vac, check for voltage at each of the two water line
speed, actuate switches as indicated below in the
heater receptacles J72 and J73 (pin C to pin D). Meter
sequence as listed.
shall indicate approximately 120 volts, L-N, at each
Master switch to RUN.
receptacle.
400 Hz output contactor switch to RESET-CLOSE.
(14) With unit operating and mode-select
60 Hz load contactor switch to CLOSE.
switch in OFF position, actuate 400 Hz main contactor
400 Hz main contactor to CLOSE.
switch to CLOSE position and proceed as follows.
Unit shall continue to run from unit battery and load
(a) Actuate remote operation switch to
contactor shall stay closed without interruption of power.
OPERATE-RESET. Check phase rotation at each of
(9) Check unit capability for achieving
the remote output receptacles. Phase sequence shall
successful starts with the following battery arrangement.
be L1, L2, L3, N: A, B, C, E and D is +24 vdc. Voltage
Note.
Ascertain unit has started from unit battery
shall be 120 volts L-N and 24 vdc from pin D and
before performing this test. Disconnect battery within
ground.
the unit. External battery must have a full charge with
(b) Rotate mode-select switch to
25.5 vdc minimum.
VENT position. Vent fans, as set on the vent-select
(a) Connect dc battery cable to
switch, shall run. Voltage at remote receptacles shall be
external battery, with reverse polarity to power output
the same as in paragraph f. step ( 14), (a)above.
panel receptacle. Reverse polarity light shall glow.
(c) Rotate mode-select switch to
With battery still connected with reverse polarity,
HEAT and COOL. No voltage shall be available at the
attempt to start unit. Unit shall not start.
remote output receptacles.
(b) Connect dc battery cable to
(d) Where two units are available at
external battery with correct polarity. Reverse polarity
test site, attach a 400 Hz auxiliary power output cable to
light shall not glow and unit shall start.
remote power-output receptacle on operating unit to
(c) Connect an external 24 Vdc
remote input on non-operating unit. Actuate remote
battery to power-out panel receptacle with unit battery
operation switch on operating unit to OPERATE-
connected. Start unit. External battery voltage must be
RESET, then actuate remote-operation switch on non-
one volt higher than unit battery.
operating unit. Vent fans on non-operating unit shall
(10) With unit operating, actuate 400 Hz
operate as if unit were operating. Check vent fan
main contactor switch to CLOSE and 400 Hz output
operation through each output.
switch to RESET-CLOSE. Push in 400 Hz convenience
(e) When two units are not available,
receptacle circuit breaker. Using a volt-ohmmeter set at
remote input can be checked as follows:
300 vac, check for voltage at each of the two outlets.
1.
Connect a 400 Hz auxiliary
Meter shall indicate approximately 120 volts L-N.
power output cable between test box and remote input
(11) With unit operating, actuate 60 Hz load
receptacle.
contactor switch to CLOSE. Push in 60 Hz convenience
2.
Place
400
Hz
main
receptacle circuit breaker. Using a voltohmmeter set at
contactor switch in OPEN position.
30.0 vac, check for voltage at each of the two outlets.
3.
Actuate
remote
switch
Meter shall indicate approximately 120 volts L-N at each
located on test box by placing it in ON position.
outlet.
4.
Actuate
the
remote
(12) Connect a zero to 30 vdc voltmeter
operation switch located on control panel to OPERATE-
across battery terminals.
Observe panel 30-0-30
RESET.
ampere ammeter and log indicated readings on data
5.
Place mode-select switch to
sheet.
Log voltage when battery charger is fully
VENT.
charging (30 amperes) and when battery charger is
6.
Rotate vent-system-select
supplying the unit's rated use. The panel 30-0-30
switch to each position and check for proper operation of
ammeter shall indicate approximately zero amperes.
vent fans.
Battery charger is completely automatic and is current
limited.
Charging current shall be limited to 30
7.
Rotate mode-select switch
amperes. Battery charger output voltage shall not
to HEAT, COOL and OFF. Vent fans shall not operate.
exceed 28 volts when carrying full charge or minimum
(15) With unit operating and mode-select
charge rate. Adjust voltage as required. With correct
switch in OFF position, actuate 400 Hz main contactor
voltage set, adjust current boost and taper charge on K-
switch to CLOSE position and proceed as follows.
R battery charger to maximum cycle time.
Turn
(a) Actuate Output 1 400 Hz auxiliary
adjustment counterclockwise.
operation switch to OPERATE-RESET. Check phase
(13) With unit operating, actuate 400 Hz
rotation at Output 1 receptacle (J101).
main contactor switch to CLOSE and 400 Hz output
switch to RESET-CLOSE. Push in water line heating
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