Note: Descriptions are shown in the official language in which they were submitted.
WO~3/14353 ~ 2 7 1 2 9 PCT/U~93/0016
Title: Portable Dehumidif;er
Rela~d Application:
This application is a continuation-in~part of United
States Patent Application Serial ~o. 07~8l7,940, filed
January 8, l992, now abandoned.
Backgr~und of the Inven~ion: .
Th~ present invention relates generally tu air
conditioning apparatus and more particularly to electrically
actuated dehumidifiers.
Conventional dehumidifiers are ~quipped with relatively
heavy operative components, such as an evaporator coil, a
condenser, a compres~or and a fan motor. Typically, these
components are mounted upon internal support members and are
surrounded by one or more e~ternal panels or shells. There
are several shortcomings or drawbacks to the manner in which
the fun~tional com~onents, internal supports and e~ternal
coverin~s of dehumidifiers have been designed in the past.
First, the support mem~ers were usually formed from a
plurality of metal components which required considerable
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assembly time, were ~ubject to corrosion, were electrically
conductive and permitted water ~o pass through gaps
therebetween. The lack of unity in the internal support
structure resulted in one or more of the inte~nal support
members being affi~ed to an e~terior coYer member. Upon
removing the e~terior cover member, the support member
attached thereto, as well as any components carried by the
support member, would separate from the other internal
structures, thereby making it difficult to operate or test
the various operative components when the e~terior covers
were removed. Also, previous support assemblies did not
pxovide substantia~ separation betwle~n the water collecting
components and the relatively high voltage components of the
dehumidifier and thus did not reduce the possibility of
electrical damageO
During the dehumidifying proce~s, ice collects on the
evaporator fins and coils. Typically, the compressor is
turned off before air flow throu~h the evaporator is
substantially impeded by the ice. A d~frost cycle is
pro~ided wherein the fan i~ on, the compressor is off and
relatively warm air passes through the evaporator to thaw the
ice. In the past, the defrost cycle was initiated when the
evaporator reached a selected low temperature, such as 27 F,
and ended at a selected high temperature~ such as 37 F. At
that point, the compressor resumed operation, if the desired
humidity level had not been reach~d. A~ a result, there was
a tendency in hi~h hurnidity ~nvironments for the compressor
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W093/14353 2 ~ 2 7 ~ 2 ~ P~T/US93/0~165
to cycle on and off a great deal, thereby reducing the useful
li~e of this critical component.
Portable dehumidifi~rs are, by virtue of their
portability, subject to Certain drawbacks or'considerations
that are less significant in standard sized dehumidifiers.
One of the most important considerations is the presence of
the portable dehumidifier in living areas which would be
stalned or otherwise damaged if water is spilled. The water
receptacle in a portable dehumidifier is typically smaller
than the one in a standard unit and is likely to require more
frequent emptying. To do so, the user must carry the full
receptacle acro~s flsorin~, carpeting and furniture to a
sink, bath tub or other drain site. In previous portable
dehumidifiers, a relatively large opening was provided at the
top of the receptacle or receiving the condensate from the
evaporator coils. ~s a result, removing and caxryîng the
full receptacle to the drain without spilling water was
difficult.
Another concern, particularly - with portable
dehumidiiers, was the possibility of the appliance operating
when the water receptacle was full or out of place and the
attendant damage to the surroundin~s caused by water ~eeping
from the appliance. To prevent this problem, previous
dehumidifiers were provided with float switches and/or sight
gauges for sensing or determining the water level in the
receptacle. Typically, the sight gauge was located close to
t-he base of the dehumidifier, making it difficult to read if
S llB~i;TlTlJTE SHEEl~
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the applian-~e was on the floor. The conventional float
switch tended to become inaccurate over time and, in any
event, provided no indication that the re eptacle was
approaching ma~imum Capacity until that poin~~was reached.
Thus, no warning was provided to a user who, e~pecting the
dehumidifier to operate during an e~tended absence, left the
premises shortly before the float switch turned the
dehumidifier off.
Another significant consideration in designing a !portable
dehumidifier is providing a stable and secure handle. In the
past, hanclles have been supported only by the e~ternal shell
of the appliance. This arrangement required the external
shell to be strengthened in some fashion so that it could
support the relatively heavy operative components housed
thexein. ThiS strengthening inevitably resulted in increased
cost. Occ:asiorl~lly, more lthan one handle was prsvided so
that the weight of the appliance would be divided between
relatively opposing points on the outer shell. This
arrangement, howe~er, requi:red the user to employ bot:h hands
when carrying the dehumidif ier, without eliminatiny the need
for the sh~ll to be capable of ~earing a substantial portion
of the loal~.
Since they are intended for use in living areas, portable
dehumidifil3rs are more like:Ly than standard size units to b~
placed b~side a wall or furniture. Typically, a single area
on convent:ional dehumidifi~rs was provided for air outlet
louvers . As a result, it was f requently impossible to place
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the appliance in a dPsirec~ position because the f].ow of
dehumidified air would be impeded, thereby reducing the
efficiency of the unit.
Summary and Obiects of the Invention:
The present air conditioning apparatus was invented in an
effort to eliminate or substantially reduce the
above-described drawbacks and limitations of previous
porta~le dehumidifiers. In doin~ so, the present inventors
employed the followinq components in devising their new
electrically powered air conditioning apparatus; namely, a
removable water receptac1e, a condensex, an evaporator, a
fan, a fan motor, a compressor, a humidity sensor, a
temperature sen~or, an electrical circuit e~tending between
the ele~trically actuated components, a circuit control
devic , a pair of exterior half-shel1s and a handle di~posed
on at least one of th2 e~terior half-shells. The present
inventivn represents an improvement which basically
compri~es: 8 mounting member formed with a general1y
horizontally disposed base adapted to receive the exterior
half-she~ls, the water receptacle and the compressor and with
a partition wall e~tending generally vertically from the
base, said partition wall having a lower portion which
separates the base into a water receptacle area and a
compressor area and which defines a substantially impermeable
barrier to the movement of water ther~between, an
intermediate portion adapted to carry the condenser, the
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evaporator, the fan and the fan motor, and an upper portion
adapted to support the handle. In addition, the present
invention preferably includes the following features: the
above-described mounting member is unitaril~ molded from
synthetic resin material; a detection device is provided to
generate signals corresponding to selected intermediate and
maximum water levels in the water receptacle; a clock device
is connected to the circuit control device with the circuit
control device being responsive to the temperature sensor and
the clock device to maintain operation of the compressor for
a selected period of time after a selected low temperature is
reach~d; at least two subst~ntially spaced apart air outlets
are provided on one of the e~terior half-shells for
e~hausting the air in at least two substantially different
directions; and a substantially restricted opening is
provided in the water r~ceptacle for receiving and
~ischaryi11g water.
Impor1:ant object~ of the pr~sent invention are as
follows: to provid~ a dehumidifier with an internal support
member by which the dehumidifier may be carried; tQ provide a
dehumidifier which may be operated during production and~or
m~intenance with the external covers removed; to eliminate or
substantially reduce corxosion and the possibility of short
circuitin~ caused by water reachin~ electrical components,
and particularly high voltage electxical components; to
permit the dehumidifier to be placed in close pro~imity to
walls, furniture and other objects without hindering the flow
SUBSTITUTE SHEEr
WO 93J14353 h ~ ~, 7 ~ 2 u~ PCTJUS93~00165
of air through the dehumidifier; to eliminate or
sub~tantially reduce the likelihood of spillage from the
water reservoir to provide the user with an indication when
the water receptacle is nearly full; and ~o improve the
efficiency and life of the compressor. The foregoing objects
and advantayes of the present invention, as well as others,
may be more readily understood in view of the following
drawings and detailed description of the preferred embcdiment.
Brief Description of the Drawin~s:
FIG. 1 is a front elevational view of a portable
dehumidifier according to th~ present invention;
FIG. 2 is a top plan view thereof; -~
FIG. 3 is a side elevational view thereof;
FIG. ~ is a bottom plan view thereof; ~.
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a vertical sectional view of the present
portable dehumidifier particularly illustrating the internal
support member and the positioning of various electrically
powered components (in diagramma~ic fashion) thereon;
FIG. 7 is perspectiv~ of the internal mountin~ member and
the water receptacle detection armature;
FTG. 8 is a vertical secti.onal view of the float assembly
in the water receptacle;
FIGS. 9A-9D are diagrammatic views of the operation of
the water receptacle detection device;
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7 ~ 8
FIG. 10 is a wiring diagram of the high voltage power
~ircuit board; and
FIG. 11 is a wiring diagram of the low voltage control
circuit board. ~~~~
~De~ail~d Description of the Preferred Embodimen~:
As particularly illustrated in FIG. 6, the present
portable dehumidifier, generally designated 20, is equipped
with several operative internal components, namely, a .. -
compressor 21, a fan 22, a fan motor 23, a condenser 24, an
evaporator coil unit 25, a removable water receptacle 26, an
electrical inlet 27 and associated electrical conductors (not
shown), a low voltag2 control circuit board 28 (FIG. 11), a ~.:
high voltage power circuit board 29 ~F~G. 10), a humidity
sensor 30 and a temperature ~ensor IBl~ The specifications
for some of these components are as follows: input voltage
and fr~quency: 198 to 264 V~C RMS, 47-63 Hz; the compressor
has a full loan amps (FLA) rating of 1.5 amps at 220~240 VAC
and ma~imum inductive startup current of 12.4 amps. The fan
motor has an FLA rating of .24 amps at 220/240 VAC. The
compressor is of the reciprocating motor type, resistance
start, induction run.
The control circuit board 28 is provided with a series of
light-emitting diodes ~LEDs) which are visible through a
touch panel 31 ~FIG. 2~ mounted on an upper exter~or surface
of the dehumidifier. LED 32 flashes on and of~ when the
water level in the receptacle 26 reaches B0% capacity and
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remairls constantly on when the receptacle 26 is completely
full. LED 33 is illumillated when the defrost cycle is on.
LED 34 is illuminated when the fan is operating at high speed
and the compressor is off. LED 35 is illumi~ed when the
fan is operating at low spePd and the compressor is on. LED
36 is illuminated when the fan is operating at high speed and
the compressor is on. LED 37 is illuminated when a 30%
relative humidity level is selected. LEDs 38-41 are
illuminated when 40, S0, 60, and 70~ relative humidity levels
are respectively selected. Switch 42 controls the
fan/compressor selections i~dicated by LED's 34-36. Switch
43 controls the humidity level selections indicated by LED's
37-41. Switch 4~ turns the present dehumidifier on and off.
As i~dicated in FIGS. 6 and 7, a unitary molded mountiny
member ~5 is formed with a generally horizontal bas~ portion
46 and a generally vertical partition wall 47. A front
e~t~rior half-shell 48 (FIGS. 1, 3, ~) is removably mounted
on the base portion ~6 and is formed with a movable access
panel 49 and with an air inlet 50. An upper corner portion
51 on the front shell 48 is removable therefrom and is
attached to an air filter 52 slidably mounted in grooves on
opposite inner surfaces on the front shell. A rear e~teriox
half-shell 53 (FIGS. 3, 5, 6) is removably mounted on the
base 46 and is provided with substantially spaced apart air
outlets 54, 55, 56, which direct the e~haust air in
substantially diff~rent directions. An inwardly projecting
handle S7 (FIGS. 5, 6) is formed in an upper portion of the
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e~ternal half-shell for insertion into a handle-supporting
caYity 58 (FIGS. 6,7) formed in an upper portion 59 of the
partition wall 47. The mounting member 45 and the front and
rear half-shells 48 and 53 are integrall~ molded from
synthetic resin material.
As indica~ed in FIGS. S and 7, the base 46 is adapted to
receive the front and rear shells 48, 53, the water
raceptacle 26 and the compressor 21. A lower portion 60 of
the partition wall 47 separates the base i.nto a water ~:
receptacle area ~1 and a compressor area 62 and defines a
substantially impermeable barrier to the movement of water
between these areas 61, 62. An int:ermediate portion 63 of
the partition wall 47 is adapted to carry the conden~er 24,
~vaporator 25, fan 22, and fan motor ~-3. Advantageously, the
evaporator 25 is mounted on a drip pan 64 which is secured to
the intermediate portion 63 of the partition wall. The drip
pan is molded from synthetic resin material and is integrally
formed with an apertured draîn trough 65. .
The water receptacle 26 is blow-molded $rom synthetic
resin material and is removably mounted in an inwardly
projecting shelf 66 on the front access panel 49. The
recep~acle is formed with a su~stantîally restricted opening
67 for rec~iving and dispensin~ water. The opening 67 is
provided in the upper surface of the receptacle and is
position~d so that it is directly below the apertured drain
trough 65 when the front a~c~ss panel 49 is closed.
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The upper surface of the water receptacle 26 îs formed at
an end opposite the water-receiving opening 67 with a second
aperture adapted to receive a float assembly 68. As
indicated in FIG. 8, the float assembly ~8- includes a
water-permeable cage or sleev~ 69 and a 10at 70 made of a
buoyant material such as styrofoam. The cage 69 çonsists of
a generally circular floor and a generally cylindrical wall,
each having pores or voids therein to allow water to
penetrate the cage 69. The wall has a lip 71 that overhangs
the outer edge of the second aperture in the receptacle 2~ to
secure the cage in a desired position. The float 70~ which
is generally bullet-shaped, is vertically movable within the
cage 69 in response to the water level in the reservoir. A
xelatively wide circumferential groove is formed in the outer
surface of the float 70; and an inwardly projecting, circular
groove-engaging lip is formed in the sleeve to prevent the
float from escaping.
As indicated in FIGS. 7 and 9A-9D, an armature 72 is
pivotally mounted on the partition wall 47. The armature
includes a forwardly projecting finger 73 which is disposed
to engage the float 70 when the water receptacle is in place
(FIG. 9B). Three electronically detectable members, 74A-C,
preferably magnets, are disposed in spaced relation to one
another on the armature 72 and the finger 73. A pair of
relatively spaced-apart electronic sensors 75, 76, such as
~,;,gnetic reed switches or Hall Effect sensors, are mounted on
the partition wall behind the armatur~ 72. The sensors 75,
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76 are positioned on the partition wall and the ma~nets 74A-C
are positioned on the armature 72 and finger 73 in such a
manner that only one magnet/sensor alignment can occur at any
given time and so that the alignment is ind~cative of the
water level in the receptacle 26 or the position of the
receptacle, as described belQw.
FIG. 9A illustrates the condition in which the receptacle
~6 is either not in place in the access door 49 or the access
door is not completely closedO In either i~stance, the
magnet 74C in the finger 73 is aligned with the upper sensor
7~ and the control circuit 28 will not permit the compressor
to operate.
FIG~ 9B illustrates the condition in whic~ the receptacle
26 is disposed in ~n operative position~ and is either empty
or less than sufficiently full for the water level to reach
the float 70. In this condition, the finger 73 engages the
recessed float 70 and is elevated by the float, thereby
breaking the contact between the finger magnet 74C and the
upper sensor 76. Although the armature 72 is slightly
elevated, neither of the other ma~nets 74A, 74B is aligned
with the lower scnsor 75. The control circuit 28 responds by
no longer impeding the compressor 21.
FIG. 9C illustrates the condition where the water level
77 reaches appro~imately 80 percent of the receptacle's
capacity. In this csndition, the float 70 rises in response
to the ele~ated water level, thereby causing the armature 72
to pivot further upwardly so that the innermost magnet 74A is
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aligned with the lower sensor 75. In this position, the
control circuit causes LED 32 ~FIG. 2) to flash
intermi~t~antly ~ut permits the dehumidifier to continue
operating in its normal mode.
FIG. 9D illustrates the condition in wh;ch the water
level 77 reaches the top of the receptacle 26. In this
situation,~ the float 70 rises to its hi~hest position,
thereby c'ausing the armature 72 to pivot upwardly and align
the inter~ediat~ magnet 74B with the upper sensor 76. In
this posi.tion, the control circuit causes the ~'Reservoir
full" LE~ 32 to light continuously and suppresses the
compressor.
The source code for the control circuit microprocessor
accompa~ies this application and i.s identified as Appendix
A. As indicated diagrammatically in FIGo 6, a temperature
sensor 81 is attached to the evaporator coil 25. A timing
device 77 ~FIG~ 10) is pxovided on the control circuit board
28. The control circuit is programmed so that when the
evaporator coil reaches a selected temper~ture, preferably 27
degrees F, the control circuit initiates the cloek 78~ Once
the clock :has run for a selected period of time, preferably
45 minutesl, the control eircuit stops the compressor 21 while
the fan 22 and its associatecl motor 23 continue to operate in
order to de~frost the evaporator coils 25. During the ~defrost
period, th~ associated LED 33 is illuminated. When the coil
temperature rises to a selected temperature, preferalbly 37
degrees F, the compressor restarts.
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As indicated in FIG. ~, the air outlets 54~56 are
substantially identical in size and shape. A pair of
detachable coverplates 79, 80 are provided and are formed to
provide a snap-fit engagement with portions -of the~ rear
half-shell 53 disposed in ~urrounding relation to the outlets
~4-56.
While a single preferred embodiment of the present
portable dehumidifier has ~een illustrated and described in
some detail, the foregoing specification is not intencled to
unduly limit or restrict the spirit of the invention nor the
scope of the following claims.
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APPENDIX A
* Parallax PIC14C5x Asse~bler v2.û ~*~
2 000- DEYICE PIC14C57
3 000- DEVICE RC-OSC
4 000- DEVICE Wl)T~FF
S 000- DEVICE PROTECT~S)FF
8 ,~ R~g;ste~ Assignments
1 1 ,VALUES
12 THE HIGHER THE HUMIDITY TIIE LOWER THE Cû!JNT
13 IE LOW HUMIDITY-BIG COUNT HIGH HUMIDITY-SMALL COUNT
14 RAISE LOWER RAISE HUMlDITY
R0077 THRESHI EOU119 , 122 ,123 70X HUMIDITY
16 ~007A T13RESH2 EOUlZ2 123 ,128 60% HUMIDITY
17 ~007E THRESH3 EOU126 126 ,129 50% HlJMI~ITY
18 ~0082 THRESH4 EOU.130 , 130 ,130 40% HUMIDITY
19 ~0084 THRESH5 EOU132 , 133 ,131 30% HUMIDITY
21 ,RAM LOCATIONS
22 ~0005 PORT A EOU 5
23 ~0004 PORT B EOIJ 6
24 ~0007 PORT C EOU 7
26 ~0008 OBl EOU 8
27 ~0009 ~B2 EOU 9
28 ~OOOA BITS EOU10
29 *OOOB FAM EOU11
~OOOC HUM~D EOU 12
31 ~ûOOD HUMIDITY EOU 13
32 ~OOOF BLK EOU14
33 ~OOOF TEMP EOU15
34 ~0010 HUMIDITY COUNT EOU 16
36 ~0011 RAM17 EOU17
37 ~0012 RAM18 EOU13
38 ~0013 RAMl9 EOU19
39 ~0014 RAM20 EOU20
4û ~UOl~ l EOU 21
41 ~0016 RAM22 E9U22
i2 ~0017 RAM23 EOU23
43 *001~ RAM24 EOU24
M ~0019 RAM25 0U 25
sOOlA RAM26 EOU26
46 ~OOlB RAM~7 EOll 27
47 ~ODlC RAM28 EOU` 28
48 ~0010 RAM29 EOU29
49 ~001 E RAM30 EOU30
~OOlF RAM31 EOU31
52 , PORT A LINES
53 ~OûOO TEMP 27 EOU O
54 ~OOû 1 TEMP 37 EOU
~0002 BUCKET-DO EOU 2
56 ~OOû3 BUCKET FULL EOU 3
57
58 , PORT ~ LINES
59 ~0000 S~l FAM EOIJ O
~0001 S~ HUMIDITY E9lJ
61 *aoo2 LED RESERVOIR EOU 2
62 ~0002 LED BUCKET EOIJ 2
63 ~0003 LED DEFROST EOlJ 3
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64 ~0004 SCOPE EOU 4
*0005 OUT MOTO~ LO EOU 5
66 ~000~ OUT MOTOR HI EOU 6
67 "0007 OUT COMPRESSOR EOU 7
6~
69 ,PORT C LINES
~0000 LED FAN HIGH EOU O
71 ~0001 LED FAN LOW EOU
72 ~0002 LED FAN ONLY EOU 2
73 *0003 LED 30 EOU 3
74 ~0004 LED 40 EOU 4
~0005 LED 50 EOU 5
76 ~0006 LED 60 EOU 6
77 ~0007 LED 70 EOU 7
78
79 - ORS 00W
~0
81 OOO- START
82 000- 961 CALL IMIT ,IMIT PORTS
83 001- 466 LCF PORT B.LED DEFROST
84
, BCF PORT C.LED 70
86 , GOTO START
87
88 OG2- 9E3 CALL COMPRESSOR ON
~9 , CALL COMPRESSOR OFF
91 003- A93 goto display humidity
92
93 004- 606 BTF9C PORT B.SW FAN ,CHECK IF TEST MODE
94 005- A09 GOTO HERE
006- 626 ~TF9C PCRT B.SW HUMIDITY ,- -
96 007- A09 GOTO HERE
97 008- A93 50TO D~SPLAY HUMIDITY ,BOTH SWITCHES ARE ACTIVE 90 T
98
99 005- HERE ,REPLACE WITH STATUS OF E3PROM
100
101 009- 407 BCF PORT C.LED FAN HIGH ,DEFAULT TO FAN HI~M SPEED
102 OOA- COl MOVLW O0000001D
103 00S- 02B MOVWF FAN
10~
105 00C- 467 BCF PORT C.LED 30 ,DEFAULT TO 30X HUMIDITY LEVEL
106 00D- C01 MOVLW 00000001D
107 OOE- 02C MOW F HUMID
1~8
109
110 00F- MAIN LOOP
111 OOF- 915 CALL CHECK RESERW IR LEVEL
112 010- 925 CALL CHCK FAM SWITCH
113 011- 93C CALL CHECK HUMIDITY SWXTCH
114 012- 9CC CALL CHECK DEFROST TEMPERATURE
115 013- 9C3 CALL CHECK HUMIDITY
116 014- AOF GOTO MAIN LOOP
117
119 ,~ 5U~ROUTINES FOLLOW
121
122 015- CHECK RESERVOIR LEVEL
123 015 665 BTF9C PORT A.BUCKET FULL
124 016- AlD GOTO CRLl ,NO RESERVOIR ISN'T FULL SEE I :~
125 D17- 446 OCF PORT B.LED RESERW IR ,YES RESERVOIR IS FULL TURN O ::
126 018- 9ES CALL COMPRESSOR OFF ,SHUT OFF UNIT
127 019- 9ED CALL MOTOR OFF
128 OlA- 500 RETLM O
129 OlB- CALl
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130 OlB- 546 BSF PORT B.LED RESERVOIR ,TURN OFF RESERVOIR LED
131 OlC- 645 BTFSC PORT A.BUCKET BO ,CHECK IF BUCKET IS STILL 80
132 OlD- 800 RETLW O ,SWITCH OPN SO RETURN
133 OlE- 745 BTFSS PORT A.BUCKET FULL ,CHECK IF BUCKET IS NOW ALL FU
134 OlF- 800 RETLt~l 0
135
136 020- 446 BCF PORT D.LED RESERVOIR ,YES, RESERYOIR IS 80X TURN ON
137 021- 9D5 CALL LONG DELAY BLINK RESERVOIR LED
138 022- 546 BSF PORT D.LED RESERYOIR TURN OFF RESERVOIR LED
139 023- 9D5 CALL LONG DELAY ,BLINK RESERVOIR LED
140 024- A18 GOTO CALl ,LOOP UNTIL~ RESERYOIR IS EMPTI
142 ~*~*~*~**~w~*~*~x~*~x
143
144 025 CHECK FAN SWITCH
145 025- 405 BTFSC PORT B.SW FAN
146 024~ 800 RETLM O
747
148 027- CFSO
149 027- 70B BTFSS FAN.O
150 028- A2E COTO CFSl
151 029- 407 BCF PORT C.LD FAN HIGH
152 02A 547 8SF PORT C.LED FAN ONLY
153 02B- C02 MOVLW OOOOOOlOB
154 02C- 02B MOVWF FAN
155 02B- 800 RETLW O
156
157 02E- CFSl
158 02E- 72B BTFSS FAN.l
159 02F- A35 50TO CFS2
160 030- 427 BCF PORT C.LED FAN LOW
161 031- 507 BSF PORT C.EED FAN HIGH
162 032- C04 MOVLW OOOOOlOOB
163 033- OZB MOVWF FAN
164 034- 800 RETLW O
165
166 035- CFS2
167 035- 74B BTFSS FAN.2
168 036- 800 RETLW O
169 037- 447 BCF PORT C.LED FAH ONLY
170 038- 527 BSF PORT C;LED FAN LOW
171 039- COl MOVLW OOOOOOOlB
172 03A- 028 MOVWF FAN
173 03B- 800 RE~W O
174
175 7111~R~ *11~ ~*RWRllll~llW11~R~ *~111~11~'JI~/tSl-ll~$~flY W~IR~l*#A~ R1~R*t~115t~ **
1~6
177 03C- CHECK HUMIDITY SWITCH
178 03C- 626 ~TFSS PORT B.SW HUMIDITY
179 03D 800 RETLW O
180
181 03E- CHSO
182 03E- 70C BTFSS HUMID.O
183 03F- A45 ~iOTO CHSl
184 040- 467 9CF PORT C.LED 30
185 041- 5E7 BSP PORT C.LED 70
186 042- C02 MOVLW OOOOQO 1 OB
187 043- 02C MOVWF HUMID
188 044- 800 RFTLW O
189
190 045- CHSl
191 045- 72C BTFSS HUMID.l
192 046- A4C liOTO CHS2
193 047- 487 BCF PORT C.LED 40
194 048- 547 BSF PORT C.LED 30
195 049- C04 MOVLW OOOOOlOOB
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WO 93/143S3 ~ 7 1 ~,? ~ PCI`/US93/00165
18
196 04A- 02C MOVWF HUMID
197 04~- BOO RETLW O
198
199 04C- C~S2
200 04C- 74C BTFSS HUMID.2
201 04D- A53 GOTO CHS3
202 04E- 4A7 3CF PORT C.LED 50
203 04F- 587 8SF PORT C.LED 40
204 050- C08 MOVLW OOOOlOOOB
205 051- 02C MOVWF HUMID
206 052- 800 RETLW O
207
208 053- CHS3
209 053- 74C BTFSS HUMID.3
210 054- A5A GOTO CHS4
211 055- 4C7 BCF PORT C.LED 60
212 056- 5A7 85F PORT C.LED 50
213 057- C10 MOVLW OOOlOOOOB
214 058- 02C MOVWF HUMID
215 059- 800 RETLW O
216
217 05A- CHS4
218 05A- 78C BTFSS HUMID.4
219 O5B- 800 RETEW O
220 O5C- 4E7 ~CF PORT C.LED 70
221 05B- 5C7 8SF PORT C.LED 60
222 05E- COl MOVLW OOOOOOOlB
223 05F- 02C MOVWF HUMID
224 040- 800 RETLM O
225
226
227
228 1~ t*R~ R~*RRR~RR*~*~ ~Rlll~*~ *~~ st~R~ *~~ r*~ ty***1~x~ ~x~'<
229
230 040- INIT
231 041- COF MOVLW OOOOllllB
232 042- 005 TRIS PORT A
233
234 063- C03 MOVLW OOOOOOllB
235 064- 006 TRIS PORT B
236 045- CFF , MOV-W OFFH
237 944- 024 MOVWF PORT 8
238
~39 047- COO MOVLW OOOOOOOOB
240 248~ 007 TRIS PORT C
241 049- CFF MOVLW OFFH
242 04A- 027 MOVWF PORT C
243 04B- 800 RETLW O
~ M
245 ~11*~1*1/~R~ ~*~r111*Yl~*~a~l~ ~*llllll~llr*llll~ ~slr*~ *~ *~ r
?46
247 04C- DELAY
248 04C- C03 MOVLW 03H
249 04D- 028 MOVWF DOl
250 04E- DLYl :
251 04E- 069 CLRF D02
252 04F- 2E8 DECFS2 DOl
253 070- A72 GOTO DLY2
254 071- 800 RETLW O
255 072- DLY2
256 072- 2E9 DECFS2 D02
257 073- A72 GOTO DLY2
258 074- A6E GNTO DLYl
259
260 ~ RIl~R~tl*lirRC*~ *~ R*~~ rR~ ~*~ ~r~
261
~13BSTITUTE SHEET
WO 93/14353 2 ~ ~ 7 ~ 2 ~ P~/US93tOOI~
lg
262 075- BLINKS
263 075- COl MOVLW
264 076- lEE ADDWF BLK
265 077- BLK2
266 0~7- 446 BCF PORT B.LED BUBKET
267 078- 9D5 CALL LONG DELAY
268 079 9D5 CALL LONG DELAY
269 07A- 9D5 CALL LDNG DELAY
270 07B- 9D5 CALL LONG DELAY
271 07C- 546 9SF PORT B.LED BUCKET
272 Q7D- 9D5 CALL LONG DELA~
273 07E- 9DS CALL LONG DELAY
274 07F- 9D5 CALL LONG DELAY ~ -
275 080- 9D5 CALL LONG DELAY
276 081- 2EE DECFSZ BLK
277 082~ A77 GOTO BLK2
278 083- 800 RETLW O
279
280 ,~*~*~R~*~*~2~*~*~*~*j*~*
2~1
282 084- BLINK2
283 084- 466 BCF PORT 8.LED DEFROST
284 085- 9D5 CALL LONG DELAY
285 086- 566 BSF PORT B.LED DEFROST
286 087- 9DS CALL LONG DELAY
287 088- 800 RETLW O
288
289
290 ,~A~*~R~*~*~*~*~
291
292 089- TEST TEMPS
293 OB9- 705 BTFSS PORT A.TEMP 27
294 08A- A8F GOTO OFFl
295 08~- 466 BCF PORT 8.LED DEFROST
296
2g7 08C- NEXT LOOP
298 08C- 725 BTFSS PORT A.TEMF 37
299 08D- A91 GOTO OFF2
300 08E- 446 0CF PORT B.LED BUCKET
302
303 08F- OFFl
304 OBF- 544 8SF PORT B.LED DEFROST
305 090- ABC GOTO NEXT LOOP
306
307 091- OFF2
308 091- 546 8SF PORT B.LED BUCKET
309 092- AE9 GOTO TEST TEMPS
311 ,~*~*~R***~ ~*~YU*~#
312
313 093- DISPLAY HUMIDITY
314 093- 041 CLRF RTCC ,CLEAR RTCC REGISTER
315 094- 586 85F PORT B.SCOPE ,SET TEST SIGNAL
316 095- 9D5 CALL LONG DELAY ,DELAY TIME TO SAMPLE RTCC PIN
317 096- 9D5 CALL LONG DELAY ,DELAY TIME TO SAMPLE RTCC PIN
318 097- 9D5 CALL LONG DELAY ,DELAY TIME TO SAMPLE RTCC PIN
319 098- 9D5 CALL LONG OELAY ,DFLAY TIME TO SAMPLE RTCC PIN
320 099- 9D5 CALL LONG DELAY ,DEL~Y TIME ro SAMPLE RTCC PIN
321 O9A- 201 MOVF RTCC.~
322 O9B- 486 ~CF PORT B.SCOPE ,CLEAR TEST SIGNAL
323 O9C- 030 M WWF HUMIDITY COUNT
~24
325 O9D- CFF MOVLW OFFH ,TURN OFF ALL LEDS
326 O9E- 027 MOYWF PORT C
327
SUEI$TITU~F ~;HEET
W 0 93/143S3 2 ~ 2 7 ~ 2 ~ PC~r/U ~93J0016~
328 O9F- C77 M9VLW THRESHl
329 OAO- 090 SU~WF HUMIDITY COUNT.O ,SUB & PUT RESULT IN
330 OAl- 703 aTFSS STATUS O ,TEST FOR rARRY
331 OA2- A93 GOTO DISPLAY HUMIDITY
332 DA3- 4E7 BCF PORT C.LED 70
334 OA4- NEXT2
335 OA4- C7A MOVLW THRESH2
336 OA5- 090 SU8WF HUMIDITY COUNT.O ,SUB & PUT RESULT IN
337 OA6- 703 8TFSS STATUS.O ,TEST FOR CARRY
338 OA7- A93 GOTO DISPLAY HUMIDITY
339 OA8- 4C7 BCF PORT C.LED 60
340 DA9- SE7 RSF PORT C.LED 70
341
342 OAA- NEXT3
343 OM - C7E MOVLW THRESH3
344 OAB- 090 SU~WF HUMIDITY COUNT.O ,SUB & PUT RESULT IN
345 OAC- 703 BTFSS STATUS.O ,TE~T POR CARRY
346 OAB- A93 GOTO DISPLAY HUMIDITY
347 OAE- 4A7 9CF PORT C.LED 50
348 OAF- SC7 BSF PORT C.LED 60
349 080- 5E7 BSF PORT C.LED 70
350
~51 081- NEXT4
352 081- C82 MOVLW THRESH4
353 082- 090 SUBWF HUMIDITY COUNT.O ,SUB & PUT RESULT IN
354 083- 703 BTFSS STATUS.O ,TEST FOR CAQRY
355 084- A93 GOTO DISPLAY HUMIDITY
356 085- 487 BCF PORT C.LED 40
357 086- SA7 BSF PORT C.LED 50
358 087- SC7 BSF PORT C.LED 60
359 088- SE7 BSF PORT C.LED 70
360
361 089- NEXT5
362 089- C84 MOVLW THRESH5
363 08A- 090 SUBWF HUMIDITY COUNT.O ,SUB & PUT RESULT IN
364 08a- 703 BTFSS STATUS.O ,TEST FOR CARRY
365 08C- A93 GOTO DISPLAY HUMIDITY
366 08D- 467 BCF PORT C.LED 30
367 08E- 5~7 BSF PORT C.LED 40
368 08F- 5A7 CSF PORT C.LED 50
369 OCO- SC7 8SF PORT C.LED 60
370 OCl- SE7 BSF PORT C.LED 70
371 OC2- NEXT6
372 OC2-A93 GOTO DISPLAY HUMIDITY
373
374 ~v*%~~ ~#~ ~*~r~*~ **~ *~ *~
375
376 QC3- CHECK HUMIDITY
377 OC3~ 041 CLRF RTOC ,CLEAR RTCC REGISTER
378 OC4- 9D5 CALL LONG DELAY ,DELAY TIME TO SAMPLE RTCC PIN
379 OC5- 9D5 CALL LONG DELAY ,DELAY TIME TO SAMPLE RTCC PIN
380 OC6 9D5 CALL LONG DELAY ,DELAY TIME TO SAMPLE RTCC PIN
381 OC7- 9D5 CALL LONG DELAY ,DELAY TIME TO SAMPLE RTCC PIN
382 OC8- 955 CALL LONG DELAY ,DELAY TIME TO SAMPLE RTCC PIN
384 OC9- 201 MDVF RTCC.W
385 OCA- C2D MOVWF HUMIDITY
386 OCB- 800 RETLM O
3~7
389
390 OCC- CHECK DEFROST TEMPERATURE ,WHEN TEMP 27 GOES LOW ITS LESS391 OCC- 405 ~TFSC PORT A.TEMP 27 ,START DEFROST CYCLE TIME 45
392 OCD- ACF GOTO BYPASS TFMP ,NOT BELOW 27 90 RETURN
393 OCE- 466 ECF PORT e.LED DEFROST ,TURN ON DEFROST LED
SU13STITUTE SHEET
W~ g3/14353 ~ ? Q P~/US93J001~5
394 ,TURN ON FAN NOW 9R AFTER 45 MIN WHEN COMPRESSOR GOES OFF?
395 OCF- ~YPASS TEMP
396 OCF- 444 ~TFSC PORT ~.IED DEFQOST ,NOT IN DEFROST SO NO NEED FOR
397 ODO- 800 RETLW O
398 UDl- 725 BTFSS PORT A.TEMP 37 ,TEST IF ABOVE 37, IF SO END D
399 OD2- 800 RETLW O ELSE RET~RN
400 OD3- 544 BSF PORT D.LED DEFROST TURN OFF DEFROST LED
401 ,TURN ON FAN
402 OD40 TEMP RETURN
403 OD4- 800 RETLW O
404
405 ~R~ *~ R~1lhn~11~*~1~J~*~*~ ~n~ ~J~X~~ ***~ *R~ *
406 ,
407 ODS- LONG DELAY
408 OD5- CEF MOVLM OFFH
409 OD6- 028 MOVWF DOl
410 OD7- LDLYl
411 OD7- 049 CLRF D02
412 OD8- 2E8 DECFSZ W l
413 OD9- AD8 GOTO LDLY2
414 ODA- 800 RETLM O
415 ODB- LDLY2
416 ODB- 2E9 DECFSZ D02
417 ODC- AD8 GOTO LDLY2
418. ODD- AD7 GOTO LDLYl
419
420 *~11~J~l~h~llllRl~ RX~ 1r1~ hJlllh1~ Y~ 1h~rllrR~R~ lr~h~*AJn~111111~Rl~lR~ h~lrhh~ll~
421
422 ODE- ONE MINUTE
423 ODE- 9B4 CALL BLINK2
424 9DF- 800 RETLW O
425
426 ~z~*~*n~v~x~r~
427
428 OEO- THREE MINUTE
429 OEO- ~84 CALL BLINK2
430 OEl- 800 RETL~ O
431
432 . ~Rh~n~Rn#~a~J~*~~n~2
433
434 OE2~ FORTY-FIVE HINUTE
435
436 0~2- 800 RETLW O
437
438 ~*~#~hx~#~R~*~*x~R~n~hh~R~w~
439
440 OE3- COMPRSSOR ON
441 OE3- 4E6 BCF PORT B.OUT COMPRESSOR
442 OE4- 800 RETLW O
443
444 OE5- COMPRESSOR OFF
445 OE5- SC4 BSF PORT B.OUT MO~OR HI
446 OE6- 800 RETLW O
~47
449
450 OE7- MOTOR LO
451 OE7- 5C6 BSF PORT B.OUT MOTOR HI
452 OE8- 4A6 BSF PORT 8.0UT MOTOR LO
453 OE9- 800 RETLM O
454
455 OEA- MOTOR HI
456 OEA- 5A6 BSF PORT B.OUT MOTOR LO
457 OEB~ 4C6 BCF PORT B.OUT MOTOR HI
458 CEC- 800 RETLW O
~59
- SU~3STITUTF SHEET
WO ~3/14353 PCT/US93/01)165
~ ~3 2 7 1 2 ~ 22
460 OED- MOTOR OFF
461 OED- 5C6 BSF PORT B.OUT MOTOR HI
462 OEE- 5A6 BSF PORT B.OUT MOTOR LO
463 OEF- 800 RETLW 0
464
465 R~8~ X~:~X11~*11~tl~X~X~tRfl*~*R7 ~*R~l~ XX~t~t**~Atlr9~11*11t1111~ *R*~t~X~
466
467 7FF- ORG 7FFH
468 7FF- A00 GOTO START
469
470 800- END
--- Errors, O
$1l)B~:~lTlJTE~ SHEE-r
