Last Day Of The Heat Pump Section.

1
(No Transcript)
2
Last Day Of The Heat Pump Section.

• Today well look at performance ratings,
  supplemental resistance heat and dual fuel
  systems.
• Then well break before taking our test.

3
Performance Ratings
4
EFFICIENCY

• EER
• COP
• SEER
• HSPF

5
EER

• BTUS OUT 39,000 BTU/HR.
• POWER IN 4380 WATTS/HR.

8.9 BTU/WATT
6
COP

• BTUS OUT 39,000 BTU/HR
• BTUS WE 4380 WATTS/HR X 3.1413 BTU/WATT
• PAY FOR

2.6

7
COP FOR HEAT PUMP AND RESISTANCE HEAT
4.0
3.0
HEAT PUMP
2.0
HEATING COP
RESISTANCE HEAT
1.0
0
-20
-10
0
10
20
30
40
50
60
OUTDOOR TEMPERATURE
8
HSPFHEATING SEASONAL PERFORMANCE FACTOR

• TOTAL HEATING OUTPUT OF A HEAT PUMP DURING ITS
  NORMAL ANNUAL USAGE PERIOD FOR HEATING DIVIDED BY
  THE TOTAL ELECTRIC POWER INPUT IN WATT-HOURS
  DURING THE SAME PERIOD

9
SEERSEASONAL ENERGY EFFICIENCY RATIO

• TOTAL COOLING OF A CENTRAL UNITARY AIR
  CONDITIONER OR UNITARY HEAT PUMP IN BTUS DURING
  ITS NORMAL ANNUAL USAGE PERIOD FOR COOLING
  DIVIDED BY, THE TOTAL ELECTRIC POWER INPUT IN
  WATT-HOURS DURING THE SAME PERIOD

10
WHEN CAPACITY DROPS
EERCOP - CAPACITY - SUCTION - TEMPERATURE
PRESSURE
OUTDOOR TEMPERATURE
11
WHAT CAUSES CAPACITY TO DROP
GAS DENSITY DECREASES
SHORTER EFFECTIVE STROKE
DECREASED FLOW RATE


12
Effective compressor stroke
13
250
60
60
14
250
60
59
15
250
60
60
16
250
60
100
17
250
60
250
18
250
60
251
19
250
1.50
60
250
20
(No Transcript)
21
(No Transcript)
22
Climatuff Scroll Introduction

• TTY030B April
• TTY036 - 60B July
• TWX030D July
• TTP048 _ 60D1,3,4 July
• TTR060D1 July
• TTB060 TTA060D3,4 4th Qtr.
• TWR060D TWA060D3,4 4th Qtr.
• TTR042-48D TTB048 TTA048D3,4 Late 4th Qtr.
• TWR048D1 TWA048D3,4 Late 4th Qtr.

23
CAPACITY VS. HEAT LOSS
HEAT LOSS
UNIT CAPACITY
CAPACITY
SUPPLEMENTAL HEAT NEEDED
TEMPERATURE
24
ELECTRIC HEAT

• SUPPLEMENTAL HEAT
• EMERGENCY HEAT
• AUXILIARY HEAT
• RESERVE HEAT

25
THERMAL BALANCE POINT
HEAT LOSS
HEATING CAPACITY

HEAT PUMP
26
CAPACITY VS. HEAT LOSS
BTU/HR
HEAT LOSS
UNIT CAPACITY
45,000
21,000
10F
50F
OUTDOOR TEMPERATURE
27
BALANCE POINT
BTU/HR
BALANCE POINT
HEAT LOSS
UNIT CAPACITY
34,500
32.5F
0
65F
OUTDOOR TEMPERATURE
28
DESIGN POINT
BTU/HR
HEAT LOSS
57,500
UNIT CAPACITY
NEED 36,500 BTU/HR ADDITIONAL
21,000
DESIGN POINT
10F
OUTDOOR TEMPERATURE
29
EMERGENCY HEAT
BTU/HR
57,500 X 1.00 57,500 BTU/HR
HEAT LOSS
57,500
UNIT CAPACITY
57,500 BTU/HR 3413 BTU/KW

16.8 KW
10F
OUTDOOR TEMPERATURE
30
TOTAL CAPACITYWITH 17 KW HEATER PACKAGE
3RD STAGE
2ND STAGE
1ST STAGE
19,340 BTU/HR
UNIT CAPACITY
19,340 BTU/HR
19,340 BTU/HR (5.66KW)
31
BALANCE POINT1 ST STAGE ELECTRIC HEAT
BALANCE POINT
HEAT LOSS
1ST STAGE
UNIT CAPACITY
22.5F
OUTDOOR TEMPERATURE
32
BALANCE POINT2ND STAGE ELECTRIC HEAT
BALANCE POINT
2ND STAGE
HEAT LOSS
1ST STAGE
UNIT CAPACITY
13F
OUTDOOR TEMPERATURE
33
BALANCE POINT3RD STAGE ELECTRIC HEAT
BTU/HR
BALANCE POINT
3RD STAGE
2ND STAGE
HEAT LOSS
1ST STAGE
UNIT CAPACITY
DESIGN POINT
4F
10F
OUTDOOR TEMPERATURE
34
Heat pump with heat strips

• This application has a 17KW heat strip. You will
  see that W2 heat strip is brought on during
  defrost.
• The W1 and W3 heat strips are controlled by
  outdoor thermostats. Only bringing them on as the
  outdoor temperature drops.

35
TO LINE VOLTAGE SUPPLY
BK/BL
BR/RD
TDL
SUMP HTR
PURPLE/WH
PURPLE/WH
BLACK
BLACK
CS
MS-1
CSR-1 CSR
BK/BL
RD
BR
OR
BK/BL
S R
OR
CPR IOL
CR
RD
RD
BR/RD
RED
LOHI
BROWN
BL/WH
FANMTR
CF
OFT-B
OFT-A
PURPLE
BLACK
BK/RD
CBS
YL YLBK BK
RD
ODS-B
Y1
R B B
O O Y Y X2 F
36
RD
YLYLBK BK
T1
Y Y X2 F
R B B
O O
RD/WH
RD BL
F
SM-1
F
YL BK
OR
OR
O
HEAT OFF COOL
O
O
BLACK
HA CA
Y
YL
Y
Y
WS
X BK
HEATERCONTROLS
TS
RHS-1
W3
X2
X BK X
W2
X2
X BK X
X BK X
W1
J
COOL
SM-2
AUTOON
HEAT
G
G
FAN
FANCONTROLBD T
RHS-2
ODS-A
T
ODA
BR
T
T
TSH
W
RD
U
B
BL
BL
B
B
R
RD
R
R
TO POWER SUPPLY PERLOCAL CODES
TYPICAL AIR HANDLER
TYPICAL MANUAL CHANGE OVER THERMOSTAT
37
EMERGENCY HEAT RELAY PACKAGE
MAINTAINS COMFORT IF HEAT PUMP FAILS BY
1 LOCKING OUT COMPRESSOR
2 BYPASSING OUTDOOR THERMOSTAT
3 BRINGING ON FULL STRIP HEAT
38
SQUEEZING OUT OPERATIONG

• DECREASE BALANCE POINT
• OVERSIZE HEAT PUMP
• UPGRADE BUILDING INS. GLAZING
• TURN DOWN THE THERMOSTAT
• DUAL - ALTERNATIVE HEATING SYSTEM
• 2 - STAGE HEAT PUMP

39
LOAD CALCULATION
AIR FLOW
CHARGING
CAPACITY
40
LOCATING THE UNIT

• AIR CONSIDERATIONS
• AVOID RECIRCULATION
• CUT OFF PREVAILING WIND
• WATER DRAINAGE
• ALLOW CLEARANCE FOR WATER DRAIN OFF
• SNOW CONSIDERATIONS
• AVOID SNOW DRIFTS
• RAISE UNIT IN HEAVY SNOW AREAS

41
DUAL FUEL
42
HEATING ON CYCLE
FOSSIL FUEL
HEAT PUMP
TEMP
TIME
43
DUAL FUEL SYSTEMS

• DEPENDS ON THE COST OF ELECTRICITY AND PRICE OF
  THE FOSSIL FUEL
• LESS EXPENSIVE TO HEAT COMPRESSION-CYCLE
  EQUIPMENT WHEN THE OUTDOOR TEMPERATURE IS MILD TO
  MODERATELY COLD
• MORE ECONOMICAL TO HEAT WITH FOSSIL FUEL WHEN THE
  OUTDOOR TEMPERATURE IS VERY COLD
• REDUCES DEMAND FOR POWER DURING PERIODS OF COLD
  WEATHER

44
ECONOMIC BALANCE POINT

• OUTDOOR TEMPERATURE ASSOCIATED WITH EQUAL
  OPERATING COSTS

45
ADD-ON HEAT PUMP KITTYPLUS103A

• SEQUENCE OF HEATING OPERATION
• NON-RESTRICTIVE MODE
• FIRST STAGE HEAT, HEAT PUMP (ONLY) OPERATES IN
  HEATING, IF HEAT PUMP CANNOT HANDLE THE LOAD ,
  WHEN THE TEMPERATURE IN ROOM DROPS APPROX.
  1-1/2F, FURTHER, SECOND STAGE HEAT IS CALLED FOR.
  SECOND STAGE TURNS THE HEAT PUMP OFF AND BRINGS
  THE FURNACE ON. FURNACE WILL SATISFY SECOND STAGE
  ONLY. FIRST STAGE IF CALLING WILL OPERATE AFTER
  45 SEC. DELAY
• THERMOSTAT EMERGENCY HEAT POSITION OPERATES
  FURNACE ONLY

46
ADD-ON HEAT PUMP KITTYPLUS103A

• SEQUENCE OF HEATING OPERATION
• RESTRICTIVE MODE - ( REQUIRES TAYSTAT250A )
• O.D.T. CHANGEOVER AT OR ABOVE ECONOMIC BALANCE
  POINT
• TEMPERATURES ABOVE O.D.T.,HEAT PUMP ONLY,WHEN
  CALLED BY FIRST STAGE STAT.
• TEMPERATURES BELOW O.D.T.,FIRST STAGE STAT. GOES
  TO THE FURNACE AND HEAT PUMP IS CUT OFF
• EMERGENCY HEAT POSITION CONVERTS SYSTEM TO
  FURNACE ONLY OPERATION

47
A COIL UPFLOWAPPLICATION
AIR FLOWSUPPLY DUCT
CLASS 2 LOW VOLTAGE WIRING TO SYSTEM
CONTROLLER COIL ENCLOSURE BONNET THERMOSTAT A
COIL FRONT COIL BAFFLE NOTE1. MOUNT BONNET
THERMOSTAT THROUGH FRONT COIL BAFFLE AT
THE HIGHEST PRACTICAL POINT INSIDE THE A
COIL SO THE SENSING ELEMENT DOES NOT
TOUCH EITHER SLAB OF COIL OR INTERFERE WITH
TUBING.
NOTE 1
UPFLOWFURNACE
48

T O R W Y B X2 G
ROOM THERMOSTAT
FIELD WIRING DIAGRAM FOR SPLIT HEAT PUMP SYSTEM
WITH TAYPLUS103A CONTROL IN FURNACE (UNRESTRICTED
MODE)
INTER-COMPONENT WIRING 24 V. FACTORY
LINE V. WIRING
24 V. FIELD LINE
V. WIRING FIELD INSTALLED
FACTORY WIRING
W3 Y3 X3 G3
K1-3
K1-2
G1
K1 TDR
HEAT PUMPO.D. SECTION
BR TOR
OYL YRD
RBL B
TDR - 1
Y2
K1-1
FURNACE
BR/X2 OR BK X2
G W1 W2 R B Y
X2
BT
Y1 B W1
TAYPLUS103A
LEGENDTDR - TIME DELAY RELAY MODEL
RLY1664 K - RELAY MODEL
RLY1663BT - BONNET THERMOSTAT
MODEL THT1248
TO POWER SUPPLY PERLOCAL CODES
TO POWERSUPPLY PERLOCAL CODES
3 PH. ONLY
3 PH. ONLY
49

T O R W Y B X2 G
ROOM THERMOSTAT
FIELD WIRING DIAGRAM FOR SPLIT HEAT PUMP SYSTEM
WITH TAYPLUS103A CONTROL IN FURNACE (RESTRICTED
MODE)
INTER-COMPONENT WIRING 24 V. FACTORY
LINE V. WIRING
24 V. FIELD LINE
V. WIRING FIELD INSTALLED
FACTORY WIRING
W3 Y3 X3 G3
K1-3
K1-2
G1
K1 TDR
HEAT PUMPO.D. SECTION
BR TOR
OYL YRD
RBL B
TDR - 1
Y2
K1-1
FURNACE
BR/X2 OR BK X2
G W1 W2 R B Y
X2
BT
Y1 B W1
TAYPLUS103A
ODT
LEGENDTDR - TIME DELAY RELAY MODEL
RLY1664 K - RELAY MODEL
RLY1663BT - BONNET THERMOSTAT
MODEL THT1248
TO POWER SUPPLY PERLOCAL CODES
TO POWERSUPPLY PERLOCAL CODES
3 PH. ONLY
3 PH. ONLY
50
Mechanical problems that cause electrical failures

• Failure of start components or compressor?
  Compressor starting with liquid present!
• Overcharged unit.
• Crankcase heater circuit failure.
• Cycle rate too short, superheat never
  stabilizing.
• Low supply voltage is the least common, and most
  often assumed.

51
Things we need to get better at

• Gathering information from the consumer.
• Looking beyond the failure in front of us, why
  did it fail. Shit does not just happen!
• Charging, letting the system run long enough to
  stabilize. Taking subcooling and superheat.
• Remembering that over 50 of the electronic
  controls replaced didnt need to be replaced!
• Looking at the entire system, not just the
  compressor section.

52
Start ups and Inspections

• Piping not shifted from shipping, check the lines
  where they pass under the coil to be free of the
  base pan.
• Check the air handler fan speed, name plate
  charge is for the A.R.I. Match. Depending on the
  match you have, the name plate charge could be
  off by as much as 2 lbs.
• Does the contactor really need replaced?

53
The End!

• Lets take a short break then well take our heat
  pump quiz.