Heat Pump Tool Box
Quick Reference Guide
Swimming Pool Heat Pumps
WATER CHEMISTRY
(Corrosive water voids all warranties)
For your health and the protection of your pool equipment, it is essential that your water
be chemically balanced. The following levels must be used as a guide for balanced water.
Recommended Levels
Water Temp. (Deg. F)
Fiberglass Pools
Total Alkalinity (PPM)
7.3 to 7.4
89 to 104
Other Pool & Spa Types
pH
68 to 88
Fiberglass Spas
120 to 150
7.3 to 7.4
120 to 150
7.6 to 7.8
80 to 120
Salt (PPM)
4500 MAXIMUM
4500 MAXIMUM
4500 MAXIMUM
Total Dissolved Solids (PPM)
3000 MAXIMUM**
3000 MAXIMUM**
3000 MAXIMUM**
Calcium Hardness (PPM)
Free Chlorine (PPM)*
200 to 300
2 to 3
150 to 200
2 to 3
68 to 104
200 to 400
2 to 3
*Free Chlorine MUST NOT EXCEED 5PPM
•
•
•
2
•
** In salt water chlorinated pools, the total TDS can be as high as 6000PPM.
Occasional chemical shock dosing of the pool or spa water should not damage the heater providing the water is
balanced.
Automatic chemical dosing devices and salt chlorinators are usually more efficient in heated water, unless controlled, they can lead to excessive chlorine level which can damage your heater.
Further advice should be obtained from your pool or spa builder, accredited pool shop, or chemical supplier for
the correct levels for your water
Warning: Electrolytic Corrosion and pH instability may be present with salt chlorinated pools.
Model & Serial number
alternative location.
Model & Serial number
can be found at rating
plate.
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R = Raypak Brand
2 = Approximate Horsepower
3 = Classic Cabinet Design
5 = Model Revison
R2350ti-E
E = Digital Control
ti = Titanium Heat Exchanger
0 = 1 phase 208/230V
Before you call Raypak service, make sure you have the MODEL NUMBER and SERIAL NUMBER.
MODEL NUMBER & SERIAL NUMBER
Model Number and
Serial Number Location
3
Clearances - General
OUTDOOR ONLY
PLACEMENT
TOP: 60”
BACK: 12”
FRONT: 24”
LEFT SIDE: 12”
RIGHT SIDE: 12”
FLOOR: 0”
4
Heat Pump Placement
• 1 ft. (12 in.) clearance for air
flow into the unit
• 2 ft. (24 in.) clearance for the
heat pump access
panels
• 3 ft. (36 in.) clearance from
any gas heaters, air
conditioners, or
additional heat pumps.
60” (1.52m)
MIN
3 ft. (0.9m)
MIN
12” (0.3m)
MIN
PLACEMENT
AS EASY AS 1, 2, 3
5
Placement - 5350 thru 10353
PLACEMENT
When placing the unit
avoid:
• Roof water runoff:
use gutters or
diverters.
• Water from
sprinkler sytems:
Cap or turn off
sprinkler heads.
6
Placement - 2350,3350,4350
PAD SPECIFICATION:
GREATER THAN OR EQUAL TO 2-1/2” THICK SOLID CONCRETE
3000 P. S. I. OR GREATER LOAD RATING
PAD LENGTH GREATER THAN OR EQUAL TO UNIT LENGTH +4”
PAD WIDTH GREATER THAN OR EQUAL TO UNIT WIDTH +4”
Models
2350
3350
4350
Minimum Pad Dimension
Width (in)
Length (in)
32
32
36
36
36
36
Restraint Spacing
Maximum (IN)
Minimum (IN)
20
26
30
24
30
24
THIS DRAWING USED AS A GRAPHICAL IRE PRESENTATION ONLY AND IT MAY NOT APPEAR EXACTLY LIKE THE UNITS LISTED IN THE ABOVE TABLE.
THIS DRAWING INTENDED FOR POOL HEATERS ONLY! ( SEE HP / AC UNIT SPECIFIC RESTRAINT DRAWINGS.)
3350
4350
2350
PLACEMENT
When placing the unit
avoid:
• Roof water runoff:
use gutters or
diverters.
• Water from
sprinkler sytems:
Cap or turn off
sprinkler heads.
SEE HIGH WIND LOAD RESTRAINT
DETAIL 1 & 2
SEE HIGH WIND LOAD RESTRAINT
DETAIL 1 & 2
MINIMUM 18 GA. X 1-1/2” WIDE GALV. STEEL
STRAP (G90) OR EQUIVALENT (MIN. QTY. OF 4
STRAPS) WITH (2) 1/2” LONG #12 SELF DRILLING
SCREWS EACH STRAP (MIN. 1000 HR. COATING)
UNIT
(1) 1/4” CONCRETE SCREW LENGTH TO
PENETRATE 1-1/2” MINIMUM.
CONCRETE PAD
(SEE PAD SPECS.)
HIGH WIND LOAD RESTRAINT DETAIL 1
HIGH WIND LOAD RESTRAINT DETAIL 2
ST-A1188-19
7
Single Unit Plumbing
HYDRAULICS
For Systems with flow that is difficult to
regulate or that exceed requirements
8
For systems within flow requirements
All Raypak & Rheem heat pumps require a minimum of 30gpm, and can handle up to 60gpm before
requiring the use of an external bypass.
RAYPAK / RHEEM 8350Ti & 8320Ti
RAYPAK / RHEEM 5350Ti & 5310Ti
Pressure
Pressure
Pressure
Pressure
Flow Rate
Drop: PSI
Drop: TDH
Flow Rate
Drop: PSI
Drop: TDH
10
1
2
10
1
2
20
3
7
20
2
5
30
9
21
30
4
9
40
9
21
40
7
16
50
10
23
50
10
23
60
11
25
60
11
25
70
12
28
70
12
28
80
13
30
80
13
30
RAYPAK / RHEEM 6350Ti & 6310Ti
Pressure
Pressure
Flow Rate
Drop: PSI
Drop: TDH
10
1
2
20
3
7
30
6
14
40
9
21
50
10
23
60
11
25
70
12
28
80
13
30
All Raypak & Rheem heat pumps require a minimum of 30gpm, and can handle up to 60gpm before
requiring the use of an external bypass.
HYDRAULICS
Hydraulic Performance
9
Alternate Heat Source
HYDRAULICS
10
Multi-Heat Pump Plumbing
HYDRAULICS
MINIMUM PIPE SIZES
2 UNITS
3-4 UNITS
5-6 UNITS
BRANCH MAIN
BRANCH MAIN
BRANCH MAIN
15 GPM 1-1/2" 1-1/2" 15 GPM 1-1/2" 1-1/2" 15 GPM 1-1/2"
2"
30
1-1/2" 1-1/2"
30
1-1/2" 2-1/2"
30
1-1/2"
3"
45
1-1/2"
2"
45
1-1/2"
3"
45
1-1/2"
4"
60
1-1/2" 2-1/2"
60
1-1/2"
4"
60
1-1/2"
4"
*Sizing based on10 ft/sec flow rates
11
Electrical Data
ELECTRICAL
MODEL NO.
VAC in. - PHASE - Hz
MINIMUM CIRCUIT
AMPACITY (A)
MAXIMUM BREAKER SIZE (A)
2350
208/230 - 1 - 60
23.0
35
3350
208/230 - 1 - 60
30.0
50
4350
208/230 - 1 - 60
34.0
50
5350
208/230 - 1 - 60
40.0
60
6350/6350HC
208/230 - 1 - 60
42.0
60
208/230 - 1 - 60
42.0
60
208/230 - 3 - 60
34.0
50
8350
Typical System Electrical Power Requirements
12
MODEL
POWER
MIN. CIRCUIT
AMPACITY
12 ga
10 ga
8 ga
6 ga
4 ga
2350
208/230-1-60
23
75 ft
120 ft
192 ft
305 ft
485 ft
3350
208/230-1-60
30
NR
92 ft
148 ft
233 ft
372 ft
4350
208/230-1-60
34
NR
81 ft
130 ft
206 ft
328 ft
5350
208/230-1-60
40
NR
NR
110 ft
175 ft
279 ft
6350
208/230-1-60
42
NR
NR
NR
167 ft
266 ft
8350
208/230-1-60
42
NR
NR
NR
167 ft
266 ft
8350
208/230-3-60
34
NR
81 ft
130 ft
208 ft
328 ft
ELECTRICAL
Maximum Wire Length
From Breaker to Heater*
* Based on maximum voltage drop of 3% of 230 volts = 6.9 volts
This chart is only a guide, based on NEC calculations. State and local codes must be
applied when applicable. Final specification of wire length and size should always be
performed by a licensed electrical contractor.
13
Electrical Hook Up
ELECTRICAL
14
ELECTRICAL
Electrical Wiring Diagram
Electrical wiring diagram is located
underneath the main terminal bar, behind
the electrical access panel
15
Temp. Sensor 10k Conversion
ELECTRICAL
⁰F
58
59
60
62
63
64
65
66
67
68
69
70
71
OHMS
16,123
15,711
15,310
14,921
14,543
13,820
13,473
13,136
12,809
12,491
12,182
11,882
11,589
⁰F
72
73
74
75
76
77
78
79
80
81
82
83
84
OHMS
11,305
11,029
10,761
10,500
10,246
9,999
9,758
9,525
9,297
9,076
8,861
8,651
8,447
⁰F
85
86
87
88
89
90
91
92
93
94
95
96
97
OHMS
8,249
8,056
7,867
7,684
7,506
7,333
7,164
6,999
6,839
6,683
6,530
6,382
6,238
⁰F
98
99
100
101
102
103
104
105
106
OHMS
6,097
5,960
5,827
5,697
5,570
5,446
5,326
5,208
5,094
For a given temperature, the resistance should be accurate to within plus or minus 1%. for a given resistance reading, the temperature should be accurate to within plus or minus 0.5%
Note: To read correct resistance you must use a meter capable of measuring to scale of 40K.
16
⁰F
OHMS
OHMS
9,950
⁰F
50
79
4,787
54
9,045
82
4,389
57
8,230
86
4,029
61
7,500
90
3,702
64
6,840
93
3,404
68
6,245
97
3,134
72
5,710
100
2,888
75
5,225
104
2,663
ELECTRICAL
Temp. Sensor 5K Conversion
For a given temperature, the resistance should be accurate to within plus or minus 1%. for a given
resistance reading, the temperature should be accurate to within plus or minus 0.5%
Note: To read correct resistance you must use a meter capable of measuring to scale of 40K.
17
Analog Start-Up
1. Verify that the power lamp is ON and that the pool/spa pump is
running and circulating properly.
2. Verify that the control panel Spa-Remote-Pool switch is in the
Remote (OFF) position.
ANALOG CONTROLS
3. Turn the control switch to either Pool or Spa to turn the system ON
and raise the thermostat setting above the current water
temperature. At this time the 2 green lamps should illuminate. The
fan should start up almost immediately, and the compressor should
start up after approximately 5min.
4. Allow the heat pump pool heater to operate for a few minutes after
the compressor has started to stabilize operating pressures and to
allow various component temperatures to normalize.
5. Verify that the discharge air temperature is approximately 8°F– 10°F
cooler than the air entering the unit. If not, see the troubleshooting
section.
18
Analog Control
Power (amber lamp): When lit, indicates power is applied to the unit.
Heat Demand (green lamp): When lit, indicates the actual water temperature is below
the target water temperature
Compressor Delay Active (amber lamp): Under normal operation, when lit, indicates
compressor anti-short cycle timer is active. The fan will run but the compressor
will be OFF for 6 to 8 minutes.
Defrost Active (red lamp): When lit, indicates unit is in defrost mode. Defrost mode
occurs when ice starts to form on the outside coil. The fan will continue to run but
the compressor will stay OFF (not heating) until weather conditions improve.
ANALOG CONTROLS
Water Flow (green lamp): When lit, indicates normal water flow.
Low Pressure (red lamp): When lit, indicates failure in the refrigeration circuit. When
this lamp is ON, service is required. Call for service assistance.
19
Thermostat Setting
Press the SET key key until you see P-S.
DIGITAL CONTROLS
20
Press up and down arrow keys choose between the
Pool Thermostat (POL) or the Spa Thermostat (SPA).
Want to make the Board a “Pool ONLY” Board? Please call 800-260-2758 for instructions.
Water Temperature
Press the up or down arrow to increase or decrease the
temperature setting one degree at a time.
DIGITAL CONTROLS
Press the SET key until you see POL is for pool and SPA is for spa.
The current programmed temperature will be displayed.
After aproximetly 5-7 seconds the current
pool water temperature will display.
Want to make the Board a “Pool ONLY” Board? Please call 800-260-2758 for instructions.
21
Unit Settings
Press the SET key until you see the F-C on the screen.
DIGITAL CONTROLS
Press up and down arrow keys.
Select either F (Farenheit) or C (Celsius).
After aproximetly 5-7 seconds the current
pool water temperature will display.
22
Want to make the Board a “Pool ONLY” Board? Please call 800-260-2758 for instructions.
Digital Start Up
2. Verify that the board is programmed so that the
desired temperature of the pool or spa is higher
than the displayed current water temperature.
3. Allow the heat pump pool heater to operate for a
few minutes to stabilize operating pressures and to
allow various component temperatures to
normalize.
4. Verify that the discharge air temperature is
approximately 8°– 10°F cooler than the air
entering the unit. If not, see the troubleshooting
section.
DIGITAL CONTROLS
1. Verify that the digital board is displaying a
temperature, the pool pump is running and
water is circulating properly.
23
Heat Cool Units
Press the SET key until you see the H-C on screen
DIGITAL CONTROLS
24
Press up and down arrow keys to select HEA (heat), COL (cool), or AUT (auto).
• See page 21 to set desired set point temperature.
• The heat mode will raise the temperature of the water whenever it
falls below the set point
• The cool mode will lower the temperature of the water whenever it
rises above the set point
• In auto mode, the unit will automatically toggle between heat and
cool mode in order to maintain the set temperature. This allows for
full automatic enjoyment of the unit’s capabilities, regardless of
whether there is a capable automation controller on site
• DO NOT connect an automation controller to the heat pump pool
heater if you plan on utilizing auto mode.
Digital Fault code-OFF
DIGITAL CONTROLS
The desired programmed temperature point is lower
than 60°F (15°C).
25
Digital Fault Code-LP
Shortage of refrigerant gas in the unit or faulty low
pressure control.
The unit will show (LP3) after 3 LP faults and will shut
down the unit for its protection.
DIGITAL CONTROLS
26
If this occurs, you should call for service.
Digital Fault code-HP
The unit will show HP6 after 6 HP faults. This will
stop the unit for protection.
Check water flow to the unit, clean all debris traps,
and clean/backwash pool filter if necessary. If code
persists, please call Heat Pump Services at:
(800) 375-7378.
DIGITAL CONTROLS
The high pressure switch within the refrigerant circuit
has been engaged. This is usually a result of low
water flow to the unit or a faulty high pressure control.
27
Digital Fault Code-FLO
DIGITAL CONTROLS
28
Possible causes:
• The filter is in backwash position
• The filter pump is stopped.
• The filter is dirty or there is debris in the basket(s)
• Shortage of water to pool pump.
• Water pressure switch must be adjusted or it is
broken.
The unit will show “FL3” after 3 FLO faults; The unit
will also shut itself down for protection
Digital Fault code-FS
A numerical digit behind the FS indicates how many
times the unit has switched into this mode
DIGITAL CONTROLS
Unit is in the defrosting cycle which means that the
fan is operating but the compressor has been
stopped.
29
Digital Fault Code -Keypad is pressing down on both buttons.
Keypad needs replacement.
DIGITAL CONTROLS
30
2-Wire Controller
Connect the two wires from
the automation device to
the TOTAL and COMMON
connections on the heat
pump pool heater’s wiring
block.
3-Wire Controller
Connect the three wires
from the automation device
to the COMMON, SPA, and
POOL connections on the
heat pump pool heater’s
wiring block.
ELECTRICAL AUTOMATION
Electrical Automation
31
Analog Control
Heat pump with analog controls
ELECTRICAL AUTOMATION
32
• Set the MODE selector dial to “REMOTE”
• Set both THERMOSTATS to the highest
desired temp for the respective body of water
• Enable heat pump pool heater on the automation
controller
Digital Control
Push the DOWN ARROW key until “OFF” is displayed
After approximately 5-7 seconds the current
pool water temperature will display.
Push the SET key until “SPA” is displayed.
Push the UP ARROW key until “104°F” is displayed
Wait for apprx. 5 to 7 sec. for current pool water temperature display.
Push the SET key until “P-S” is displayed. Push the down arrow
key until “POL” is displayed.
Enable heat pump pool heater on the automation controller.
ELECTRICAL AUTOMATION
Make sure heat pump pool heater is disabled on automation
controller. Push the SET key until “POL” is displayed
33
Unit Not Running?
Check power supply:
• Is the power light or digital display on?
• Is the circuit breaker assigned to the heat pump in the right position?
• Is the heat pump’s internal fuse blown?
TROUBLE SHOOTING
34
Thermostat and automation temperature settings:
• Is the unit “Calling for Heat” Is there a heat demand light or Display Code
• Is the thermostat set for a temp lower than the current water temp?
Automation settings:
• Is the unit set for automation, but the automation is off or not in “heating mode” ?
• Is the automation T-stat set for a temp lower than the current water temp?
• Is the heat pump set at a temp that allows the automation to do its job?
Compressor time delay:
• To prevent damage, a Time-Delay Mechanism prevents unit from running for apprx.
5 min. after being shut OFF.
Does the Ejected Air from the unit feel 8 to 10degF cooler that the outside
Temp? This is your first indicator of whether the unit is extracting heat from
the air:
• If YES: the unit itself is working; there could be a problem with water flow, the system,
or the jobsite
• If NO: the unit will probably need a service call.
Is water condensing on the evaporator coil and copper piping?
• This is another indicator as to whether the unit is extracting heat from the air; outside
conditions can affect the amount of condensation produced.
Is water flow through the unit adequate?
• Check system for debris in the baskets, dirty filter, improperly set valves, etc.
How was the unit sized for the jobsite? Refer back to sizing analysis and
results to confirm:
• Length of time unit is expected to achieve its goals
• Unit on site is the size specified
• All parameters were properly accounted for in the sizing (water features, location, etc.)
TROUBLE SHOOTING
Unit Not Heating
35
Unit Leaking
Heat pumps can produce a large amount of condensation during operation. Shut OFF
Heat pump BUT leave pool pump ON
• If the water/dripping eventually stops, the unit is NOT leaking
TROUBLE SHOOTING
36
• If the water continues to leak from the unit at the same rate for an extended
period of time, the unit will probably need a service call.
Unit Not Talking With Automation
Take the heat pump out of “Remote Mode” to verify functionality
• Use the manual to verify that both wiring and control settings are correct
TROUBLE SHOOTING
• If the unit begins to function correctly, the problem is most likely with either the
connections to the automation controller or the automation controller itself.
37
Refrigerant Testing
Compound
Gauge
High PSI
Gauge
TROUBLE SHOOTING
Low PSI / VAC
38
Evacuate / Charge
High PSI
Licensed HVAC Contractors: Temperature/Pressure charts and other related Refrigerant Circuit data
available upon request @ 800.260.2758
Heat Pump Sizing Program
visit www.raypak.com or www.rheem.com/prodcuts/pool_spa
Heat Pump Tool Box
Quick Reference Guide
Before You Call
Heat pump not running? Did you check the power supply, the thermostat and automation temperature
settings, & automation controller’s heater settings? Has it been less than apprx. 5min since the unit last shut
down? See page 34
Heat pump running, but not heating? Does the ejected air from the unit feel 8 to 10 °F cooler than the outside temp? Is water condensing on the evaporator coil and copper piping? Is water flow through the unit
adequate? Have you double-checked the unit’s sizing for the jobsite? See page 35
Heat pump is apparently leaking? Remember that these units can produce a large amount of condensation
during operation. Did you perform the “shut-off test” while the pool pump is still running? See page 36
Heat pump not “talking” to automation? Did you take the unit out of “Remote Mode” to see if it would run?
Have you verified both the wiring and all control settings? See pg. 37.
THIS IS NOT A SUBSTITUTE FOR THE INSTALLATION AND OPERATION MANUAL.
THIS MANUAL IS INTENDED TO HELP THE SERVICE TECHNICIAN WITH BASIC TROUBLESHOOTING.
Raypak, Inc. 2151 Eastman Avenue • Oxnard, CA 93030 • 800-260-2758
01/01/2012