ULTRATEMP
®
Heat Pump Installation and User’s Guide
23
HIGH WATER
TEMP
Water temperature is above 108°.
LOW WATER
TEMP
Water temperature is below 40°.
LOW WATER
FLOW
The pressure switch sensing
water flow is open.
REMOTE
POOL SPA
Pool and Spa relay remote inputs
are simultaneously energized.
WATER THERM
SHORT
Water temperature thermistor
circuit shorted.
WATER THERM
OPEN
Water temperature thermistor
circuit open.
SUCTION TH
SHORT
Defrost thermistor circuit shorted
SUCTION TH
OPEN
Defrost thermistor circuit open.
BROWNOUT
The 24 VAC supply voltage to the
control board is low.
HIGH REFRIG
Refrigerant high pressure switch
is open.
LOW REFRIG
Refrigerant low pressure switch
is open.
FIVE ALARMS
Indicates that 5 faults have
occurred in one hour. This fault
will automatically reset in one
hour or can be manually reset by
pressing the ON/OFF button.
Control Panel Alarm Messages
Test
Recommended Level
Free Chlorine
or
1.0 to 3.0 ppm (3.0 to 5.0 spa)
Bromine
2.0 to 4.0 ppm (3.0 to 5.0 spa)
pH
7.4 to 7.6
Total Alkalinity (TA)
Calcium, Lithium, and
Sodium Hydrochlorite
80 to 100 ppm
Total Alkalinity (TA)
Sodium Dichlor, Trichlor,
Chlorine Gas, and
Bromine Compounds
100-120 ppm
Calcium Hardness (CH)
200 to 400 ppm
Cyanuric Acid
30 to 50 ppm
Total Dissolved Solids (TDS)
Less than 2000 ppm
Copper
0 ppm
* Concentration levels taken from “Basic Pool and Spa Technology”
published by NSPI (National Spa and Pool Institute).
MAINTENANCE
Water Chemistry
Proper chemical balances are necessary for sanitary
bathing conditions as well as ensuring your heat
pump’s long life.
Be sure to keep your chemical and mineral
concentration levels within the values indicated in the
table below. Failure to maintain proper water chemistry
may cause damage to the UltraTemp
®
Heat Pump and
may void the warranty.
Optimal Water Chemistry Ranges
Winterizing
In areas where freezing temperatures occur, you
should protect your pump, filter, and heat pump from
the elements. Perform the following steps to completely
drain the heat pump.
1. Turn off the electrical power to the heat pump at the
main breaker panel.
2. Shut off the water supply to the heat pump.
3. Disconnect the water inlet and outlet unions located
on the lower front panel of the heat pump.
4. Blow out the water lines.
5. Cover only the top of the heat pump to prevent debris
from falling into the unit. Do not wrap the sides of the
heat pump with any plastic or other material that will
retain heat or moisture inside the unit.
Spring Start Up
If your heat pump has been winterized, perform the
following steps when starting the system in the Spring:
1. Uncover the heat pump and inspect the top and sides
for any debris or structural problems.
2. Connect the water inlet and outlet unions on the
sides of the heat pump.
3. Turn on the filter pump to supply water to the heat
pump. Open the filter air bleeder and circulate water
through the system long enough to bleed all the air
out of the pool system. Check for leaks in and around
the heat pump.
4. Turn on the electrical power to the heat pump at the
main breaker panel.
Inspection and Service
Pentair Heat Pumps are designed and constructed
to provide long performance life when installed and
operated properly under normal conditions.
Periodic inspections are important to keep your heat
pump running safely and efficiently through the years.
Failure to properly maintain your unit can void
the warranty.
Owner Inspection
Pentair recommends that you inspect your heat pump on
a continual basis and especially after abnormal weather
conditions. The following basic guidelines are suggested
for your inspection:
1. Make sure the front of the unit is accessible for future
service.
2. Keep the top and surrounding areas of the heat pump
clear of all debris.
3. Keep all plants and shrubs trimmed and away from
the heat pump.
4. Keep lawn sprinkler heads from spraying on the heat
pump to prevent corrosion and damage.
5. If the unit is installed under a roof edge, install a
gutter or diverter to prevent excessive water and
debris from pouring down into the unit.
6. Do not use this heat pump if any part has been
under water. Immediately call a qualified professional
technician to inspect the heat pump and replace any
part of the control system which has been submerged.
Continue onto the next page for “Owner Inspection”.
Failure to winterize could cause damage to the
heat pump and will void the warranty.
