Aquacal LTM0266 - Manual (Page 13)

Page 7

The source water pump will cycle on first.

After a four minute delay, the heat pump compressor will start.
7) With the heater running, confirm the source-side water pump is operating properly with
adequate flow and no short cycling. If needed, clean filters leading to heat pump.
8) Wait for water and refrigerant flows to stabilize (approximately 5 minutes).
9) Adjust both source-side and pool-side valves leading away from heater to correct
temperatures. Please note - T
emperatures shown when unit is in “HEA” mode only; “ACH” and
“COO” discharge temperatures not shown.
10) Mark valves at this position for future reference.
MODEL
SOURCE-SIDE
MODEL
POOL/SPA
–SIDE
(“HEA” Mode Only)
CONDENSER TEMPERATURE CONDENSER TEMPERATURE
WS03 Cupro-Nickel 6° to 8°F WS03
Titanium 3° to 4°F
Cupro-Nickel 6° to 8°F
WS05 Cupro-Nickel 8° to 10°F WS05
Titanium 4° to 5°F
Cupro-Nickel 8° to 10°F
WS10 Cupro-Nickel 8° to 10°F WS10
Titanium 4° to 5°F
Cupro-Nickel 8° to 10°F
SP05 Cupro-Nickel 8° to 10°F SP05
Titanium 4° to 5°F
Cupro-Nickel 8° to 10°F
Table 7
3.2.d Irrigation and Storm Run-Off
Irrigation water spray can damage heat pump components. Regardless of water quality, it is important that
irrigation be directed away from the heat pump. Prevent rainwater runoff from pouring directly into the heat
pump. The heat pump is designed to withstand normal rainfall, but solid streams of water from roof drip-
lines may eventually damage heat pump components. If the heat pump resides beneath a roof edge, a
rain leader (gutter) or rain shield is required.
3.3 Winterizing
There are two freeze conditions requiring heat pump attention. A light-freeze is when ambient air
temperature falls below 32 degrees Fahrenheit for fewer than 8 hours. A hard-freeze is when ambient air
temperature falls below 32 degrees Fahrenheit for 8 or more hours.
CAUTION - Failure to heed the following may result in equipment damage.

Failure to properly winterize heat pump may result in serious equipment damage. Freeze damage is
not covered under the heat pump warranty.

While the plumbing connections are in the winterized condition (not fully tightened), it is imperative
pool/spa water not be circulated through the heat pump. Loss of water through loose plumbing
connections may result in damage to circulating pump, pool/spa structure, and/or other equipment.
Light-Freeze Conditions
Override time clocks and allow filtration system to run continuously during light-freeze conditions. Typically
during light-freeze conditions, circulating (moving) water will not freeze.