tekmar 557 Thermostat Installation User Manual
Page 30
© 2014
557_D - 09/14
30 of 52
A Watts Water Technologies Company
Setup Menu (5 of 7)
Setting
Display
Y2 DELAY
Select the amount of time that must elapse after the Y1
relay is turned on before the Y2 relay is allowed.
Access Level: Installer
Range: AUTO, 5 to 180 minutes
Conditions: Y2 RELAY is set to HP2 or AC2.
Defaults: AUTO minutes
COOLING CWSD
Select the outdoor temperature below which the
cooling system is disabled.
Access Level: Installer
Range: OFF, 35 to 75°F
(OFF, 1.5 to 24.0°C)
Conditions: Always available.
Default: 55°F (13.0°C)
INTERLOCK
Select the amount of time for the heat - cool interlock.
Applies only when Mode is set to Auto. Reduces
excessive heat-cool switchovers.
Access Level: Installer
Range: 10 to 180 minutes
Conditions: Always available.
Default: 30 minutes
BALANCE POINT SCHEDULE
Select if the heat pump balance point should change
based upon a programmable schedule.
Access Level: Installer
Range: OFF, ZONE, MEMBER 1
to 4
Conditions: Y1 RELAY is set to HP1 and outdoor
temperature is available.
Default: OFF
BALANCE POINT
Heat pump balance point during the time period.
Access Level: Installer
Range: OFF, 10 to 70°F
(OFF, -12.0 to 21.0°C)
Conditions: Y1 RELAY is set to HP1 and an outdoor
temperature is available.
Default: OFF
BALANCE POINT
Heat pump balance point during the time period.
Access Level: Installer
Range: OFF, 10 to 70°F (OFF,
-12.0 to 21.0°C)
Conditions: Y1 RELAY set to HP1, BALANCE POINT is set
to schedule and outdoor temperature is available.
Default: OFF