tekmar 557 Thermostat Quick Start - Manual (Page 4)

All specifications are subject
to change without notice
4 557_Q - 02/14.
Product design, software and literature are Copyright ©2014 by tekmar Control Systems Ltd.,
A Watts Water Technologies Company. Head Offi ce: 5100 Silver Star Road, Vernon, B.C.
Canada V1B 3K4, 250-545-7749, Fax. 250-545-0650 Web Site: www.tekmarControls.com
For a full list of settings and operational details, please refer to the thermostat
Installation and Operation Manual (D557) included with compatible
tekmarNet ®
controls or download the brochure from www.tekmarcontrols.com
6. Critical Settings (Continued)
Setup Menu Settings
W1 TERMINAL UNIT
Select the terminal unit type of the first stage
of heat W1.
Range: NONE, HRF1, HRF2, OTHR
(other)
Default: NONE
BACKUP W2 TERMINAL UNIT
Select the type of backup heating.
Range: NONE, CONV, COIL, FURN
(furnace), OTHR (other)
Default: NONE
Y1 RELAY
Select the cooling equipment the Y1 relay
operates.
Range: HP1 (heat pump), AC1 (air con-
ditioner), W2
Default: HP1
Y2 RELAY
Select the equipment the Y2 relay operates.
Range: OFF, HP2 (heat pump stage
2), AC2 (air conditioner stage 2), HRV,
DHUM (dehumidifier), VALV (valve)
Default: OFF
ACCESSORY RELAY
Select the equipment the accessory relay
operates.
Range: OFF, HUM (humidifier), DHUM
(dehumidifier), VALV (valve)
Default: OFF
O/B VALVE
Select the heat pump operation of the O / B relay.
Range: O or B
Default: O