Bard W18HA-A Installation Instructions Manual

Bard W18HA-A Installation Instructions Manual Manual pdf 17 page image

Manual 2100-654CPage 17 of 34Thermostat W1/E A YO/DLO/BY2Y1R GC W2Bard #8403-0606 1012119 412-PinVent Plug 23 5 7CO2 OUTOptional CO2 ControllerBard Part #8403-067654321TEMP-OUT24VACW3/8 76532RUnit LowVoltageTerm. StripW2C GRT Y1 Y2 B/W1 L/1 DA 4187Do not connect "A" from thermostat if optional CO2 controller is used0-10 VDC modulating C02 control signal for modulating ventilation control (optional forECON only - see vent instruction manuals)6Relay Provided with Completestat54Factory installed jumper. Remove jumper and connectto N.C fire alarm circuit if emergency shutdown required.3Wire not needed below 15KW.2Wire required for dehumidification models only.Do not add these wires if setting up for modulating control. See note 7.W1/ESC SCSCCompletestatModel #CS9B-THO orModel #CS9BE-THOW2COM G24V Y1 Y2 O/B L DA GND7MIS-382114Yellow5WhiteBlue3 Orange42Red46If not equipped with a ventilation option to plug in, a jumper plug must be installed.3ALL VENT OPTIONS PLUG IN HERE82Ensure that thermostat is configured for heat pump, and not heat/cool. Must be configured toprogrammable and fan set to be programmed fan for the “A” output to function during scheduledoccupied periods. Must be configured for multi-stage for Y1 output to be active 1st stage cooling.For dehumidification, must be configured for “No Economizer” for YO/D to be active for humiditycontrol.FIGURE 8Programmable Thermostat ConnectionsMIS-3821A