Navien NPE-180A Service Manual

Also see for NPE-180A: Installation manual Installation & operation manual Specification sheet Installation manual Operation manual

Contents

Navien NPE-180A Service Manual Manual pdf 160 page image

H2Air++ 159Wiring Connection TableTerminal Wiring ConnectionAHU W1 Connect to AHU W1AHU W2 Connect to AHU W2AHU R Connect to AHU RFlow switch Flow switch input terminalT/S W1 Connect to thermostat W1T/S W2 Connect to thermostat W2T/S R Connect to thermostat ROutdoor Sensor Outdoor sensor inputDip Switch Function TableSW (DIP 1–4) ON OFF DefaultDIP 1 Outdoor resetnot in useOutdoor resetin use OFFDIP 2SimultaneousDHW andheating*DHW priority OFFDIP 3 2-stagethermostat using1-stagethermostat using OFFDIP 4 Reserved OFF* Depending on the DHW flow rate (demand), simultaneous DHW andheating may not be available. When the DHW demand is high, DHWsupply takes priority and the heating may be temporarily turned off untilthe DHW demand decreases, even when this function is activated.10.2 Installing the DeviceThis section provides information required to install the H2Air++add-on controller in an NPE-180A/240A water heater.WARNINGEnsure that you have turned off the power to the water heaterbefore installing the device.10.1.2 SpecificationsRefer to the following table for product specifications.Items SpecificationsModel name KDO-A100Device type Add-on controller for Navien NPE-180A/240Awater heatersInstallationtypeSnap-on (onto the NPE-180A/240A water heaterPCB tray)ConnectionsMain connector socket to water heaterMain control connector (13-pin cable)Thermostat input terminalsContacts for one thermostat (1 or 2-stage)Outdoor sensor connection terminalContacts for one outdoor sensorOutput terminal to the air handler unitContacts for one AHU (1 or 2-stage)10.1.3 CSA P.9 –11 RatingCombo SystemCSHE WHPF RecoveryEfficiency TPFHeatGenerator Fan CoilNPE-180A MMVE0S4NAAA 94 (%) 0.96 97 (%) 0.94NPE-240A MMVE0M4NAAA 95 (%) 0.95 96 (%) 0.9510.1.4 Device LayoutRefer to the following diagram for the product layout.