Wiring Adapter PCB – KRP1C75

Applied to individual VRV indoor units to facilitate local interlock of
external devices including ventilators, isolation dampers and auxiliary
heating apparatus.
Normally open dry contacts provide signaling at HEATING THERMO
ON1 Common integration point for humidifier.
Normally open dry contacts provide signaling at HEATING THERMO
ON1 -7°F. HEATING THERMO ON -1°F control basis only available
during heat pump lockout mode.
Normally open dry contacts close at HEATING THERMO ON1 or
COOLING THERMO ON1 Common integration point for external
ventilators

Normally open dry contacts close during indoor unit fan operation.
Common integration point for make up air fans or isolation dampers.