Venmar V10 Guia de Resolução de Problemas

DDC Controls Package ManualVHC-36, -42 and -50Operation Instructions ManualModel: VHC-36, VHC-42, VHC-50©2009 Venmar CES Inc.

VCES-DDC-IOM-1C10WSHP Heating, One Compressor, Optional VRC® (Discharge Air Temperature Control)If outside air temperature is below summer setpoint (s

VCES-DDC-IOM-1C11The BacStat II is the interface to the DDC. It is used to monitor unit operation, provide maintenance/fault feed-back and allow the u

VCES-DDC-IOM-1C12The middle characters represent the mode the unit is in:‘Un’ = Unoccupied.‘Ov’ = Occupied ventilation.‘Or’ = Occupied recirculatio

VCES-DDC-IOM-1C131. Complete wire connections between the unit and the exhaust air damper by matching the correct wire colors on the actuator and end

VCES-DDC-IOM-1C14NOT ACTUAL SCHEMATICREFERENCE ONLYNOT ACTUAL REFERENCE3000300130023003300430053006300730083009301030113012301330143015301630173018301

VCES-DDC-IOM-1C15NOT ACTUAL SCHEMATICREFERENCE ONLYNOT ACTUAL REFERENCE#140004001400240034004400540064007400840094010401140124013401440154016401740184

VCES-DDC-IOM-1C16Table B1: DDC Points Reference GuideItem # Description LimitsFactory SetBACnet VariableFunction1 Ot1 Outside air temperature N/A N/A

VCES-DDC-IOM-1C17Table B1: DDC Points Reference GuideItem # Description LimitsFactory SetBACnet VariableFunction118 StpCoil override leaving setpoint4

VCES-DDC-IOM-1C18Table B1: DDC Points Reference GuideItem # Description LimitsFactory SetBACnet VariableFunction145 Stp Burner minimum output 0–50% 0%

VCES-DDC-IOM-1C19Unit ControlThe unit can be enabled in ventilation mode by jumpering FW 304 to 305. Alternatively the software point MV12 can be used

VCES-DDC-IOM-1C2Table of ContentsOverview ...

VCES-DDC-IOM-1C20Maximum Number of DevicesA maximum of 32 nodes are allowed on a single daisy chain segment. A node is defined as any device (Panel, Zo

VCES-DDC-IOM-1C21All DDC units come with a “BacStat” which can act as a room thermostat where you can change the heating set-point, cooling setpoint,

VCES-DDC-IOM-1C22Table D3: DDC Troubleshooting GuideProblem Cause SolutionUnit is not ventilating.Occupancy contact open.Check contact closure between

VCES-DDC-IOM-1C23Table D3: DDC Troubleshooting GuideProblem Cause SolutionExhaust fan will not turn on.Unit is in recirculation defrost (units equippe

©2009 Venmar CES Inc.VCES-DDC-IOM-1C (PN 500020459)February 2014Venmar CES Inc. has a policy of continuous improvement and reserves the right to chang

VCES-DDC-IOM-1C3The DDC control package is programmed for a range of temperature control and scheduling modes which are field selectable. The control p

VCES-DDC-IOM-1C4The DDC control package includes a four-button user in-terface called the BacStat II. This device can be mounted anywhere and when roo

VCES-DDC-IOM-1C5being used then you must not provide any jumpers to ter-minals 304, 305, 306, 307 or 308.The remote unit control multi-state variable

VCES-DDC-IOM-1C6Adjust the following setpoints:#147 – Summer Zone Setpoint• Limits: 60–80°F [15–25°C]• Factory set: 70°F• BACnet variable: AV84• F

VCES-DDC-IOM-1C7VentilationOn a call for occupied ventilation (occupancy contact closed):• Wheel starts (not in free cooling).• Recirculation damper

VCES-DDC-IOM-1C8Adjust the following setpoints:#124 – Enthalpy Free Cooling Setpoint• Limits: 10–70 Btu/lbs [23–163 Joules/Gram]• Factory set: 20 Bt

VCES-DDC-IOM-1C9ing air temperature setpoint, after staging delay, second compressor starts. This process continues until the (return) room air temper