Start-up Procedure
Installation of New Units
1.Follow all instruction for installation of water source heat pumps as detailed in the IOM (Installation Operation Maintenance manual).
2.Disconnect power or disable the circuit breaker to unit.
3.Run communication link wire to field terminal strips 14 and 16. (See wiring diagram in the unit).
4.Install zone sensor to low voltage control terminals 1 through 6. (See wiring diagram in the unit and zone sensor submittals).
Zone Sensor Placement
Zone sensor location is an important element of effective room control and comfort.
The best sensor location is typically on a wall, remote from the HVAC unit. Readings at this location assure that the desired setpoint is achieved across the space, not just near the unit itself. It may be necessary to subdivide the zone with multiple units to ensure adequate control and comfort.
5.Verify that water connections have been made to unit, then ensure that water is circulating through the unit.
6.Reapply power.
7.Check for STATUS GREEN LED operation to ensure power and communication has been made to the ZN510™.
Peel IDENTIFICATION TAG from unit and place in the ZN510 IOP, on a copy of Sheet 6 of this document, or on building plans for future location use. The actual room location on the tag may be hand written.
The following are typical areas where the zone sensor should not be mounted:
zNear drafts or “dead spots” (e.g., behind doors or corners)
zNear hot or cold air ducts
zNear radiant heat (e.g., heat emitted from appliances or the sun)
zNear concealed pipes or chimneys
zOn outside walls or other non- conditioned surfaces
zIn air flows from adjacent zones or other units
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