Relay And Screen States During Defrost; The Defrost Relay Will Cycle Around The Termination Setpoint During Defrost Min If Defrost Type Is Set To Elec/Cln, Otherwise It Will Be Off; Defrost Type (P-91); Defrost Termination - Resource Data Management PR0750-MOB Installation & User Manual

Mercury 2 & Intuitive Mobile Controller User Guide

Relay and screen states during defrost

State:
Screen:
Def LED:
RLY 1 Comp A (Defrost set to gas)
RLY 1 Comp A (Defrost set to electric)
RLY 1 Comp A (Defrost set to elec/cln)
RLY 4 Comp B
RLY 5 Defrost Relay
RLY 3 Lights relay (Timer channel On)
RLY 2 Fans (On in DF)
RLY 2 Fans (Off in DF)

*The defrost relay will cycle around the termination setpoint during defrost min if defrost type is set to elec/cln, otherwise it will be off.

Defrost Type (P-91)

If P-91 is set to gas, compressor A is switched on for the duration of the defrost cycle.

Defrost Termination

Defrost termination will be when the temperature parameter "def terminate" has been reached on the "defrost termination" probe. If the
"defrost termination" probe is not fitted then the air off probe will be used.

Fan Delay after Defrost

The fans will come back on when: -
The fan delay time has elapsed if the "fan delay mode" is set to time
Or If the fan delay mode is set to "temp", the fans will come on when the defrost termination probe reaches the fan delay set point,
or on the time parameter, whichever occurs first.
If the "defrost termination" probe is not fitted, the fans will come on when the air off probe reaches the control set point (If fans are
selected as "on during defrost")

Network Configuration

The final section to setup is the network address. In all instances, this must be done before the controller is plugged into the site network.
The controllers have an auto-initialise function, which will automatically log the device onto the site network. If the wrong address has
been entered onto the network, you will have to reset the controller address by setting the address to 00-0, and then re-enter the correct
address. (You may have to deregister the wrong address from the home system as well).
When logging a Mercury or Intuitive Mercury with an RS232 interface onto a network you must first connect the controller to a
communications module, this is either a 485 Legacy, RDM Wireless Mesh system, IP Futura or Mercury Switch. When using an Intuitive
Mercury controller, the controller has to have the correct network card fitted (see "compatible network interfaces"). For connection to a
Mercury Switch (Hub) or an external network interface, the standard fitment RS232 network card is utilized.

RS485 Legacy module / Intuitive Internal RS485 Network card

Connecting an RS485 legacy Module or an Intuitive Internal RS485 network card to the controller will govern which set up screens are
made available. Both modules support the "Genus" protocol only.
Display
485t
485A
gAdd
rLog
CLrA
ESC
The 485t option shows a value representing the network type. The possible values are:
The 485A option shows a value representing either the name of the controller in a Genus compatible or Wireless Mesh network.
Warning
Ensure that all power is
switched off before
installing or maintaining
this product
Please Note
Pump Down
DEF
On
Off
Off
Off
Off
Off
On
On
Off
Option
485 Network Type
485 Address/Name
Show underlying network address assigned to controller
Re-log the controller back onto the network
Clear the address/name from the controller
Exit network menu. N.B. this option must be selected to save any changes made in this menu
Value Network Type
1
Genus compatible (all versions)
2
RDM Wireless Mesh System (Wireless Mesh)
Defrost Min Defrost Max
DEF DEF
On On
On On
Off Off
Off Off
Off Off
Off/Cycles* On
On On
On On
Off Off
Revision 1.1
www.resourcedm.com
Drain Down Fan Delay Recovery
DEF DEF
Off Off
Off On
Off On
Off On
Off On if Reqd On if reqd
Off Off
On On
On Off
Off Off
Page 13 of 21
REC
Off
On
On
On
Off
On
On
On