Heat Controller Water Source Heat Pump 4Figure-2, WattMaster WHP, Section, System Wiring Overview

WattMaster WHP	Section 4
COMPUTER
(OPTIONAL)

RS-485

Comm Loop

		Room Sensor
		with Optional
		Override & Adj.
110/24 VAC
Power Pak		Supply
Modem		Air
	110/24 VAC	Sensor
(Optional)
	Power Pak

CPU

24 VAC

Dirty Filter Alarm

or Leaving Water Temp

F

Typical WHP Controller Wiring

MR	TR
		SD
		RD
		OH	CD
				AA
				HS

C			Network Loop
OMM LI			RS-485
NK II
P	M	O	19200 Baud
L
O	C
O O		M
	P	ED
		M

CommLink II	WAT	TMASTER
Multiple Loop			CON	NC
				TRO
				LS,I
Interface					Local Loop
		MiniLink			RS-485
		Loop # 1			9600 Baud
					System Manager
				24VAC
		MiniLink			03/31/04	ALARMS
						WED
						03:38PM
					OCCUPIED
		Loop # 2			NO
				24VAC	Local Loop	24VAC
					RS-485
					9600 Baud
				Typical Network & Local Loop Wiring
				2 Conductor Twisted Pair with Shield
				(Beldon #82760 or Equivalent)
		MiniLink
		Loop # 3
					Local Loop
				24VAC	RS-485
					9600 Baud

#1

CPU

#1

CPU

#1

CPU

Loop #1	#30
WHP	CPU
Controllers

Loop #2	#30
WHP	CPU
Controllers

Loop #3	#30
WHP	CPU
Controllers

NOTE: * Only One Outside Air Sensor is Required per WHP System

MiniLink
Loop # 4	*OutsideAir
	Sensor
Loop # 4	24VAC

Notes:

WHP Loop

Controller

#1

CPU

See Note #3

Loop #4

WHP

Controllers

Local Loop

RS-485

9600 Baud

#29

CPU

1.) 24 VAC Must Be Connected

So That All Ground Wires

Remain Common.

2.) All Wiring To Be In Accordance

With Local And National Electrical

Codes and Specifications.

3.) The Local Loop With The Loop Controller Installed Can Only Have Up To 29

WHP Controllers Attached As The WHP Loop Controller Occupies Address #30.

4.) Systems may consist of up to 20 Local Loops (600 WHP Controllers). Consult

factory for systems that exceed these quantities.

4Figure-2

4-1:

System Wiring Overview

Start-Up and Troubleshooting