Heat Controller Water Source Heat Pump Section, WattMaster WHP, Installation and Wiring, Modem

Section 2 WattMaster WHP

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

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

CommLink II	W	MAS
		ATT
Multiple Loop			TER C	ONTRO
				NC
				LS,I
Interface					Local Loop
		MiniLink			RS-485
		Loop # 1			9600 Baud
					System Manager
					24VAC
		MiniLink			/31/O0CC4 AULPAIRMS
							WED
						:38	PM
					03	ED
					03 NO

Loop # 2

#1

CPU

#1

CPU

Loop #1	#30
WHP	CPU
Controllers

	#30
Loop #2
WHP	CPU
Controllers

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

Loop #3

WHP

Controllers

#30

CPU

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.

2Figure-2	2-1:	System Overview
		Installation and Wiring