Heat Controller Water Source Heat Pump WattMaster WHP, Section, Installation and Wiring, 2-15

WattMaster WHP Section 2

All Comm Loop Wiring Is
		Straight Thru
T		T			T		T
SH		SH			SH		SH
R		R			R		R
		Connect To
	Next			Controller
			And/Or
		MiniLink				On

WHP Controller

		Local Loop
		RS-485
		9600 Baud
Room Sensor
		TMP
	W
	A
	R	GND
	M
	E
NORMAL	R	AUX
	C
	O	Connection To
OVR	O
	L
	E	AUX Terminal is Reqd
	R
		Only When Sensor
		Is Specified With
		Slide Adjust Option
	Discharge
	Air Temp.
	Sensor
Mount In HVAC
Unit Supply
	Air Duct

E

COMM	R	P		RELAY
T	A	R		OUTPUTS
	M	O		COM
SHLD		M		1-3
				OUT
R
				1
				OUT
LD4				2
				OUT
REC.				3
				OUT
				4
				OUT
				5
				COM
			COMM	4-5
12V			TEST
AIN	ADDRESS	ADD
1
AIN
2

AIN 3 AIN 4

AIN 5

GND

GND

PWR

AOUT

Water Source Heat Pump

Unit Connections

24VAC Fan-On/Off Rev. Valve-On/Off Compressor-On/Off

Heat Pump Reset

Aux. Heating Or Cooling

Diagnostic Blink Code LED

Required VA For Transformer

Each WHP Controller = 10VA MIN.

Dirty Filter
Alarm Contact
Thermowell
Or Surface Mount	Lockout
Temp Sensor
(Leaving Water Temp)

Optional Features

GND GND

24VAC

24VAC

CAUTION!

WHP CONTROLLERS

MUST HAVE ADDRESS SWITCHES

SET BETWEEN 1 AND 30

(UP TO 30 UNITS PER LOCAL LOOP) EXCEPT ON THE LOOP WITH THE LOOP CONTROLLER CONNECTED. THE LOOP CONTROLLER ADDRESS IS 30, WHICH ALLOWS FOR ONLY 29 WHP CONTROLLERS ON THIS LOCAL LOOP.

WHP Controller Wiring

FigureWarning:2-11:Polarity is very important when connecting power to the controllers! The grounded side of the control transformer must be connected to the terminal labeled GND on the WHP Controller. If a single transformer is used to power more than one WHP Controller you must connect GND-to-GND and 24VAC-to-24VAC on each WHP Controller. Failure to observe polarity will result in damage to one or more components in your system.

Warning: Use extreme care not to damage any of the electronic components while mounting the backplate. Mark the holes then remove the WHP Controller from the backplate before drilling.

Do not allow metal shavings to fall onto the circuit boards.

Installation and Wiring 2-15