Lochinvar TST2313, MP2, INS7141, INS7162 Technical Data, is not a safety limit control

FIG. 59

The control is no longer able to read the boiler return sen- sor due to an open circuit (FIG. 59). The control will contin- ue to operate normally. Locate and repair the problem as described in INS7141. To clear the error message from the control after the sensor has been repaired, press either the Menu or Item button.

If the boiler return sensor was deliberately removed from the control, remove power from the control and repower the control to clear the error message.

FIG. 60

The control has detected no increase in the supply water temperature within the BOIL Alarm time setting. Check to see if the boilers are operating properly using the Test but- ton. To reset the alarm, press and hold the up and down arrow buttons for 5 seconds while in the VIEW menu.

TECHNICAL DATA

MP2 NINE STAGE BOILER & DHW / SET POINT

Control	- Microprocessor PID control; This
	is not a safety (limit) control.

Packaged Weight - - 3.3 lb. (1500 g), Enclosure A, blue modified PPO plastic

Power Supply	- 115 V (ac) + 10% 50/60 Hz
	600	Va
Relay Capacity	- 230 V (ac) 5 A 1/3 hp pilot duty
	230	VA

Demands

- 20 to 260 V (ac) 2 VA

Sensors Included

- NTC thermistor, 10 k

@ 77°F

(25°C + 0.2°C) B=3892

Nine StageoilerB

& DHW /oinSetp

Signal wiring muste batedr

at

least

Do not applyowerp

1

2

3

4

5

6

7

8

9 10 11

12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

H2026B

Com BoilBoilOutUnO

BoilCom Setp

Prim

–

Sup Ret +

Sw

Dem Dem DH

N

L

P1

1 1 2 2 3 3 4 4 5 5 6 6 7 7

8

8 DHW

FIG. 61

The installer must ensure that this control and its wiring are isolated and/or shielded from strong sources of electromag- netic noise. Conversely, this Class B digital apparatus com- plies with Part 15 of the FCC Rules and meets all require- ments of the Canadian Interference - Causing Equipment Regulations. However, if this control does cause harmful interference to radio or television reception, which is deter- mined by turning the control off and on, the user is encour- aged to try to correct the interference by re-orientating or relocating the receiving antenna, relocating the receiver with respect to this control, and/or connecting the control to a different circuit from that to which the receiver is connect- ed.

￿CAUTION

The nonmetallic enclosure does not provide grounding between conduit connections. Use grounding type bush- ings and jumper wires.

Dimensions	- 6-5/8" H x 7-9/16" W x 2-13/16" D
	(170 x 193 x 72 mm)
Approvals	- CSA C US, meets ICES & FCC
	regulations for EMI/RFI
Ambient Conditions	- Indoor use only, 30 to 120°F (0 to
	50°C), <95% RH non-condensing

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