Install Instructions

RELAY

ARM “COLD START” APPLICATION

Each zone thermostat will signal the ARM control to operate its zone

circulator and start the boiler through the XX isolated end switch.

JUMPER

To be placed between terminals ZC and ZR. (Jumper is factory-in-

stalled in this position.) Terminals ZC-ZR are 120 VAC connections.

Connect isolated switch terminals X-X to boiler thermostat connec-

tion (see boiler manual).

NOTE: ARM-2 does not have ZC-ZR Terminals but has 2

isolated switches marked X1X1 and X2X2.

Factory installed jumper between ZC and ZR.