2025 Johnstone Supply Equipment Book

Nexus HU Series Submittal

Gas Fired Units More info

NEXUS HU Series Condensing High Efficiency Unit Heaters

GAS CONTROL OPTIONS

Ensure dip switches are set for your application.

Model #: HU300A1NS 3 110 (Option #3 units are what we carry)

Option

Description

Modulating with Outside Air reset (Stand alone or “Master” unit). Add Outdoor Air Sensor - Part # J11R09966 001 (List $85.0). If networking multiple units to single control, only 1 Outdoor Air Sensor needed. Can use single stage thermostat, two-stage thermostat will allow W2 to force unit to full fire. Modulating with Outdoor Air Reset (Network - Secondary unit). Add Outdoor Air Sensor - Part # J11R09966-001 (List $85.00 – only needed on primary unit) Modulating with Indoor Air Reset (with learning algorithm to set modulation). Can use single stage thermostat, two-stage thermostat will allow W2 to force unit to full fire. Modulating with 2 -10 VDC / 4 -20 mA Input . Can use single stage thermostat, two stage thermostat will allow W2 to force unit to full fire – requires field installed 4 - 20 mA or 0 - 10 VDC input. Modulating with Room Sensing . Add Indoor Air Sensor – Part# J11R09974-001 (List $53.00). Can use single stage thermostat, two-stage thermostat will allow W2 to force unit to full fire.

#1

#2

#3

#4

#5

Two Stage Gas Control – use two-stage thermostat (1 stage field selectable from 33% to 100%)

#6

All pricing subject to change. More products and information at JohnstoneSupply.com & the OE Touch mobile app. 010125