C NC NO M 1 2 3 4 5 6 7 IN IN OUT IN IN OUT IN IN OUT M 1 2 3 4 5 6 7 P M B 8.75 DRAWING FOUR AS IT SHOULD BE RETURN FAN SUPPLY FAN NC NO NC HL1 TT1 TT3 TT2 TT4 3# - 13# D2 3# - 13# D1 LOCATED ON COLUMN IN LAB. DIAL MARKED FOR THERMAL VALUES PER MARK PUMP V2 PP 13# - 16# 5# - 12# V1 C NC NO NO NC C CWR CWS HWS HWR RETURN AIR NOTE: TT1 SHOULD BE MOVED UP STREAM OF RETURN FAN PREVENTING FAN HEAT GAIN. HL1 SHOULD BE MOVED TO DISCHARGE OF RETURN FAN AVOIDING DEAD AIR LOCATION. 20# 15# 10# 5# 0# MAX. MECH. COOLING COOLING VALVE 13# - 16# RANGE MECH. COOLING OFF MAX. FREE COOLING DAMPERS FREE COOLING 3# - 13# (8# -13# VIA BR1) MIN. FREE COOLING ENERGY DEAD BAND HEATING CLOSED HEATING VALVE 5# - 12# RANGE (0# - 6# VIA BR2) HEATING 100% OPEN EP1 RETURN MIXED AIR OSA HL TEMP. TEMP. TEMP. SUPPLY TEMP. LS1 LS2 HS1 BR1 1:1 RATIO SET 6# IN = 10# OUT PRV1 0# B M 1 2 3 B M 1 2 3 B M 1 2 3 RETURN RC1 MIXED AIR RC2 OSA HL RC3 DA 70˚F DA 58˚F RA 70˚F ---- SP ADJ.1 EFFECTIVE THERMAL SIGNAL RESTRICTOR RESTRICTOR RESTRICTOR RESTRICTOR
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