Table 4 continued: RTU/MPS/DPS/DPH Main Control Board I/O
I/O Cong. Code Condition
PolyCool 600 Main Controller — RTU & MPS & DPS Pos. 1 = 0, 2, 3 or 4
Digital Outputs — Relay (SPST, Normally Open, 230 VAC 3 Amp
# Point Comments Cong. Code Condition
DO 1 Compressor 1 / GC Stg 1 3 = 1
DO 1 INV Comp ON / OFF Currently Not Used
1 = 3 or 4 &
3 = 4 &
4 = L or M &
24, 25, 26 = 003–015
DO 1 Comp 1 3 = 5 & 4 = 4, 7, A, D or J
DO 1 VFD Comp 1 Enable 3 = 4
DO 2 Compressor 3 / GC Stg 2
3 = 1 & any of the following:
4 = 7, 9, A, D, E or
4 = 3 & 1 = 2 or
4 = 3 & 1 = 0 & 27 = 0 or 1 or
4 = 1 & 5 > 1
DO 2 STD3 Compressor 3 = 4 & 4 = M
DO 2 Unld 2 Comp 1 4 = 4 and 7 = 2, 3, 4 or 5
DO 2 Comp 3 3 = 5 & 4 = 7, A, D or J
DO 3 Compressor 2 / GC Stg 3
3 = 1 & any of the following:
4 > 1 & 4 < F or
4 = 1 and 5 > 2
DO 3 Heat Stage 1 1 = 3 or 4 & 10 = 2
DO 3 Gas Heat (ON/OFF) 1 = 3 or 4 10 = 7 or 8
DO 3 SCR Enable 1 1 = 3 or 4 & 10 = 6
DO 3 Comp 2 3 = 4 & 4 = 4, D
DO 3 VFD Comp 2 Enable 3 = 5
DO 4 Compressor 4 / GC Stg 4
3 = 1 & any of the following:
4 = 7, A, E or 4 = 1 & 5 > 3 or
1 = 0 & 4 = 3 & 27 = 2
DO 4 Unld 2 Comp 2 4 = 4 and 7 = 2, 3, 4 or 5
DO 4 Heat Stage 2 1 = 3 or 4 & 10 = 2 & 11 > 1
DO 4 Comp 4
[3 = 4 & 4 = D & 5 = 1] or
[3 = 5 & 4 = 7, J & 5 = 2] or
[3 = 5 & 4 = A & 5 = 3]
DO 5 Supply Fan All
DO 6 Cond Fan Output C
1 = 0 & 3 = 1 & 4 > 1 &
24, 25, 26 = (060–105) &
(27 = 0 or 27 = 1) & (7 ≠ 2, 3, 4 or 5)
DO 6 HGBP Vavle 1 = 2 & 3 = 1 & 28 = 2
DO 6 Constant Speed Enthalpy Wheel Energy Recovery 20 = 1 or 6 & 30 = 3, 4, 5, 6
DO 7 Cond Fan Output A 2 Relays, CF3 & CF4 3 = 1 & 4 > 1 & 4 < F
DO 7 Generic Comp Stg 7 3 = 1 & 4 = 1 & 5 > 6
DO 7 Heat Stage 3 1 = 3 or 4 & 10 = 2 & 11 > 2
DO 8 Cond Fan Output B 2 Relays, CF5 & CF6
1 = 0 & 3=1 & 4 > 1 & 4 < D &
24, 25, 26 = (075–105) &
(27 = 0 or 27 = 1) or 1 = 0 &
3 = 1 & 4 > & 4 < D &
24, 25, 26 = (075 or 090–140) &
27 = 2 or 1 = 2 & 3 = 1 &
24, 25, 26 = 030, 035, 040 or 050
Note: If 7 = 2, 3, 4 or 5
then this applies only if 24, 25, 26
is greater than 110.
DO 8 Generic Comp Stg 8 3 = 1 & 4 =1 & 5 > 7
DO 8 Heat Stage 4 1 = 3 or 4 & 10 = 2 & 11 > 3
Digital Outputs – Solid State Relays, 24-230 VAC, 0.5 A
# Point Comments Cong. Code Condition
DO 9 Alarm All
DO 10 Fan Operation All
ConTroller InpuTs/ouTpuTs
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